Title :
Compact Substrate Integrated Waveguide Slot Antenna Array With Low Back Lobe
Author :
Jie Wei ; Zhi Ning Chen ; Xianming Qing ; Jin Shi ; Jianhua Xu
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this letter, a compact substrate integrated waveguide (SIW) slot antenna array with a comb-shaped choke is proposed for low back-lobe radiation. The comb-shaped choke consists of an array of quarter-wavelength short-end parallel microstrip lines on the bottom surface of the array for lowering the backward radiation by suppressing the diffraction at the edges of the substrate. The proposed antenna array operating at 10 GHz exhibits a 10-dB back-lobe reduction compared to the antenna without the choke.
Keywords :
microstrip lines; microwave antenna arrays; slot antenna arrays; substrate integrated waveguides; SIW slot antenna array; backward radiation; comb-shaped choke; compact substrate integrated waveguide slot antenna array; frequency 10 GHz; low back-lobe radiation; quarter-wavelength short-end parallel microstrip lines; Antenna arrays; Antenna measurements; Arrays; Inductors; Slot antennas; Surface waves; Antenna array; back lobe; choke; compact antenna; slot antenna array; substrate integrated waveguide (SIW);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2277876
