Tag: I-PEX

EMC Shielding Connectors

  1. PEX manufacturers connectors for a wide variety of equipment applications. We will discuss our “EMC Shielding Connectors” in this webinar.

When electromagnetic noise generated inside or outside the device interfere with the circuit inside the electronic device, creating (noise, unnecessary current may be induced to the circuits in the devices causing a malfunction or damage to high-performance electronic components which may also lead to  device failure. Therefore, effective countermeasures against electromagnetic noise must be taken, especially in high-performance compact electronic equipment with high-density electronic components.
There are two types of interference-conduction paths for electromagnetic noise: “Conducted Interference” and “Radiated Interference”.

For conducted interference electromagnetic noise, which is transmitted through conductors such as cables and board traces in equipment, the interference noise can be isolated and adjusted by incorporating electromagnetic noise filter components into the circuit appropriately. 

On the other hand, for radiated interference electromagnetic noise, in which electromagnetic waves are radiated as noise into a space and conducted to another circuit, it is necessary to take measures to block noise conduction in the air by using shielding. 

However, if the board circuitry, including the internal connectors that connect modules, is covered with shields, it may be difficult to unmate the connectors when necessary, for example, when repairing equipment . In this case, the use of a high-performance EMC connector, which prevents electromagnetic noise in the connector itself, can provide EMC countermeasures for the connector part without sacrificing the connector mating/unmating function.

ZenShield® Connectors

ZenShield® , I-PEX’s high-performance EMC shielding connector series, offers various types of EMC shielding connectors for different applications, including micro-coaxial,  micro RF , board-to-board FPC , and FPC/FFC connectors.

The ZenShield® connector series provides 360-degree EMC shielding to prevent electromagnetic noise radiation not only from the contact points of the plug and receptacle, but also from the board mounting part (SMT positions) of the signal terminals. In addition, the shields of both the plug and receptacle are properly grounded at multiple points when the connectors are mated, and are also properly grounded at multiple points on the board. This design protects the signal in the connector from external electromagnetic noise and prevents the signal in the connector from radiating electromagnetic noise to the outside. This unique shielding design provides the I-PEX ZenShield® connector series with excellent EMC countermeasures. 

The effect of the EMC shielding is shown more clearly in this electromagnetic interference (EMI) simulation, comparing a general connector with a ZenShield® EMC shielding connector. The left figure shows a cross-sectional view of a general, partially-shielded micro-coaxial connector, and the right figure shows a ZenShield® EMC shielding connector, CABLINE®-CA II.

The leakage from the signals is displayed in light blue.
In the general connector, on the left, leakage from the signals emanates out from the connector through the contact tail areas. In the ZenShield® EMC shielding connector, on the right, the radiation from the signal pin is restricted to the area within the connector and its shield. Outside of the connector, there is almost no light blue emissions.

Because the connector itself can significantly reduce EMI due to this design, ZenShield® allows for a flexible board design, such as placing the connector close to the antenna, especially in high-performance electronic equipment with wireless communication functions that are required to address intra-system EMC issues.

With these design features, the connector itself provides significant mitigation of EMI. ZenShield® gives board designers more flexibility for designing the board by allowing the connectors to be placed in close proximity to sensitive subsystems, such as transmit/receive antennas, that are commonly found in high-performance wireless communication systems.

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.

Assembly performance of ultra-fine coaxial cable

The ultra-fine coaxial cable assembly offers stable mechanical structure and supports high-speed signal transmission. With the high flexibility and shielding properties of the ultra-fine coaxial cable assembly, it is highly suitable for electronic products requiring high-capacity data transmission.

Structure of coaxial cable:

Coaxial cable is a multi-layered structure, consisting of a center conductor, insulation layer, outer conductor, and outer covering, known as the ‘coaxial cable’.

