Journal
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume 68, Issue 9, Pages 6806-6810Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2020.2975265
Keywords
Reflector antennas; PIN photodiodes; Reflection; Transmitting antennas; Feeds; Antenna arrays; Beam scanning; p-i-n diode; reconfigurable antenna; reconfigurable folded reflectarray antenna; reconfigurable transmitarray
Funding
- National Natural Science Foundation of China (NSFC) [11674111, 61575070, 11750110426]
- Natural Science Foundation of Fujian Province, China [2017J01003, 2017J01115]
- Foreign Cooperation Projects of Quanzhou City Science and Technology Program of China [2017T006]
- Subsidized Projects for Postgraduates' Innovative Fund in Scientific Research of Huaqiao University [1511301030, 17013082024, 17013082018, 18013082021, 18013082025]
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In this communication, an electronically reconfigurable folded reflectarray antenna (ERFRA), which includes 14 x 14 reflecting elements and features a fully planar compact configuration and wide-angle beam-scanning performance, was developed, fabricated, and tested. A novel reflecting element that is able to carry out cross-polarization rotation and electronically reconfigurable 1 bit compensation phases was first developed. After experimentally demonstrating its feasibility, the new reflecting element was then applied to the design of a 14 x 14 ERFRA, with a planar feed in the center of the reflectarray and a beam-control system based on the field-programmable gate array (FPGA). The measurements of the fabricated ERFRA prototype show a wide beam-scanning range, up to +/- 60 degrees, a peak gain of 17.07 dBi, and an aperture efficiency of about 13.2%.
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