Multilayer antennas for directive beam steering broadside radiation and circular polarization

Symon Podilchak, Al P. Freundorfer, Yahia M. M. Antar

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Multilayer antennas that utilize surface-waves launchers (SWLs) for leaky wave (LW) excitation are presented for microwave and millimeter-wave applications. Specifically, by placing two superstrate dielectric layers on top of a base grounded dielectric slab, a resonant cavity structure can be realized, and the bound field distributions can be transformed into LWs for radiation into the far field. For verification of the multilayer designs a single antenna structure is fabricated using commercially available substrates. A pencil beam can be observed at 17.4 GHz with measured gain values of >10.5 dBi at broadside. In addition, by using an array of such SWL sources, beam steering can be achieved as well as circular polarization.
Original languageEnglish
Title of host publicationProceedings of the Fourth European Conference on Antennas and Propagation
Place of PublicationUnited States
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Publication statusPublished - 2010


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