Title :
Study of a high gain radial line slot antenna in Ka-band for space uses
Author :
Nguyen, Truong X. ; Jayawardene, Rushanthi S. ; Takano, Yuta ; Sakurai, Kimio ; Hirano, Takuichi ; Hirokawa, Jiro ; Ando, Makoto ; Amano, Osamu ; Koreeda, Shuichi ; Matsuzaki, Takaomi
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
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.
Keywords :
method of moments; millimetre wave antennas; multilayers; slot antennas; MoM; antenna performance; aperture efficiency; equivalent model; frequency 31.9 GHz; high gain radial line slot antenna; method of moments; millimetre wave antennas; multilayer structure; multilayer waveguide; radiating elements; size 900 mm; slot array design; Antenna measurements; Nonhomogeneous media; Radio access networks; Skin; Stability analysis; Thickness measurement; Multi-layer waveguide structure; Radial Line Slot Antenna; Space Uses;
Conference_Titel :
Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on
Conference_Location :
Hiroshima
Print_ISBN :
978-1-4673-4939-0
