ARRAY ANTENNA TRANSMITTER/RECEIVER

摘要

An array antenna transmitter/receiver having a simple structure, a small size, and a light weight and used for perfectly separating and extracting phase correction signals from a radio signal to be transmitted and a received radio signal, both signals passing the same path. A directional coupler (102) has a first connection terminal (201) connected to an antenna element (101), a second connection terminal (202) connected to an antenna duplexer (103), a third connection terminal (203) exhibiting a directivity with respect to the first connection terminal (201) and connected to a phase correction received signal converting section (111), and a fourth connection terminal (204) exhibiting a directivity with respect to the second connection terminal (202) and connected to a phase correction transmission signal converting section (110). The antenna duplexer (103) is connected to the directional coupler (102), a transmission radio section (104), and reception radio section (105) and outputs a radio signal from the transmission radio section (104) to the directional coupler (102) and a radio signal from the directional coupler (102) to the reception radio section (105).