IEICE Electronics Express | |
A single layer delay-lines based reflectarray for X-band applications | |
Muhammad Farhan Shafique1  Rashid Saleem2  Tayyab Shabbir2  Sabih Ur Rehman3  | |
[1] Center for Advanced Studies in Telecommunication (CAST), COMSATS Institute of Information Technology;Department of Telecommunication Engineering, University of Engineering and Technology, Taxila;School of Computing and Mathematics, Charles Sturt University | |
关键词: reflectarray; equivalent circuit modeling; high gain; phase range; | |
DOI : 10.1587/elex.14.20171150 | |
学科分类:电子、光学、磁材料 | |
来源: Denshi Jouhou Tsuushin Gakkai | |
【 摘 要 】
This paper presents a single-layer delay-lines based reflectarray for X-band applications. The proposed design contains an octagonal-shaped patch with T-shape delay-lines. A phase range of 500° is realized by using T-shape delay-lines. A stable phase range is achieved for TE and TM modes at 0°, 15° and 30° incident angles. An equivalent circuit model is used to investigate the resonant property of the proposed reflectarray unit element. A 21 à 21 elements reflectarray is designed, fabricated and measured on an FR-4 substrate. The proposed design provides 1-dB gain bandwidth of 18.5% and 3-dB gain bandwidth of 30%. Measured gain of 26 dBi at 10 GHz with aperture efficiency of 65% is obtained. The proposed reflectarray configuration have side-lobe-levels less than â25 dB.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO201902194839519ZK.pdf | 2616KB | download |