Ultra-fine coaxial cable

In coaxial cables, the cables used for high-performance small devices such as laptops, foldable smartphones, and medical equipment are extremely small. Generally, coaxial cables with an outer diameter ≤1mm are referred to as “ultra-fine coaxial cables”

High Flexibility

Ultra-fine coaxial cables are commonly used due to their higher flexibility compared to shielded FPC/FFC. They can maintain stable electrical characteristics even when bent

Excellent Impedance Control

When a high-speed signal is transmitted through a cable, the electrical signal can reflect at impedance discontinuities. Therefore, it is necessary to maintain a constant impedance as much as possible to suppress interference and ensure signal quality. By adjusting the distance between the center conductor and the outer conductor or the insulating material, the impedance of the ultra-fine coaxial cable can be appropriately controlled

Outstanding Shielding Capability

The outer conductor of the ultra-fine coaxial cable serves as electromagnetic shielding, providing excellent resistance to electromagnetic interference (EMI) by preventing the leakage of electromagnetic noise from the signal transmitted through the center conductor. Additionally, it exhibits good immunity to electromagnetic susceptibility (EMS) by effectively protecting against external electromagnetic noise

Ultra-fine Coaxial Cable Assembly Process

By terminating the ultra-fine coaxial cable with connectors, it is possible to create small and flexible assemblies of ultra-fine coaxial cables with excellent electrical characteristics

High-Performance Electromagnetic Compatibility Shielding

By using I-PEX’s EMC shielded connectors (ZenShield®), ultra-fine coaxial cable assemblies can provide significant electromagnetic interference mitigation. Therefore, ultra-fine coaxial cable assemblies with ZenShield® connector series are commonly used in high-performance electronic devices equipped with wireless communication capabilities, which require addressing EMC issues within the system.

Product Assembly Process with High Flexibility Advantage

The flexible cable characteristics of the ultra-fine coaxial cable assembly allow it to be used in various application scenarios, such as situations where the cable needs to pass through rotating components or in narrow and complex structures that make wiring challenging during assembly

Suitable Application Examples

The benefits and advantages of ultra-fine coaxial cable assemblies lie in their capabilities for mechanical and signal transmission. These components can handle high data rates while providing a high degree of flexibility and shielding performance.

Below are application examples that demonstrate the flexibility of ultra-fine coaxial cable assemblies

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.

Purchasing Connector Terminal, Pay Attention to These 5 Points!

A connector is a component used to connect electronic devices for the transmission of electrical signals or power. Wire terminals are part of the connector and are used to connect wires to the connector. Proper selection of wire terminals is an important step to ensure the performance of the connector.

Here are some considerations when selecting wire terminals for connectors:

1.Match current and voltage: When choosing wire terminals, it is crucial to ensure that their rated current and voltage can meet the requirements of the application. Choosing incorrectly can result in electrical faults, arcing, and fire hazards.

2.Use durable materials: Wire terminals are typically made of metal, and it is important to select high-quality and durable materials such as copper, silver, nickel, etc. These materials offer excellent conductivity and corrosion resistance, ensuring the stability and reliability of the connector.

3.High reliability: When selecting wire terminals, it is important to ensure a secure connection with the wires and the ability to withstand vibration and other mechanical pressures. Additionally, the terminal design should be straightforward, easy to install and use, and should have good protective features to prevent the impact of dust, moisture, and other environmental factors on the connection.

4.Proper sizing: The dimensions of the wire terminals must match the design of the connector to ensure its performance and reliability. If the terminals are too large or too small, it may result in unstable connections or failure of the connector.

5.Trustworthy brand: It is recommended to choose wire terminals from reliable brands and purchase them from reputable suppliers. This ensures the quality and performance of the terminals and provides better after-sales service and support.

In summary, proper selection of wire terminals is an important step in ensuring the performance and reliability of connectors. When choosing wire terminals, attention should be given to the above aspects to ensure that the selected terminals meet the application requirements and provide stable and reliable electrical connections for your devices.

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.

Why do connector terminals need plating? Mainly for these four reasons:

Connector terminals are an indispensable part of electronic devices, serving to connect electronic components on circuit boards. The production of connector terminals involves multiple processes, with electroplating being a critical step. So, why do connector terminals require plating?

