The Antidisturbance Method of Ultra-Fine Coaxial Lines: Signal Guardians Behind High-End Equipment

As today's electronic products continue to trend towards thinness and high-speed, ultra-fine coaxial cables (Micro Coaxial Cable) are quietly becoming an important part of internal connections in devices such as smartphones, drones, medical equipment, vehicle electronics, and high-definition cameras. As the "highway" for signal transmission, how strong is its anti-interference performance? Today, we will delve into this issue in depth.

Why does the harness need to have anti-interference capabilities?
The internal structure of modern electronic devices is complex, with various signal lines, ribbon cables, and coaxial cables densely distributed. Especially in smartphones, automotive electronics, and medical imaging equipment, multiple functional modules often work simultaneously, generating a large amount of electromagnetic waves and radio frequency signals.
If there is a lack of good anti-interference design, it is prone to problems such as signal interference, data packet loss, image distortion, and even incorrect device operation.
Common interference sources include:
RF signal interference: electromagnetic waves emitted from Wi-Fi, 5G, Bluetooth, etc.
Power noise: High-frequency noise generated by the motherboard, motor, or LED drive circuit.
Cable Cross-Interference: Electromagnetic induction interference between high-speed signals.
Once interference is too strong, it not only affects the stability of signal transmission but may also damage the safety and user experience of the device. Therefore, choosing a harness with strong anti-interference ability is particularly crucial in high-speed and high-frequency environments.

How strong is the anti-interference ability of ultra-fine coaxial lines?
The anti-interference performance of the extremely fine coaxial cable mainly originates from its unique coaxial structure and efficient shielding design.
High-density woven copper wire + aluminum foil composite shielding layer is usually adopted, which can effectively resist external electromagnetic waves (EMI) and radio frequency interference (RFI).
Core strengths are as follows:
High shielding effectiveness: The shielding layer effectively isolates the external electromagnetic environment, prevents interference from other electronic modules to the internal signals, ensuring the purity of the signals.
Maintain signal integrity: In high-speed high-frequency transmission, signals are prone to attenuation and crosstalk, while the coaxial structure can provide an "independent protection channel", significantly reducing noise interference and reflection.
  Excellent anti-interference performance in actual testing: Taking the common 0.3mm ultra-fine coaxial cable as an example, its shielding effectiveness can reach >-60dB@1GHz, far exceeding the anti-interference performance of ordinary ribbon cables or FPCs.

Why do high-end devices prefer ultra-fine coaxial cables?
In high-end intelligent terminals and precision electronic devices, the internal space is often extremely compact, yet it requires high resolution, high-speed signal transmission, and low interference performance.
For example:
  Huawei foldable smartphone camera module
High-end notebook display
Face ID module and VR headset
Medical endoscopes and other high-precision equipment
In these application scenarios, traditional wiring has become difficult to meet the requirements. The ultra-fine coaxial cable, with its excellent anti-interference ability, flexibility, and high signal fidelity, has become the ideal choice.

Do not underestimate this slender cable finer than hair; it is the key to high-speed, stable, and anti-interference transmission for high-end electronic devices. In the design of future smart devices, ultra-thin coaxial cables will undoubtedly continue to play the indispensable role of "signal guardian."
We have been focusing on the design and customization of high-speed signal cable harnesses and ultra-fine coaxial cable harnesses for a long time, committed to providing stable and reliable high-speed interconnect solutions. If you have any related needs or would like to learn more, please contact: Manager Yin.18913280527 (WeChat number)。