Key to shielding ultra-fine coaxial cable束 and I-PEX 20680-020T-01 high-frequency connection scheme

With the rapid development of 5G communication, high-definition display, vehicle-mounted cameras, and VR/AR devices, the frequency and speed of data transmission are continuously increasing. For high-speed signal systems, the shielding performance of the cable harness has become a key factor determining signal stability and equipment reliability. This article will start from the shielding design of ultra-fine coaxial cable harnesses, discuss the necessity of its application in high-frequency environments, and introduce the high-performance connector——I-PEX 20680-020T-01 that is配套 used.


 

Why ultra-fine coaxial cable bundles require high shielding performance

In high-speed signal transmission scenarios such as vehicle-mounted cameras, 5G modules, notebook cameras, and medical imaging equipment, the shielding performance of extremely thin coaxial cable bundles directly determines the quality of signal transmission and system reliability. The main reasons include the following four points:
Resist external electromagnetic interference (EMI)
Modern electronic devices have high internal integration, with power lines, signal lines, and RF lines densely arranged, and there are various electromagnetic radiation sources. If the shielding performance is insufficient, the cable assembly is easily subjected to external EMI interference, leading to blurred images, frame jumps, data packet loss, and even equipment failure. Especially in high-speed interfaces such as 5G, USB3.1, MIPI D-PHY, interference can directly cause signal attenuation and waveform distortion.
Prevent signal leakage from itself and avoid crosstalk
High-speed differential or high-frequency signals are mostly transmitted through extremely thin coaxial cables, which themselves will generate electromagnetic radiation. If the shielding layer design is not perfect, signal leakage will cause crosstalk to adjacent lines, produce noise, reduce EMC performance, and even trigger misoperation of other modules.
Ensure signal integrity and anti-attenuation capability
In the process of high-speed signal transmission, skin effect and medium loss are inevitable. If external interference is superimposed, the signal amplitude will further attenuate. High shielding performance can suppress noise interference, maintain signal purity, and thus ensure that the error rate is reduced and the signal integrity is improved.
Comply with EMC regulations and customer certification requirements
  The automotive, medical, and communication industries have strict requirements for electromagnetic compatibility. High-shielding cables can help equipment pass relevant standards tests such as CISPR 25, EN55032, EN55035, FCC, and CE, ensuring the overall EMC performance and market access of the entire machine.


 

I-PEX 20680-020T-01 Connector Introduction

I-PEX 20680-020T-01 is a high-performance connector specifically designed for ultra-thin coaxial cable bundles, featuring the following characteristics:
Adopting a 0.4mm pitch, 20Pin design, ultra-small in size, suitable for mini camera module and high-density systems.
Supports 5G, MIPI D-PHY/C-PHY, USB3.1 and other high-speed signal standards, meeting the needs of high-frequency data transmission.
The optimized shielding structure design has excellent anti-interference and signal integrity performance.
The insertion and extraction life reaches up to 30 times, with excellent reliability, suitable for high-frequency maintenance or plug-and-play application scenarios.
I-PEX 20680-020T-01 is widely used in in-vehicle image systems, notebook cameras, medical equipment, and VR/AR modules, and is a typical representative of high-performance ultra-thin coaxial connection solutions.



 

III. Collaborative Advantages with High-quality Connectors

The high shielding performance of ultra-fine coaxial cable bundles is the foundation for the stable operation of high-speed signal systems; while the structural design of the connector determines the integrity of signal contact and transmission. When used together, for example, with I-PEX 20680-020T-01 matched with ultra-fine coaxial cable bundles, they can effectively suppress interference in complex electromagnetic environments, ensuring stable and low-loss transmission of high-speed signals. In the future trend of high-frequency applications, this kind of cable bundle and connector matching solution will become a key interconnection choice in fields such as industrial vision, 5G communication, and automotive systems.




The shielding performance of extremely fine coaxial cable束 is not only related to signal quality but also determines the stability and reliability of the entire machine. When paired with high-performance connectors like the I-PEX 20680-020T-01, it can maintain the complete transmission of high-speed data in complex electromagnetic environments.

If you are looking for I-PEX series ultra-thin coaxial connector cable assembly solutions, or hope to obtain customized products with high shielding, high flexibility, and high stability, please feel free to leave a message or contact us. I amSuzhou Huichengyuan Electronic TechnologyLong-term focus on the design and customization of high-speed signal cables and ultra-fine coaxial cables, committed to providing customers with stable and reliable high-speed interconnection solutions. For more product information or customization services, please contact:Manager Zhang 18913228573 (WeChat same number)。