Slot-array antennas fed by coplanar waveguide for millimeter-wave radiation

Author

Kobayashi, Hiroaki ; Yasuoka, Yoshizumi

Author_Institution

Dept. of Electron. Eng., Nat. Defense Acad., Yokosuka, Japan

Volume

46

Issue

6

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

800

Lastpage

805

Abstract

Slot-array antennas with parasitic slots, slot-array antennas fed by coplanar waveguide (CPW), and two-dimensional slot-array antennas fed by CPW were fabricated on fused quartz substrates, and the receiving properties of the antennas were investigated at 94 GHz with the goal of increasing the power gain of the slot antennas. It was found that the power gain of the slot antenna could be increased by 11 dB over a single-slot antenna by using a two-dimensional (8×3) slot-array antenna fed by CPW. It was confirmed that the improvement of the power gain was caused by decreasing surface-wave power in the substrate and by sharpening antenna patterns perpendicular to the substrate

Keywords

antenna feeds; antenna radiation patterns; coplanar waveguides; millimetre wave antenna arrays; slot antenna arrays; 94 GHz; CPW feed; EHF; MM-wave slot-array antennas; SiO₂; coplanar waveguide feed; fused quartz substrates; millimeter-wave radiation; parasitic slots; pattern sharpening; power gain improvement; surface-wave power; two-dimensional slot-array antennas; Coplanar waveguides; Dielectric substrates; Dielectric thin films; Dipole antennas; Microstrip antennas; Millimeter wave communication; Millimeter wave technology; Receiving antennas; Slot antennas; Submillimeter wave communication;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.681203

Filename

681203