350-520MHz directional coupler with N Female connector 5db 6db 7db 10db 15db 20db coaxial coupler
A coupler is a device used to connect a cable to an GSM PCB Antenna. Its purpose is to transfer a radio signal from a cable to an 3G/4G PCB Antenna, and to transmit the signal received from the 2.4g pcb antenna back to the cable. When using couplers and 2.4G FPC antennas together, select appropriate devices and parameters based on actual conditions, and test and debug the devices to ensure that they work properly. In addition, pay attention to the installation location and environment of the device to avoid external interference and influence.