Title :
Wideband terahertz frequency-scanning reflectarray
Author :
Shi-Wei Qu ; Wei-Wei Wu ; Kung Bo Ng ; Bao-Jie Chen ; Chi Hou Chan
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci & Technol. of China (UESTC), Chengdu, China
Abstract :
As an alternative of parabolic reflectors, microstrip reflectarrays inherit their many merits as well as those of conventional antenna arrays. This work is focused on solving the problem of terahertz (THz) beam scanning by reflectarrays. The proposed reflectarray is demonstrated based on novel single-layered elements with a linear phase delay and multi-frequency phase-matching method. An operating bandwidth of over 40% is achieved by the frequency-scanning reflectarray with a beam scanning angle of -35 ~ -5°.
Keywords :
broadband antennas; reflectarray antennas; terahertz wave devices; antenna arrays; linear phase delay; microstrip reflectarrays; multifrequency phase-matching method; parabolic reflectors; single-layered elements; wideband terahertz frequency-scanning reflectarray; Apertures; Bandwidth; Feeds; Finite element analysis; Frequency conversion; Wireless communication; Beam scanning; reflectarrays; terahertz;
Conference_Titel :
Electromagnetics (iWEM), 2014 IEEE International Workshop on
Conference_Location :
Sapporo
DOI :
10.1109/iWEM.2014.6963655
