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PLANAR PHASED ARRAY CALIBRATION BASED ON NEAR-FIELD MEASUREMENT SYSTEM
Author(s) -
Rui Long,
Jun Yang
Publication year - 2017
Publication title -
progress in electromagnetics research c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 34
ISSN - 1937-8718
DOI - 10.2528/pierc16112004
Subject(s) - planar , calibration , phased array , field (mathematics) , phased array optics , field programmable gate array , physics , computer science , engineering , electrical engineering , computer hardware , mathematics , computer graphics (images) , quantum mechanics , antenna (radio) , pure mathematics
Matrix method for phased array calibration is an excitation reconstruction method by solving the linear equations based on the linear relationship between the measured near-field data and element excitations. In this paper, we propose a modified matrix method, in which the phased array model is simplified, to measure the element excitations of planar phased array. Our method reduces measurement time greatly at the cost of introducing some calibration errors. The introduced calibration errors can be minimized with the array excitation strategy proposed in this paper. Experimental results validate the effectiveness of our methods in calibrating planar phased arrays.

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