PHASED ARRAY TRANSMISSION DEVICE

摘要

Transmission outputs of a plurality of transmission branches (101, 102) are extracted by coupler sections (161, 162). Branch detectors (121, 122) respectively detect the levels of the extracted signals of the respective transmission branches and a combination detector (130) detects an output obtained by combining two extracted outputs from the transmission branches by a signal combining section (110). An amplitude error is detected and corrected by comparing output levels of the branch detectors (121, 122), and a phase error is detected and corrected by an output level of the combination detector (130).

主权项

1. A phased array transmission device comprising:
a first transmission branch and a second transmission branch, each including: a transmitter, configured to transmit a transmission signal in a wireless frequency; a phase adjuster, configured to adjust a phase of the transmission signal; an amplitude adjuster, configured to adjust an amplitude of the transmission signal; an antenna section, configured to radiate an output signal from the transmitter into a space; and a coupler section, configured to extract a part of an output from the transmitter; a first branch detector and a second branch detector, configured to detect levels of outputs from the coupler sections of the first and second transmission branches, respectively; a signal combining section, configured to combine outputs from the coupler sections of the first and second transmission branches; a combination detector, configured to detect a level of an output from the signal combining section; an amplitude controller, configured to control the amplitude adjuster according to the outputs detected by the first and second branch detectors; and a phase controller, configured to control the phase adjuster according to the output detected by the combination detector.