Single-Layer Reflectarray Antennas with Improved Bandwidth by Attaching Phase-Delay Lines

被引：0
|
作者：
Han, Chunhui [1 ,2 ]
Zhang, Yunhua [1 ]
Yang, Qingshan [1 ]
机构：
[1] Chinese Acad Sci, NSSC, Key Lab Microwave Remote Sensing, Beijing, Peoples R China
[2] Univ Chinese Acad Sci, Beijing, Peoples R China
来源：
2016 10TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) | 2016年
关键词：
Broadband antenna; phase-delay line; reflectarray;
D O I：
暂无
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 X-band unit cell structure with improved bandwidth performance for single-layer microstrip reflectarray antenna is proposed. The new element structure consists of two circular rings, each with a pair of gaps, and two phase-delay lines are attached to the outer ring to provide the required phase shift. A 9x9 center-fed reflectarray antenna operating at 10 GHz is designed to validate the broadband performance of the proposed unit cell. Simulated results show 20% 1-dB gain bandwidth and 38.5% 3-dB gain bandwidth. The maximum gain at 10 GIz is 20.1 dB, which is equivalent to 40 % efficiency.
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页数：4
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