An X-Band Reflectarray With Novel Elements and Enhanced Bandwidth

被引：28
|
作者：
Chen, Qing-Yong [1 ]
Qu, Shi-Wei [1 ]
Li, Jian-Feng [2 ]
Chen, Qiang [2 ]
Xia, Ming-Yao [1 ]
机构：
[1] Univ Elect Sci & Technol China UESTC, Sch Elect Engn, Chengdu 61173, Peoples R China
[2] Tohoku Univ, Dept Elect & Commun Engn, Sendai, Miyagi 9808579, Japan
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2013年 / 12卷
关键词：
Bandwidth enhancement; optimization methods; reflectarrays; BROAD-BAND; LOOP ELEMENTS; PRINTED REFLECTARRAYS; DESIGN; CROSS;
D O I：
10.1109/LAWP.2013.2249652
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 novel single-layer reflectarray element with an I-shaped dipole encompassed by a circular ring, showing smooth phase-frequency response, is proposed in this letter. Based on this element, an optimization method is adopted to match the desired phase delays at two edge frequencies so as to get fixed phase difference between two adjacent elements in the optimized band. A low-profile X-band 6 x 10-element reflectarray with a scattering angle of 30 degrees for normal incidence of plane waves is designed and fabricated. Simulations and measurements show that a bandwidth of 22.3% for 3 dB directivity dropping and 15.2% for -10 dB sidelobe level (SLL) can be achieved.
引用
收藏
页码：317 / 320
页数：4
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