Title :
Novel Multiport Cavity-Backed Antenna for Low-Cost Array Applications
Author :
Qi Jiang ; Shi-Wei Qu
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this letter, a novel three-element linear cavity- backed antenna (CBA) array with high aperture efficiency is proposed. First, in order to reduce the loss and cost caused by the feeding network, a multiport CBA acting as a radiator as well as a power divider is investigated. Then, based on the multiport CBA, a three-element antenna array with a wide operating frequency band (19-21 GHz) is designed. The simulated broadside gain is from 9.7 to 11.1 dBi over the whole operating band, and the aperture efficiency of the proposed CBA array ranges from 99.1% to 123.7%. The proposed idea has potential applications in low-cost antenna arrays due to the simplified feeding network.
Keywords :
aperture antennas; linear antenna arrays; microwave antenna arrays; frequency 19 GHz to 21 GHz; high aperture efficiency; low-cost array applications; multiport CBA; novel multiport cavity-backed antenna; novel three-element linear cavity- backed antenna array; power divider; simplified feeding network; Antenna arrays; Apertures; Arrays; Dipole antennas; Gain; Power dividers; Cavity-backed antennas (CBAs); coupling strips; high aperture efficiency; power dividers;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2015.2410033
