Summary
URSI Commission B 2013 International Symposium on Electromagnetic Theory EMTS 2013
2013
Session Number:23PM2B
Session:
Number:23PM2B-04
Study of a High Gain Radial Line Slot Antenna in Ka-band for Space Uses
Tung .X. Nguyen, Rushanthi .S. Jayawardene, Yasutomo Takano, Kimio Sakurai, Takuichi Hirano, Jiro Hirokawa, Makoto Ando, Osamu Amano, Shuichi Koreeda, Takaomi Matsuzaki,
pp.611-613
Publication Date:2013/5/20
Online ISSN:2188-5079
DOI:10.34385/proc.30.23PM2B-04
Summary:
A slot array design for a very high gain of more than 44dBi RLSA was reported in this paper. A conventional slot array design procedure based on the Method of Moments (MoM) was still applied, but needed to modify in order to adapt with a very large number of radiating elements and a complex, multilayer structure of the substrate. A fast analysis method based on a simplified but reliable equivalent model of the multilayer waveguide was established to estimate the antenna performance. Finally, several RLSAs having ϕ = 900mm diameter were fabricated and characterized by the near field measurement. In the optimum case, a directivity of 48.3dBi correspond to 73% aperture efficiency was obtained at 31.9GHz, at which the measured gain was 44.6dBi.