1 Bit Electronically Reconfigurable Folded Reflectarray Antenna Based on p-i-n Diodes for Wide-Angle Beam-Scanning Applications

By Zhenglong Wang, Yuehe Ge, J. Pu, Xuxiang Chen, Guowei Li, Yufang Wang, Kaiting Liu, Hai Zhang, Zhizhang (David) Chen. IEEE Transactions on Antennas and Propagation, 2020

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In this communication, an electronically reconfigurable folded reflectarray antenna (ERFRA), which includes <inline-formula> <tex-math notation="LaTeX">$14 \times 14$ </tex-math></inline-formula> 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 <inline-formula> <tex-math notation="LaTeX">$14 \times 14$ </tex-math></inline-formula> 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°, a peak gain of 17.07 dBi, and an aperture efficiency of about 13.2%.

Subfields: Aerospace Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/20d4d02b6652ab1edc9e6d676a110449c1d33f52