Firstly, plating helps prevent corrosion of connector terminals. Connector terminals are usually made of metal, which is susceptible to oxidation, corrosion, and other factors. Without electroplating treatment, the connector terminals can experience corrosion during use, leading to poor connections, signal interference, and other issues. Through electroplating, a protective film is formed on the surface of the connector terminals, effectively preventing corrosion.

Additionally, electroplating enhances the conductivity of connector terminals. The conductivity of connector terminals is crucial as it directly impacts the performance of electronic devices. Through electroplating, a conductive layer is formed on the surface of the connector terminals, improving their conductivity and ensuring the proper functioning of electronic devices.

Furthermore, plating also strengthens the adhesion of connector terminals. Connector terminals need to establish a secure connection with components on the circuit board. If the adhesion of the connector terminals is weak, issues like looseness and poor contact can occur. Electroplating creates a strong adhesion layer on the surface of the connector terminals, effectively enhancing their attachment and ensuring reliable connections.

Lastly, plating enhances the aesthetic appearance of connector terminals. Connector terminals are often exposed, and surface imperfections such as roughness and oxidation spots can affect the overall aesthetics of the electronic device. Through electroplating, a smooth and uniform surface layer is formed on the connector terminals, improving their visual appeal.

In summary, connector terminals require electroplating primarily for corrosion prevention, improved conductivity, enhanced adhesion, and aesthetic purposes. Electroplating is a crucial step in the production of connector terminals as it effectively enhances their performance, reliability, and ensures the proper functioning of electronic devices.

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.

The lock function of the connector

Connectors with locking functions can strengthen the mating retention force, which helps prevent disengagement of the connection. There are various types of locking methods for connectors.

With the development of high -performance and miniaturization of electronic devices, portable consumer devices such as personal computers, tablets and smartphones have become a well -known thing in our daily life. We take them wherever we go. However, the more frequent the number of portable equipment we carry, the greater the risk of accidents. Therefore, the cables and connectors used for mobile devices should have anti -impact and vibration resistance.

Connectors with locking function can enhance the sustainability of chimeric and prevent connection interruption. The connector has various types of locking methods.

1. Cabline® series lock function

A variety of extremely fine coaxial connectors in the Cabline® series have a lock function

For example, Cabline®-VS II is a 0.5 mm spacing horizontal plug-in model. In the chimeric steps, first complete the chimeric of the public seat, and then rotate the lock cover on the public seat to the parent seat on the PCB.

Maintenance data

For example, the comparison results of Cabline®-VS II 30P public seat show that the public seat with locks remains about 8 times without locks.

* I-PEX can also evaluate vibration, impact, drop test, etc. based on the conditions of the customer’s use

Cabline®-UM is a low-back vertical insertion connector with a 0.4 mm spacing. It has a unique lock cover structure and can achieve automatic locking.

The extremely fine coaxial connector of Cabline® with a lock function

Some Cabline® series also have FPC options

Cabline® FPC connector series with lock function

2. MHF® series lock function

MHF® small radio frequency coaxial coaxial connector series has an LK type and has a lock function. Its patented mechanical locking characteristics have greatly improved the maintenance of the public seat compared with similar small radio frequency coaxial connectors in the market. 

Maintenance data

For example, the public seat maintenance comparison of the MHF®i series connector shows that the MHF®i connector with a lock -locking holder (MHF®I LK) is about twice the MHF®i connector without mechanical lock functions.

MHF® connector series with locking function

3. The lock function of theevaflex® series

EVAFLEX® FFC/FPC connector has an automatic locking function, which can realize a one -step chimeric FFC/FPC, which is stronger and durable than the traditional FFC/FPC connector. Its one -step operation also helps to increase productivity, and it is also designed for the automation of robots.

When the FPC / FFC with a gap is inserted, the Lock Pin with flexible rail shapes in the EVAFLEX® series connector will be locked. In addition, clicking real -time feedback will help prevent situations without completely chimi. The automatic lock structure is reliable to fix the FFC position with gap to create excellent maintenance to fight against tensile and vibration.

