| Autor: |
Doo-Soo Kim, Il-Tak Han, Woo-Sung Kim, Jin-Mo Yang, Yong-Hee Han, Kyung-Tae Kim |
| Předmět: |
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| Zdroj: |
Progress in Electromagnetics Research M; 2020, Vol. 90, p59-67, 9p |
| Abstrakt: |
This paper specifies optimization of a low active reflection coefficient (ARC) array element with a cavity-backed microstrip patch (CBMP) using a genetic algorithm (GA) at wide-band and 2-dimensional (2D) wide angle. Both the GA implemented with a user-defined MATLAB code and a 3-dimensional (3D) full-wave electromagnetic simulator CST MWS are simulated with a real-time direct link. An optimization method using not a traditional unit cell or a small array but a 15×15 finite array structure is proposed to apply to a large-scale array antenna. The CBMP array antenna to meet a design goal of a max ARC is optimally designed at equally divided 9 frequencies and 11374 beam angles for S-band 400 MHz operating frequency bandwidth and beam scan coverage (Az = −60° ∼ +60°, El = −3° ∼ +90°). Measurement results show that a prototype and a full-scale array antenna have low ARC below −8.1 dB and −6.9 dB, respectively for required wide frequency bandwidth and beam scan coverage. It is confirmed that the proposed method is a good solution for optimizing a large-scale array antenna. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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