Plate-laminated waveguide slot array antennas for wideband and high-gain operations

Author

Hirokawa, Jiro ; Tomura, Takashi ; Miao Zhang ; Ando, Makoto

Author_Institution

Tokyo Inst. of Technol., Tokyo, Japan

fYear

2014

fDate

16-23 Aug. 2014

Firstpage

1

Lastpage

1

Abstract

This paper presents plate-laminated waveguide slot array antennas for wideband and high-gain operations. Fig.1 shows the structure. A corporate feed circuit is placed on the bottom layer. A coupling slot at each end in the corporate feed circuit excites 2×2 exciting slots in an x-shaped cavity. Each of the exciting slots excites a radiating slot pair in a radiating cavity. All the radiating slot pairs are basically excited in equal amplitude and phase at any frequency. The radiating slot pair consists of two narrow slots to suppress the cross polarization. The antenna will be installed by rotating by 45 degrees as shown in Fig.1 to suppress sidelobes in the horizontal (E) and vertical (H) planes in fixed wireless access system.

Keywords

antenna feeds; broadband antennas; laminations; slot antenna arrays; E-plane; H-plane; X-shaped cavity; bottom layer; corporate feed circuit; coupling slot; cross polarization suppression; fixed wireless access system; high-gain operations; horizontal planes; plate-laminated waveguide slot array antennas; radiating cavity; radiating slot pair; vertical planes; wideband antenna; Antenna measurements; Arrays; Bandwidth; Feeds; Frequency measurement; Gain;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI

Conference_Location

Beijing

Type

conf

DOI

10.1109/URSIGASS.2014.6929135

Filename

6929135