What Is a Coaxial Cable?

A coaxial line (coaxial cable) is a guided transmission system composed of two concentric cylindrical conductors. The space between the inner and outer conductors is filled with air or a high-frequency dielectric, forming a broadband microwave transmission line. Coaxial cables are widely used in communication and audio/video transmission industries and are very common components.

However, because coaxial cables involve specialized knowledge in the RF and microwave field, their material composition and structural design can vary significantly depending on different performance requirements. These differences are the result of a balance between performance needs and cost considerations. As a result, many people do not fully understand the various performance characteristics of coaxial cables. Without this understanding, it is difficult to select the correct cable, which often leads to purchasing an unsuitable coaxial cable for the application.

About Kinghelm
Kinghelm is a high-tech enterprise specializing in RF and connectivity solutions. The company offers a wide range of products, including Beidou/GPS antennas, Wi-Fi, Bluetooth, NB-IoT, LORA, Zigbee antennas, RF cables and connectors, board-to-board and plug-in connectors, switches, terminals, and customized automotive and industrial components. With over 17 years of experience, Kinghelm serves industries such as automotive, telecommunications, industrial automation, medical devices, and consumer electronics. Known for durable, reliable components that meet international standards, Kinghelm supports applications ranging from renewable energy to IoT devices.