Slot array antennas fed by coplanar waveguide for millimeter wave radiation
- Resource Type
- Conference
- Authors
- Kobayashi, H.; Yasuoka, Y.
- Source
- 1997 Topical Symposium on Millimeter Waves. Proceedings (Cat. No.97TH8274) Millimeter waves (TSMW) Millimeter Waves, 1997 Topical Symposium on. :169-172 1997
- Subject
- Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Aerospace
Communication, Networking and Broadcast Technologies
Photonics and Electrooptics
Antenna arrays
Slot antennas
Coplanar waveguides
Dielectric substrates
Dipole antennas
Submillimeter wave devices
Surface waves
Dielectric thin films
Receiving antennas
Submillimeter wave propagation
- Language
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/spl times/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.