FPC maintenance data

For example, EVAFLEX® 5-HD 24P connectors, FPC’s maintenance comparison results show that the FPC with locks remains about 3 times without locks.

EVAFLEX® Connector Series with Auto-Locking Functions

4. The lock function of miniflex®

Miniflex®FPC / FFC connector is usually called Zifs or Lifs, and there is also an LK type with mechanical lock options.

The contact point of the lock generates high maintenance. These contact points are located on both sides of the connector and are designed to capture and maintain a specific incision area of the FPC. They need higher FPC maintenance, and to increase the ideal solution to the smaller PIN count to increase FPC.

FPC maintenance data

For example, the miniflex® 3-BFN series, 0.3 mm spacing, horizontal chimeric FPC/FFC connector, 19P FPC guarantee comparison results show that the maintenance of the LK type FPC lock is better than a connector without lock locks. Keep a height of about 1.7 times. 

MINIFLEX® connector with locks

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.

5G connector to help 5G communication realize vision

In 2019, 5G communication began commercial deployment globally. So, what led us to have made such a revolutionary transformation in the field of communication? The smooth realization of 5G communication is inseparable from 5G chip manufacturers, OEM manufacturers, communication agreement standard formulation agencies, and many companies. 5G communication has gone from scientific research to formal commercial use. Along the way, I also experienced many failures, and finally successfully achieved commercial use, so as to change the world.

The connector is usually an electronic component that is easily overlooked. The connector does not play the core function like the LTE or WiFi transceiver, but it is indeed an important basic component. The connector assumes the signal transmission function. In this process, the minimum implementation of the attenuation and distortion in transmission is our ideal.

From the Wi-Fi, which is ubiquitous in the Moson password and telegram, to the honeycomb communication, and the ubiquitous Wi-Fi in our daily life, the connector plays a very important role in communication. In recent years, the connectors in the consumer electronics field have always focused on a theme such as miniaturization, trying to solve complexity and various problems.

Among the connector products developed by I-PEX, from the MHF®i to the MHF®5 series of microbenic coaxial connectors, from the perspective of size, the area and chimeric height have steadily decreased. Features, such as: Bobby and insertion losses have improved to some extent. However, with the requirements of new technologies for connectors, this model has become unreasonable. 5G communication requires us to do more than before.

At the same time of 5G communication requirements, the connector needs to improve the S parameter (resident wave ratio and insertion loss), and it is also necessary to increase the shielding effect of the connector and wiring beam in the chimeric state. Only in this way can we reduce electromagnetic interference and improve the electromagnetic compatibility performance of the whole machine.

The II-PEX company is a pioneer for developing and producing 5G millimeter waves and Sub 6GHz with coaxial types and board-to-board connectors. The product has also been applied to early 5G communication devices. These devices include: smartphones, laptops, mobile hotspots, AR/VR, and wireless access devices in fixed positions.

Novastack® 35-HDN connector

The NOVASTACK 35-HDN series connector is the best choice for electronic products with high space restrictions such as smartphones and hotspots, which can transmit a 15GHz band of the mid-frequency IF from millimeter wave frequency. The product spacing is 0.35mm and a chimeric height of 0.7mm is a super small design, which enables R & D engineers to flexibly cloth and maximize the use of space. The application of patented technology-360-degree shielding can cut electromagnetic interference to the greatest extent after the connector is chimp. Due to the restrictions of the overall space, such as smartphones, mobile hotspots, miniaturization and excellent shielding, are a huge challenge for R & D engineers.

