Array antenna system and transmit/receive module thereof

An array antenna system comprising:

• a plurality of arrayed element antennas;
• and transmit/receive modules that are respectively connected with those element antennas and that apply a predetermined phase shift amount to transmitting signals to be supplied to the element antennas and to received signals received by the element antennas:
• wherein
• the transmit/receive module comprises:
• first and second signal switches respectively connected with first and second element antennas;
• a transmitting phase shifter for applying a predetermined phase shift amount to the transmitting signal;
• a transmitting amplifier for amplifying the transmitting signal to which the predetermined phase shift amount has been applied by the transmitting phase shifter;
• a distributor for distributing the transmitting signal amplified by the transmitting amplifier to the first and second signal switches;
• first and second receiving amplifiers that are respectively connected to the first and second signal switches to respectively amplify the received signals received by the first and second element antennas;
• and
• first and second receiving phase shifters for applying a predetermined phase shift amount respectively to the received signals amplified by the first and second receiving amplifiers.

A transmit/receive module that is connected with first and second element antennas that apply a predetermined phase shift amount to transmitting signals to be supplied to the element antenna and to received signals received by the element antenna:

• wherein
• the transmit/receive module comprises:
• first and second signal switches connected respectively with the first and the second element antennas;
• a transmitting phase shifter for applying a predetermined phase shift amount to the transmitting signal;
• a transmitting amplifier for amplifying the transmitting signal to which the predetermined phase shift amount is applied by the transmitting phase shifter;
• a distributor for distributing the transmitting signal amplified by the transmitting amplifier to the first and second signal switches;
• first and second receiving amplifiers that are connected to the first and second signal switches to respectively amplify the received signals received by the first and second element antennas;
• and
• first and second receiving phase shifters for applying a predetermined phase shift amount respectively to the received signals amplified by the first and second receiving amplifiers.