ARRAY ANTENNA DEVICE AND CALIBRATION METHOD THEREFOR

WIPO Patent Application WO/2017/146020

A1

An array antenna device, in which transmission/reception modules each comprising a transmission circuit, a reception circuit, and a transmission/reception switching unit are respectively connected to a plurality of element antennas, causes a distributer to distribute and transmit a signal to be transmitted from a signal generator to the respective transmission circuits, causes a synthesizer to synthesize signals received from the respective reception circuits, and causes a receiver to receive a synthesized signal, while causing a transmission/reception control device to perform control by controlling the amplitudes and phases of signals passing through the transmission circuits and the reception circuits of the respective transmission/reception modules and switching between transmission and reception. When each of the transmission/reception modules is calibrated, the calibration is performed in accordance with a calibration value obtained by correcting a detection signal obtained by detecting the amplitude and phase of the signal received by the receiver by mutually coupled amplitude/phase information in spaces between the respective element antennas.

WO/2022/120092	PHASED ARRAY OVER THE AIR TESTING
WO/2003/065500	APERIODIC ARRAY ANTENNA
JPH1152037	ARRIVAL ANGLE AND DELAY TIME MEASURING DEVICE

YAMAGUCHI SATOSHI (JP)
WATANABE HIKARU (JP)
KURIYAMA TASUKU (JP)
MARUYAMA TAKASHI (JP)
OTSUKA MASATAKA (JP)
MORISHIGE HIDEKI (JP)

PCT/JP2017/006293

August 31, 2017

February 21, 2017

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MITSUBISHI ELECTRIC CORP (JP)

H01Q3/26

JPH09148836A	1997-06-06
JP2010034937A	2010-02-12
JP2014505392A	2014-02-27

See also references of EP 3422478A4

SOGA, Michiharu et al. (JP)

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