MHF® 7s connector

The MHF 7S series polar shaft connector reflects the huge breakthrough of stamping technology in the production of miniaturized connectors. The MHF 7S series connectors redefine the boundary line that can be done, and is in the leading position of anti -electromagnetic interference. Revolutionary design can eliminate the main sources of electromagnetic interference. As electronic products are full of numerous radio frequency signals, this design can effectively reduce interference, thereby helping manufacturers can successfully pass electromagnetic radiation testing. In addition to reducing electromagnetic interference, the MHF 7S series connector is 1.5mAX at 15GHz, the packaging size is 2.0mmX2.0mm, and the chimeric height is 1.4mm. This connector is superior to the electromagnetic interference performance. It is an ideal choice for the ground frequency band (15GHz) transmission equipment, including: small base stations, laptops, wireless access devices, CPE, etc.

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.

Applicable to the cable -like connector for ultrasonic probe components

Medical electronic equipment has more and more demand for cable connectors. The connector and cables also need to have the performance of humidity, impact resistance, insert resistance, self -cleaning, prevent EMI, etc., so as to provide reliable connection performance and high signal integrity. Users hope that medical equipment can continue to provide reliable performance day after day, so these connectors and cables must be able to use them in a harsh working environment without damage or loss. At the same time, the insertion life of the connector can exceed thousands of times. In addition, the long -term approval cycle and long product life of the regulatory authorities also require parts suppliers to ensure that their products maintain a certain period of life cycle. Therefore, when choosing a cable connector for medical equipment design, it has a long history, has a successful application experience in the medical electronics equipment industry, and can provide a wide range of solutions to meet the frequent plug -in and humid connections of the equipment and the humid -resistant connection. The supplier and the production line are priceless. I-PEX has several connectors for medical application design.

The most commonly used medical equipment for connectors and cables is an ultrasonic device. Ultrasonic probe line components usually use extremely fine coaxial axes from 42AWG to 36AWG, so as to reduce the weight and volume of the device itself and extremely fine coales can also make the ultrasonic probe soft. The extremely fine coaxial axis that matches the characteristic impedance to transmit the signal on the transmitter/sensor of the ultrasonic probe, so the signal line needs to be shielded to avoid EMI and string disturbances, and ensure that clear images are generated. A single ultrasonic probe component will already use up to 192 or more independent coaxial axes, so how to deal with so many wires is also an important design topic.

The solution includes the direct welding of the line to the switch card, the plate -to -board connection, or directly welded in other types to get the connector. Switching cartoon is usually designed as a small PCB board, which can be used directly for cable connection, but the back is also designed with a board -to -board connector to switch cards to connect between cables and connectors. There are some connectors that can be connected directly with the cable so that they can save the card. For example, the coaxial connector is such a product that can provide a modular structure. It can support direct welding, but also allows probes to be equipped with separate assembly and then installation. It can facilitate the rework and maintenance of the product, effectively avoid product maintenance cycle, and improve the overall cost advantage.

The internal connector can use multiple small PIN number connectors. However, multi -channel ultrasonic probe components require a large PIN number interface connection. In the field of medical applications, medical staff needs to be replaced from one probe to another probe according to the type of ultrasound inspection. Therefore, the interface connector of the large PIN number needs to be specially designed to reduce the insertion power to ensure the convenience of using fashion assembly.

The Cabline®-CA II series pole details of the same axis panel connector is 0.4mm spacing, a combination height of 1mm (± 0.1 mm), a 360 ° full shield metal cover with locks, multiple connection locations, and excellent 20Gbps 20Gbps /Lane’s signal integrity during high -speed transmission provides a perfect solution for equipment that requires high -speed transmission, including ultrasonic probes.

The ultrasonic sensor is generally made of a voltage chip installed on a flexible circuit. The signal is transmitted from a flexible circuit board to the extremely fine coaxial axis and transmitted to it. The application of small and fine coaxial connectors simplifies the structure of flexible components. It can also split pole fine -induced components, and assemble the two components in the final assembly. On the side of the cable, the same method can also be used in the same method. The welded connector, one PCB board, and another interface connector. As a result, the cable can be directly connected to the PCB of the chimeric connector. After that, this component can be covered and installed on the hardware with a lock device to strengthen safety.

The MINIDOCK® series connector can be applied to the reinforced docking equipment and the device that requires lower insertion power, such as the interface connector used by ultrasonic probe components. These connectors need to have a very strong body structure, integrated guidance mechanism, optional moisture -proof function, and support for more than 20,000 times. 

