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Slot array antennas fed by coplanar waveguide for millimeter wave radiation

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2 Author(s)
Kobayashi, H. ; Dept. of Electron. Eng., Nat. Defense Acad., Yokosuka, Japan ; Yasuoka, Y.

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

Published in:

Millimeter Waves, 1997 Topical Symposium on

Date of Conference:

7-8 Jul 1997