Patent ID: 8055210

Claim:
A transceiver for radio-frequency communication comprising: a waveguide, including a first winding branch channel, and a second winding branch channel, wherein the waveguide is configured for receiving and transmitting radio-frequency signals; a transmitting port connected to an end of the first winding branch channel of the waveguide and transmitting the radio-frequency signals to the waveguide; a receiving port connected to an end of the second winding branch channel of the waveguide and receiving the radio-frequency signals from the waveguide; and a receiver load termination connected to the waveguide and removing the vertical polarization components of the receiving radio-frequency signals, wherein the receiver load termination includes an absorption material to remove the vertical reflecting signal of the receiving radio-frequency signal in the receiver load termination; wherein the receiver load termination includes a filtering unit to reduce the energy of the transmitting radio-frequency signals entering the receiver load termination, and the filtering unit is a band-pass filter formed by a plane and a plurality of parallel-raised ridges thereon.