Title:
ARRAY ANTENNA DEVICE AND CALIBRATION-MONITORING PROGRAM
Document Type and Number:
Japanese Patent JP2023066109
Kind Code:
A
Abstract:
To facilitate estimating the absolute value of amplitude of a transmit signal of each individual antenna element in order to confirm performance as a transmitter, even when the number of antenna elements constituting an array antenna device is large.SOLUTION: The present disclosure is an array antenna device A comprising: a reflection coefficient acquisition unit 11 for acquiring the information of a coefficient of input-side reflection to a monitoring synthesis-distribution unit 9, with regard to a reflection signal from the monitoring synthesis-distribution unit 9 through reciprocation in respective monitoring paths 8-1 thru 8-N to the monitoring synthesis-distribution unit 9, when switched to a plurality of connection patterns, as a connection pattern of whether respective monitoring paths 8-1 thru 8-N are connected to short-circuiting, open-circuiting or termination; and an absolute amplitude value estimation unit 12 for estimating the absolute value of amplitude of transmit signals of respective antenna elements 6-1 thru 6-N, on the basis of the information of the reflection coefficient in the plurality of connection patterns.SELECTED DRAWING: Figure 2
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Inventors:
KATSUMOTO TATSUYA
Application Number:
JP2021176624A
Publication Date:
May 15, 2023
Filing Date:
October 28, 2021
Export Citation:
Assignee:
JAPAN RADIO CO LTD
International Classes:
G01S7/40; G01S7/02; H01Q3/26; H01Q21/06
Attorney, Agent or Firm:
Kenji Okada
Masaaki Hata
Mari Tanaka
Katsuhiro Imashita
Masaaki Hata
Mari Tanaka
Katsuhiro Imashita