A METHOD FOR PLANAR PHASED ARRAY CALIBRATION

A METHOD FOR PLANAR PHASED ARRAY CALIBRATION

A method is proposed to calibrate a planar phased array by reconstructing its aperture distribution, in which the aperture distribution is superposed within the physical range of radiating element. Consequently, the calibration coefficients are solved for the linear relationship between the superpos...

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Veröffentlicht in:Progress in electromagnetics research. Letters 2020-01, Vol.94, p.19-25
Hauptverfasser: Lu, Yangyi, Zhou, Lei, Cui, Mantang, Du, Xiaodong, Hu, Yongjun
Format: Artikel
Sprache:eng
Schlagworte:
Calibration
Control
Electric waves
Electromagnetic radiation
Electromagnetic waves
Methods
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Zusammenfassung:A method is proposed to calibrate a planar phased array by reconstructing its aperture distribution, in which the aperture distribution is superposed within the physical range of radiating element. Consequently, the calibration coefficients are solved for the linear relationship between the superposed aperture distribution and elements' excitations. The calibration accuracy that is influenced by resolution of aperture distribution is also discussed in this paper. In practice, the reconstruction procedure of aperture distribution is based on the plane wave spectrum (PWS) theory, utilizing FFT and IFFT techniques. This method turns out to be valid by experiment.
ISSN:1937-6480
1937-6480
DOI:10.2528/PIERL20090106