As electronic devices continue to develop towards high-speed transmission, thinness, and miniaturization, micro coaxial cable, with its excellent signal transmission performance and flexible structure, is gradually becoming the core internal connection solution for high-end equipment such as medical imaging devices, industrial cameras, vehicle imaging systems, and high-definition cameras. In this process, the shielding layer material and connector selection have become key factors affecting the cable performance.
This article will introduce from three aspects: the types of shielding layer materials, typical shielding structures, and the application of high-performance connectors, and will focus on recommending a connector widely used in extremely thin coaxial cable bundles—the KEL USL20-40S.
Type of shielding layer material for extremely fine coaxial cable束
In the micro coaxial cable, the design of the shielding layer directly determines the cable's anti-interference ability and signal purity. A reasonable shielding structure can not only effectively reduce EMI electromagnetic interference but also maintain low loss and stable waveforms in high-speed signal transmission.
Common shielding layer materials mainly include the following types:
Tin-plated copper woven mesh
The most common shielding form, with good flexibility and excellent shielding effect, is suitable for most high-frequency signal transmission occasions.
Bare copper woven mesh
Superior conductivity, widely used in applications that require extremely high signal purity, such as medical imaging equipment and high-end industrial cameras.
Copper foil + woven dual shielding structure
Copper foil is responsible for reflecting high-frequency interference, woven mesh is used to resist low-frequency noise, and double-layer protection can significantly enhance anti-interference performance, which is suitable for complex electromagnetic environments.
4. Metalized polyester film
Super-thin and lightweight, it is suitable for ultra-micro devices with limited space and compact structures.
Designers can achieve the best balance between performance and size by flexibly combining material lamination and shielding methods to meet different application requirements.
Typical shielding structure of ultra-fine coaxial beam
A high-performance micro coaxial cable usually consists of the following parts:
① Inner conductor: High-purity copper wire responsible for signal transmission.
Insulation layer: serves the function of signal isolation and dielectric protection.
③ Shielding layer: effectively resist external electromagnetic interference, ensure signal integrity.
④ External sheath: Protects the internal structure, enhances mechanical strength and durability.
Among them, the shielding layer can be made by different processes such as copper wire weaving, aluminum foil, and metallized film. The higher the shielding coverage and the better the continuity of the conductive layer, the stronger its anti-interference ability will be. For high-speed digital signal applications, high-density weaving or double shielding structure is particularly important, which can significantly reduce crosstalk and signal attenuation.
Section 3: Introduction to KEL USL20-40S Connector
In the assembly and signal transmission process of extremely fine coaxial cable assemblies, the selection of connectors is also crucial.
KEL USL20-40S is a high-performance connector specifically designed for micro coaxial cable, featuring the following notable characteristics:
1. Support for multiple specifications: Offering various pin specifications from 20pin to 40pin to meet the interface needs of different devices;
Miniaturized structural design: Perfectly fits extremely thin coaxial cable bundles, achieving high-density wiring.
3. High stability clip locking mechanism: prevents connection loosening or falling off.
Excellent grounding and shielding performance: Ensures stable and reliable signal transmission, enhancing EMI protection level.
With excellent anti-interference performance and compact design, KEL USL20-40S is widely used in industrial cameras, medical diagnostic equipment, vehicle image modules, and high-definition video systems, and is one of the ideal high-speed connection solutions for current high-end equipment.
With the continuous increase in the miniaturization of equipment and the demand for high-speed signal transmission, the market demand for micro coaxial cable (extremely thin coaxial cable) has been growing. Choosing the appropriate shielding material structure and high-reliability connectors can not only effectively reduce signal interference but also greatly enhance the overall system's transmission performance and stability. KEL USL20-40S, with its compact design, excellent grounding performance, and excellent shielding effect, has become a favored connection solution in high-end electronic equipment.
I amSuzhou Huichengyuan Electronic Technology Co., Ltd.Long-term focus on the design and customization of high-speed signal cables and ultra-fine coaxial cables, committed to providing stable and reliable high-speed interconnect solutions. For more technical information or customization plans, please contact:Manager Yin 18913280527 (WeChat number the same)。
