The Secret to Making Radar "Smarter": How Ultra-Fine Coaxial Beam Ensures Stable High-Frequency Signal Transmission

As intelligent driving and autonomous driving technologies continue to evolve, millimeter wave radar has become an indispensable core component of the vehicle perception system. It achieves precise detection and distance measurement of the surrounding environment by emitting and receiving electromagnetic waves in high frequency bands such as 77GHz. To maintain stability and accuracy of the radar under various complex conditions, the reliability of internal signal transmission is crucial, and the "key role" that cannot be overlooked is the extremely fine coaxial cable束 (Micro Coaxial Cable).

The core function of ultra-fine coaxial cable束
In millimeter wave radar modules, it is necessary to transmit high-frequency radio frequency signals and high-speed digital signals at high speed. Any slight interference or reflection in the signal chain will lead to a decrease in the radar's detection accuracy. The application of extremely thin coaxial cable bundles is precisely to solve these problems:
High impedance consistency: Ensures that the signal between the radar chip and the antenna module remains intact during transmission, reducing reflection and distortion.
Low-loss transmission: It can effectively suppress signal attenuation at high frequencies such as 77GHz, ensuring stable output of radar ranging and identification performance.
Structure compact and light: The wire diameter is usually between 0.3mm and 0.5mm, which is very suitable for the miniaturization design requirements of vehicle radar, saving space for internal structure layout.

Two, challenges of adapting to complex vehicle environments
The vehicle radar needs to operate for a long time under extreme conditions, facing challenges such as high temperatures, low temperatures, vibration, and strong electromagnetic interference. The ultra-fine coaxial cable束 adopts a high-flexibility insulating material and a high-density shielding layer structure in design, which not only allows for flexible wiring in limited spaces but also effectively enhances the anti-interference capability.
Regardless of heavy rain, snow, or complex driving environments like tunnels and at night, the harness ensures stable transmission of radar signals, making the detection results more accurate and reliable, thus enhancing the overall safety performance of the autonomous driving system.

Three, Future Development Trends
With the iteration and upgrade of intelligent driving technology, the requirements for the quality of signal transmission of millimeter-wave radar are also continuously improving. The future ultra-fine coaxial cable bundles will develop in the following directions:
Smaller diameter: to meet the trend of further miniaturization of radar modules.
Higher frequency band support: Providing support for higher resolution and longer detection distance.
Higher shielding performance: reduce external interference and ensure signal purity.
These technical optimizations will continue to make ultra-thin coaxial cables a key component for enhancing radar performance, providing higher safety guarantees for advanced driver-assistance systems (ADAS).
The ultra-fine coaxial cable束 is the core foundation for high-speed signal transmission inside millimeter-wave radar. In the invisible corners, it silently ensures the stable operation and precise detection of the radar, being the true "invisible hero" in the intelligent driving safety system.

I amSuzhou Huichengyuan ElectronicFocusing on the research and development, as well as customization, of high-speed signal cables and ultra-fine coaxial cables, committed to providing customers with high stability and reliability high-speed interconnection solutions. If you have relevant needs or wish to learn more, please contact:Manager Yin 18913280527 (WeChat same number)。