Although there are many connectors for the choice of ultrasonic equipment R & D engineers, the requirements for performance cannot be compromised. The intensity of the connector, easy to use, product reliability, excellent signal integrity, and high frequency plug -in durability are very critical. Subsequently, you need to optimize the selection to balance product application requirements and the realization of the product.

Why can I-PEX’s ultra-fine coaxial connectors be widely used?

1.Characteristics of I-PEX ultra-fine coaxial connectors

I-PEX Connectors is a pioneer in the ultra-fine coaxial connector industry, offering a wide range of coaxial connector products for various applications. I-PEX ultra-fine coaxial connectors are among the top choices in the PC tablet connector industry, with a leading market share.

(CABLINE®-VS Receptacle: VESA standard connector)

2.The characteristics of I-PEX shielded connectors.

With the development of high-performance, power-saving, and miniaturized electronic equipment, the demand for high-speed signals is increasing, the number of electronic components operating at low voltage is increasing, and the density of installed electronic components is also increasing. If electromagnetic noise is added from the outside, it may cause unnecessary current in the internal circuit of the device, causing failure or damage of high-performance electronic components, and may also cause damage to electronic devices. .In addition, in electronic devices with wireless communication functions (such as laptops, tablets, and mobile phones), electromagnetic waves generated inside the devices increase the noise of the wireless communication circuit, thereby degrading the antenna reception performance.
.In this case, in general, the measure against electromagnetic noise inside the equipment is to physically shield the electromagnetic noise by incorporating an electromagnetic noise filter element into the circuit and/or adding a metal shield to the element.

With the introduction of small devices mounting high-density components, and the emergence of high-speed signals in these devices, it is necessary to take measures against electromagnetic noise at device jumpers. I-PEX has developed a series of connectors that solve the problem of electromagnetic noise in the connector, with suitable grounding structure and covering layer, including the mounting position of the signal terminal tail with metal shielding ( ZenShield®) . This solution is widely adopted by many customers to prevent electromagnetic interference, especially on high-performance devices equipped with wireless communication functions such as Wi-Fi®, GPS, LTE, etc.

Why choose the I-PEX RF switch connector?

Leading Industry Innovation

The MHF-SW series of I-PEX provides a key Test point for RF switch connectors for wireless devices. MHF-SW series products have three standard sizes: 2.3 × 2.3mm. In addition to providing compatible pin pads, MHF-SW is also very sturdy and reliable. Its unique contacts can prevent contact contamination, ensuring that the connector can maintain good contact performance both when and after being tested as a switch.

Accessory products

Test adapter, test probe, disassembly tool

  1. PEX provides accessories for MHF series products to meet the needs of laboratory testing and mass production testing, such as adapters for VNA testing, laboratory probes, and mass production testing probes. In addition, MHF disassembly and assembly tools are also provided to help laboratories or production sites operate correctly and avoid losses caused by incorrect operations.

I-PEX not only provides the industry’s first standard solutions, but also provides solutions that help save costs, increase productivity, and ensure quality with outstanding precision. Based on this concept, I-PEX leads the design of low-cost and high-volume connectors for 5G equipment. With the commercialization of new bandwidths for 5G, I-PEX introduces high-quality high-frequency solutions to meet the growing demand for smaller and higher-speed connectors.

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.

The design of the 5G connector solution, technique and technical

The deployment of the 5G network and its connection device will put forward higher requirements for the current connector structure. For large quantities of manufacturing, the investment of connectors technology must be balanced between performance, size and cost in order to flourish in the market.

