A Mechanically Reconfigurable Reflectarray With Slotted Patches of Tunable Height

作者：Yang, Xue^*; Xu, Shenheng; Yang, Fan; Li, Maokun; Fang, Houfei; Hou, Yangqing; Jiang, Shuidong; Liu, Lei

来源：IEEE Antennas and Wireless Propagation Letters, 2018, 17(4): 555-558.

DOI：10.1109/LAWP.2018.2802701

• Antenna
• mechanical control
• phased array
• reconfigurable
• reflectarray
• tunable height

Design of a C-band reconfigurable reflectarray antenna (RRA) is presented. The RRA element consists of a fixed upper patch and a tunable slotted patch. By mechanically controlling the height of the slotted patch, the RRA element has a phase shift range of 324 degrees with small element loss. A prototype with 408 elements is designed and fabricated. The measurements show that the gain of the 20 degrees scanned beam is 25.7 dB and the aperture efficiency is 48.6%. The large-angle beam-scanning capability of the RRA is also verified within +/- 60 degrees angular range, and well-defined scanned beams are obtained with maximum scan gain loss of 3.4 dB.

• 出版日期2018-4
• 单位清华大学