How is signal transmission loss controlled in RF cables?

(1) Select low-loss coaxial cable materials, matching the cable type to the operating frequency band; for high-frequency applications, low-loss cables are preferred.

(2) Strictly control the crimping/soldering process between cable and connectors to ensure reliable inner and outer conductor connections and minimize joint loss.

(3) Control the minimum bend radius of the cable to avoid performance degradation due to excessive bending during design and production.

(4) Maintain strict 50 Ω impedance matching at the connector interface to reduce reflection-induced equivalent loss.

(5) Test finished products with a network analyzer for insertion loss and reject out-of-spec units.

(6) For long cable runs, evaluate the appropriate cable length with the customer and, if necessary, choose thicker low-loss cables.

About Kinghelm

Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples.