Dual-Polarized, Dual-Band, and Aperture-Shared Synthesis Method for Phased Array Applications

被引:18
作者
Xiao, Runjun [1 ]
Tang, Ming-Chun [2 ]
Shi, Yu [1 ]
Ding, Zhuo-Fu [3 ]
Li, Mei [2 ]
Wei, Xubo [1 ]
机构
[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 611731, Peoples R China
[2] Chongqing Univ, Coll Microelect & Commun Engn, Chongqing Key Lab Space Informat Network & Intell, Chongqing 400044, Peoples R China
[3] RML Technol Co Ltd, Chengdu 610000, Peoples R China
基金
中国国家自然科学基金;
关键词
Dual-band; dual-polarized; phased arrays; shared-aperture arrays; sparse arrays; DIFFERENTIAL EVOLUTION STRATEGY; ANTENNA-ARRAY;
D O I
10.1109/TAP.2021.3138467
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A dual-band and dual-polarized shared-aperture synthesis method for phased array applications is proposed. Dual-polarized slot-coupled microstrip patch elements operating in the Ku-band are arranged in a regular array configuration. Two orthogonal probes share a common radiating patch structure and are fed by two H-shaped coupling slots. Sidewall metalized cavity waveguide elements operating in the W-band are fed by a substrate-integrated waveguide and arranged in a sparse array configuration, which is based on an optimization algorithm proposed in this work. Furthermore, the feeding locations are regularly determined, which is beneficial to transceiver/receiver design, thus reducing the cost of a phased array system. By exploiting this compact array topology and optimization algorithm, two-phased arrays with a large frequency ratio employing a shared aperture simultaneously exhibit wide-angle scanning properties. A 64-element array is designed, fabricated, and measured. The measurement results show that the Ku-band dual-polarized antenna exhibits a wide impedance bandwidth of 20% in the 14.3-17.6 GHz frequency range for two orthogonal polarizations and high isolation (>20 dB) between the feeding ports. The W-band antenna exhibits a 5.4% fractional impedance bandwidth covering 90-95 GHz frequency range with a +/- 45 degrees scanning angle in the E- and H-planes.
引用
收藏
页码:4896 / 4901
页数:6
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