Communications: radio wave antennas – Antennas – Microstrip
Patent
1993-06-09
1995-04-11
Hajec, Donald
Communications: radio wave antennas
Antennas
Microstrip
343830, 343872, H01Q 138
Patent
active
054062926
ABSTRACT:
A crossed-slot antenna having a reduced number of feed components to achieve circular polarization. The present invention provides a crossed-slot antenna capable of transceiving circularly polarized radiation and having a feed network comprising a ninety degree hybrid and at least one infinite balun. In one embodiment, a transmission line is used to feed a pair of antenna patch elements, one of which acts as a local ground plane for the microstrip line, thereby defining an infinite balun. The transmission line may comprise a microstrip line, the inner conductor of a coaxial cable, or a coplanar waveguide.
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Paschen Dean A.
Schnetzer Michel W.
Alberding Gilbert E.
Ball Corporation
Hajec Donald
Ho Tan
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