Viasat, Inc.
Stacked self-diplexed dual-band patch antenna

Abstract:

Disclosed is an antenna having an electrically conductive base. In some embodiments, a first radiating element (102) may overlie the electrically conductive base and be operative in a first frequency band. A second radiating element (104) may overlie the first radiating element (102) and have a footprint smaller than the first radiating element (102). The second radiating element (104) may be operative in a second frequency band. The second radiating element (104) may overlie the first radiating element (102) by a distance such that isolation between the feed lines of respective first and second radiating elements, in the first and second frequency bands, is greater than or equal to 15 dB.