A TM guide for surface wave power routing and application to planar quasi-optical dividing/combining arrays

Surface waves (SWs) on planar substrates are generally an adverse effect that can degrade the performance of millimetre-wave circuits and antennas. However, with appropriate boundary conditions, such SWs can be harnessed as an efficient means of power transport achieving bound propagation along a gr...

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Bibliographic Details
Published in2012 IEEE/MTT-S International Microwave Symposium Digest pp. 1 - 3
Main Authors Podilchak, S.K., Freundorfer, A.P., Antar, Y.M.M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2012
Subjects
Couplers
Frequency measurement
Integrated circuit modeling
Planar Circuits
Power Routing
Quasi-Optical Combining
Routing
Slabs
Surface impedance
Surface waves
Surface-Wave Launchers
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Summary:Surface waves (SWs) on planar substrates are generally an adverse effect that can degrade the performance of millimetre-wave circuits and antennas. 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. Specifically this work studies TM fields generated from a planar SW source and launched into a novel guide for directive power routing. Analysis of the excited modes is completed and power channelling concepts are extended to a compact quasi-optical power combiner circuit for microwave and millimetre-wave frequencies of operation. Measurements and simulations are in agreement and impedance bandwidths of 20% are observed. Presented guidance and power directing techniques are also applicable to other printed circuit designs, multi-layer configurations, directional couplers, waveguide bends and transitions, repeater systems, new antenna feeds, and other power dividing/combining and routing circuits.
ISBN:1467310859
9781467310857
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2012.6259755