The duplexer is used for mobile communications and as an unattended repeater in the field, which itself determines its use environment and working conditions. SGQ series duplexers are used for duplex mobile radio or fixed duplex radio. Use the same antenna for both reception and transmission. Due to the use of profiles and special aging processes, the insertion loss is low, the reflection is small, and the temperature drift is small.
The duplexer not only needs to couple the weak receiving signal into it, but also feeds the larger transmitting power to the antenna, and requires the two to complete their functions without affecting each other. The general duplexer consists of a spiral cavity. Due to its high operating frequency and large influence on the distribution parameters, it is often made into a sealed casing. Each signal feeder must use a coaxial cable cavity with a good shielding effect. Finish.