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A Novel Single-Layer Unit Structure for Broadband Reflectarray Antenna
Han, Chunhui; Zhang, Yunhua; Yang, Qingshan; Han, CH (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Department微波遥感部
Source PublicationIEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
2017
Volume16Pages:681-684
ISSN1536-1225
Language英语
KeywordBandwidth Enhancement Phase-delay Lines Reflectarray Antenna Single-layer Unit Cell
AbstractA novel X-band single-layer unit-cell structure with enhanced bandwidth for linearly polarized microstrip reflectarray antenna is proposed. The unit-cell structure is composed of two circular rings, each with a pair of gaps that are orthogonally placed, and two identical phase-delay lines attached to the outer circular ring. With this novel structure, a linear phase response ranging about 550 degrees is achieved by varying the length of the phase-delay line. An offset-fed reflectarray antenna composed of 277 elements forming an octagon-shape aperture is designed, fabricated, and measured to verify the broadband characteristic of the proposed unit cell. Measurement results show that 20% 1-dB gain bandwidth is realized. Moreover, the maximum gain at 10 GHz is about 26.38 dBi, which means about 51.3% efficiency is achieved. At the same time, the sidelobe level and cross polarization for E-plane are also measured which are below -17.5 and -26 dB, respectively.
Indexed BySCI ; EI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5838
Collection微波遥感部
Corresponding AuthorHan, CH (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Han, Chunhui,Zhang, Yunhua,Yang, Qingshan,et al. A Novel Single-Layer Unit Structure for Broadband Reflectarray Antenna[J]. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS,2017,16:681-684.
APA Han, Chunhui,Zhang, Yunhua,Yang, Qingshan,&Han, CH .(2017).A Novel Single-Layer Unit Structure for Broadband Reflectarray Antenna.IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS,16,681-684.
MLA Han, Chunhui,et al."A Novel Single-Layer Unit Structure for Broadband Reflectarray Antenna".IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS 16(2017):681-684.
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