How does an ultra-fine coaxial cable help autonomous driving cameras achieve high-frequency stable transmission?

In the field of high-speed signal transmission and interconnection of miniature devices, the **extremely thin coaxial cable (Micro Coaxial Cable)** has become an important choice for high-frequency interconnection due to its compact structure and excellent shielding performance. With the development of autonomous driving technology, the demand for high-speed image and control data transmission in vehicles has surged dramatically. How to reduce signal loss while maintaining the advantage of small size has become a key issue that engineers must face in system design.

High frequency and high bandwidth transmission
In autonomous driving systems, the camera is the "visual center," and the extremely thin coaxial cable is the data channel that connects the camera to the central processing unit (ECU).
This type of wire material can support extremely high frequency and wideband transmission, with some design frequencies reaching up to tens of GHz, meeting the real-time transmission needs of high-definition video and multi-channel image streams.
For example, the new generation mini high-frequency coaxial connector can support signal transmission frequencies up to 20GHz, ensuring that the autonomous driving system maintains low latency and high stability while processing multi-path high-resolution images.
The miniaturized structure brings advantages in terms of space and weight.
Compared with traditional FAKRA interfaces, micro coaxial cables have a finer diameter and lighter weight, offering significant advantages in limited vehicle-mounted spaces.
Partial manufacturer's actual test data shows that using a mini coaxial system can save about 80% of installation space.
In cases where cameras are installed in narrow areas such as door panels, rearview mirrors, or the roof, this lightweight and high-density wiring characteristic is particularly important, as it can significantly optimize the cable layout inside the vehicle.

Excellent signal integrity and electromagnetic compatibility performance
The ultra-fine coaxial cable has precise impedance control (50Ω or 75Ω), which can effectively reduce high-frequency reflections and signal attenuation, maintaining the clarity and stability of image transmission.
Meanwhile, the multi-layer metal shielding structure can resist the complex electromagnetic interference (EMI) inside the vehicle, ensuring signal integrity in high vibration and high noise environments.
This is crucial for core components such as autonomous driving cameras, radars, and perception modules.

Four, advantages of modularization and automated production
Compared with traditional wire harnesses, micro coax has the characteristics of modularization and automated assembly, and can achieve high-efficiency manufacturing in batch production.
The process of automatic peeling, welding, and inspection significantly reduces human error, not only improving consistency but also lowering production costs.
This provides a more flexible and efficient harness solution for modern automotive manufacturing.

Five, intelligent interconnection support for the future
With the continuous upgrade of vehicle network systems, ultra-fine coaxial cables can deeply integrate with communication architectures such as CAN bus, Ethernet, V2X, and OTA, supporting high-speed interconnection and low-latency interaction of vehicle systems.
This scalability makes it an important part of the future intelligent vehicle network, providing solid support for the continuous evolution of advanced driving assistance (ADAS) and autonomous driving functions.

The extremely thin coaxial cable bundle in autonomous driving camera systems is no longer just a "transmission medium," but a crucial link to ensure the efficient and stable operation of the vehicle's visual system.
It is becoming the core trend of intelligent vehicle harness solutions with four major advantages: high-frequency transmission capability, space-saving, reliable signal, and production flexibility.
I am[Suzhou Huichengyuan Electronic], focusing on the research and development and customization of high-speed signal cables and extremely fine coaxial cables, committed to providing customers with high-performance and reliable interconnect products.
Welcome to contact us for related needs or for further information:Manager Yin 18913280527 (WeChat number)。