Coplanar-waveguide/microstrip probe coupler and applications to antennas |
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Authors: | Simons RN Lee RQ |
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Affiliation: | NASA Lewis Res. Center, Cleveland, OH, USA; |
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Abstract: | A method to couple microwave power from a coplanar waveguide to a microstrip line on opposite sides of a ground plane is demonstrated. The measured insertion loss and return loss are about 1 dB and 10 dB, respectively, across the frequency range of 0.045-6.5 GHz. To demonstrate potential applications of the coupler as a feeding network for a microstrip patch array measured radiation patterns for two rectangular patch antennas with a direct coplanar-waveguide/microstrip feed and with a proximity coupled coplanar-waveguide/microstrip feed are presented.<> |
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