Title :
Wideband dielectric resonator terahertz reflectarray
Author :
Huan Yi ; Shi-Wei Qu ; Chi Hou Chan
Author_Institution :
Dept. of Microwave Eng., Univ. of Electron. Sei. & Technol. of China, Chengdu, China
Abstract :
Reflectarray is one of the most suitable options for terahertz (THz) frequency applications, because it can realize high gain with low feed loss. However, conventional metallic reflectarray suffer from significant energy dissipation in metals and dielectric losses in the THz frequency band. To overcome those limitations, a dielectric resonator reflectarray is proposed in this paper. The reflectarray is composed of rectangular columns element with high-resistivity silicon. A multi-frequency phase-matching method is employed in the design, and the simulated results show that the reflectarray has high aperture efficiency and a wide 1-dB gain bandwidth.
Keywords :
antenna feeds; broadband antennas; dielectric losses; dielectric resonator antennas; multifrequency antennas; reflectarray antennas; submillimetre wave antennas; THz frequency band; dielectric losses; energy dissipation; high-resistivity silicon; low feed loss; metallic reflectarray; multifrequency phase-matching method; rectangular columns element; wideband dielectric resonator terahertz reflectarray; Bandwidth; Dielectric resonator antennas; Dielectrics; Dipole antennas; Microwave antennas; Reflection; Silicon; Terahertz; dielectric resonator; reflectarray;
Conference_Titel :
Computational Electromagnetics (ICCEM), 2015 IEEE International Conference on
Conference_Location :
Hong Kong
DOI :
10.1109/COMPEM.2015.7052631
