New Microstrip Gap Waveguide on Mushroom-Type EBG for Packaging of Microwave Components
Artikel i vetenskaplig tidskrift, 2012

The gap waveguide has been recently presented as a new transmission line technology using artificial magnetic conductors (AMCs) to allow the wave propagation only along a desired path. The first validation has been provided using a lid of metal pins as AMC for high frequency applications. In this letter, simulations and measurement results are presented for another version called microstrip gap waveguide, working as inverted microstrip line and realized using a mushroom-type EBG surface. The transmission line is surrounded by mushrooms which create a parallel plate stop band, suppressing cavity modes and unwanted radiations compared to standard packaged microstrip transmission lines. The field propagates in the air gap between the upper lid and the mushrooms layer, providing a low loss compact circuit made in printed technology.

Gap waveguides

mushrooms-type electromagnetic band-gap (EBG)

microstrip lines



Elena Pucci

Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk

Eva Rajo

Universidad Carlos III de Madrid

Per-Simon Kildal

Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk

IEEE Microwave and Wireless Components Letters

1531-1309 (ISSN) 15581764 (eISSN)

Vol. 22 3 129-131 6157653


Informations- och kommunikationsteknik


Elektroteknik och elektronik



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