Title :
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
Abstract :
Two-dimensional slot array antennas fed by coplanar waveguide (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 10 dB over a single slot antenna by using a two-dimensional (4×3) 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; receiving antennas; slot antenna arrays; 94 GHz; antenna patterns; coplanar waveguide; fused quartz substrates; millimeter wave radiation; power gain; receiving properties; surface wave power; two-dimensional slot array antennas; Antenna arrays; Coplanar waveguides; Dielectric substrates; Dielectric thin films; Dipole antennas; Receiving antennas; Slot antennas; Submillimeter wave devices; Submillimeter wave propagation; Surface waves;
Conference_Titel :
Millimeter Waves, 1997 Topical Symposium on
Conference_Location :
Kanagawa
Print_ISBN :
0-7803-3887-1
DOI :
10.1109/TSMW.1997.702499