For the application of Gigabitz, the demand for internal and external electromagnetic interference sources (EMI) is a unique challenge for 5G applications. Take 5G mobile phones as an example. It contains multiple subsystems (GPS, Wi-Fi, Honeycomb Sub-6 GHz, and MMWAVE 5G). These subsystems need to work together to minimize the problem of the antenna failure and ensure that the entire subsystem is interactive sex. The millimeter -wave subsystem design for 5G mobile phones is used for effective millimeter wave radiation, and must also be located near the core of the sensitive CPU and the passive antenna. This can cause the problem of electromagnetic compatibility (EMC). There are many solutions to alleviate these problems. However, these solutions are often solutions for CNC processing and have a larger and heavier high shielding coaxial structure. 5G devices used for consumers need to be carefully balanced between performance, size and cost. The 5G UE device must break through the miniaturization limit and generate maximum performance to support these next -generation devices. This trend does not slow down; just as the problem of EMC does not show signs of simplicity.

The combination of micro -band and small wire small radio frequency coaxial connector with cable grounding and wire beam management solution represents a series of gradual EMI solutions. These components are small in size, shielded and low in price, and play a key role in the successful product engineer’s system EMI compliance strategy.

The industry -design industry standard procedures are: achieve performance goals; only after achieving performance goals can we optimize the balance between the size and cost constraints of the component. However, as the frequency continues to inevitably rise, electromagnetic interference suppression and isolation become a key “primary consideration” element at the beginning of the project.

Fortunately, a gradual and effective solution can help reduce the EMI system emissions to acceptable levels.

The first component choice is a low -cost, micro -version board -to -line solution. It provides a basic radio frequency coaxial connection for the PCB micro -band structure. Some radio frequency design can accept micro -band performance, and only occupy 2 layers of metal layers on PCB, thereby reducing the cost and thickness of PCB. However, for higher frequencies, it may not be able to fully suppress EMI radiation to pass compliance.

When the micro -band transmission line is not enough to meet the EMI performance requirements, a 3 -layer -shaped wire transmission structure may be adopted. In these cases, low -back, high -performance RF band -shaped wire connector is a solution.

In a high -performance environment, extra EMI countermeasures must be adopted, and adding SMT grounding clips must be helpful. This is a good low -cost tool that can greatly suppress EMI launch, thereby minimizing the workload of the redo -PCB layout.

By comparison Figure 4 and Figure 7, it is easy to see the improvement of the additional shielding performance of the addition of SMT cables after grounding.

We used ANSYS® HFS ™ S three -dimensional electromagnetic simulation to check the shielding performance of the following four situations.

Case 1 -Preset EMI performance, micro -band transmission line

A micro -band -band transmission wire case was used to use micro -band radio frequency connectors and simulated in HFSS. As shown in the figure, the micro -band structure allows radiation to escape the wave structure.

Case 1B -RF micro -band connector with additional SMT ground clip

With the increase of the SMT grounding clip, EMI radiation is limited to the area around the launch point, and the length of the micro line is significantly reduced. It should also be pointed out that although this will not be completely shielded, it does not require additional ground floor and new circuit board to rotate related costs.

Case 2 -requires a higher level of EMI performance.

Durable value design usually uses a 3 -layer -shaped wire transmission line structure. To this end, a new stamping connector solution came into being. The signal conductor is completely contained in the ground -defined boundary on both sides of the signal layer, which provides the best shielding in the PCB design

Case 2B -Banded line transmission cable with additional SMT ground clip and RF band -shaped wire connector provides the highest degree of EMI suppression

For the extreme sensitive system that requires the highest level EMI shielding inhibitory performance, the addition of the SMT grounding clip further enhances the performance of the RF shielded band -shaped line to a small RF coaxial connector.

in conclusion

Continuous improvement of EMI shielding performance can be used through:

1. Micro -band small radio frequency coaxial coaxial connector

2. Micro -band small radio frequency coaxial coaxial connector+SMT cable ground clip

3. Tape -like small radio frequency coaxial coaxial connector

4. Tape -like small radio frequency coaxial coaxial connector+SMT cable ground clip

With the rise of 5G devices, we have seen the performance pressure of the connection technology. The status of the stamping connector solution has become a challenge brought by 5G: performance, space and cost. The development of this technology will stimulate new solutions that emerge in the future and foreseeable future.

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.