Directive surface-wave launchers and application to planar quasi-optical power combining using a metallic grating lens

Guided surface-waves (SWs) on planar substrates are generally an adverse effect that can degrade the performance of millimeter-wave circuits and antenna arrays. However, with appropriate boundary conditions, such SWs can be harnessed as an efficient means of power transport achieving bound propagati...

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Bibliographic Details
Published in2009 IEEE MTT-S International Microwave Symposium Digest pp. 1185 - 1188
Main Authors Podilchak, S.K., Freundorfer, A.P., Antar, Y.M.M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2009
Subjects
Antenna arrays
Antennas and propagation
Boundary conditions
Degradation
Dielectric substrates
Directive antennas
Gratings
Lenses
Millimeter wave circuits
Planar Millimeter-Wave Circuits
Power combiners
Quasi-Optical Power Combining
Surface-Wave Launchers
Surface-Waves
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Summary:Guided surface-waves (SWs) on planar substrates are generally an adverse effect that can degrade the performance of millimeter-wave circuits and antenna arrays. However, with appropriate boundary conditions, such SWs can be harnessed as an efficient means of power transport achieving bound propagation along a grounded dielectric slab (GDS). Specifically, this work investigates SWs generated from a planar directive surface-wave launcher (SWL). By the addition of printed metallic grating configurations (placed on top of the GDS), cylindrical SWs can be refracted for bound plane-wave propagation. Concepts are extended to a new quasi-optical power combiner circuit for millimeter-wave frequencies of operation. To the authors' knowledge this is the first time such a monolithic quasi-optical power combiner has been presented using directive SWLs and planar metallic grating lenses.
ISBN:1424428033
9781424428038
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2009.5165914