Coupler Integrated Microstrip Patch Linear Phased Array for Self-Calibration

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In this letter, a coupler integrated microstrip patch linear phased array is proposed as a new self-calibration system. The proposed coupler placed along the edge of the microstrip patch antenna is weakly coupled to the antenna array. This allows self-calibration without affecting the radiation performance of the antenna array. A 1 x 4 coupler integrated patch linear phased array and a beamformer operating at 5.8 GHz were implemented to verify the new self-calibration system. The measurement result using the self-calibration is very close to the result with a vector network analyzer (VNA). The coupler integrated patch linear phased array proposed as a new self-calibration system has 0.22 dB root-mean-square error (RMSE) magnitude and 1.2 degrees RMSE phase. The calibration method using a proposed antenna array is expected to on-site calibration.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2020-09
Language
English
Article Type
Article
Citation

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, v.19, no.9, pp.1615 - 1619

ISSN
1536-1225
DOI
10.1109/LAWP.2020.3011862
URI
http://hdl.handle.net/10203/281893
Appears in Collection
EE-Journal Papers(저널논문)
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