Title :
A low-cost silicon-based beam-steering grating antenna for G-band applications
Author :
Taeb, A. ; Abdellatif, Ahmed Shehata ; Rafi, Gholamreza Z. ; Gigoyan, S. ; Safavi-Neini, Safieddin ; Basha, M.
Author_Institution :
ECE Dept., Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
This paper presents a Dielectric Image Guide (DIG) beam-steering antenna for operating at G-band. The antenna, which is made of High Resistive Silicon (HRS), is essentially a leaky wave antenna with uniform grating on top. A very accurate, fast, and low-cost laser fabrication process is developed and used for the proposed structure. The radiation mechanism is investigated using full-wave electromagnetic simulations. The antenna provides a frequency-scanning capability up to 20° over the frequency range between 153-165 GHz. The optimized antenna achieves radiation efficiency better than 94% and max gain of 14.2 dBi, which drops only 0.5 dB all over the beam scanning range. The antenna return loss is better than 10 dB over the scanning range.
Keywords :
antenna radiation patterns; beam steering; dielectric waveguides; electrical engineering computing; elemental semiconductors; laser materials processing; leaky wave antennas; millimetre wave antennas; G-band applications; antenna return loss; beam scanning range; dielectric image guide beam-steering antenna; frequency 153 GHz to 165 GHz; frequency range; frequency-scanning capability; full-wave electromagnetic simulations; gain 14.2 dB; high resistive silicon; leaky wave antenna; loss 10 dB; low-cost laser fabrication process; low-cost silicon-based beam-steering grating antenna; radiation mechanism; uniform grating; Dielectrics; Gain; Gratings; Leaky wave antennas; Silicon;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904968
