Design of a dual-polarization corporate-feed waveguide 32×32-slot array antenna for 120 GHz band

Author

Hashimoto, Koji ; Hirokawa, Jiro ; Ando, Makoto ; Takeuchi, Jun ; Hirata, Akihiko

Author_Institution

Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan

fYear

2014

fDate

4-6 Aug. 2014

Firstpage

171

Lastpage

172

Abstract

In this paper, we design a dual-polarization corporate-feed waveguide 32×32-slot array antenna for 120 GHz band in order to increase the operating frequency band and the gain. As a result of the simulation by HFSS, the bandwidth for VSWR less than 1.5 at the design frequency of 125 GHz is 7.6% (S₁₁) and 8.8% (S₂₂), respectively. The isolation is more than 50 dB over the above bandwidth. The simulated realized gain for both polarizations is 38.5 dBi at 125 GHz with the antenna efficiency of 85%.

Keywords

antenna feeds; antenna radiation patterns; millimetre wave antenna arrays; slot antenna arrays; HFSS; antenna efficiency; dual-polarization corporate-feed waveguide 32×32-slot array antenna design; frequency 120 GHz; frequency 125 GHz; gain 38.5 dB; millimeter wave; operating frequency band; Antenna arrays; Antenna feeds; Arrays; Bandwidth; Cavity resonators; Couplings; Gain; 120GHz band; dual polarization; millimeter wave; waveguide slot array;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics (iWEM), 2014 IEEE International Workshop on

Conference_Location

Sapporo

Type

conf

DOI

10.1109/iWEM.2014.6963691

Filename

6963691