Electromagnetic coupling mechanism to a conducting strip through a narrow slit in a parallel-plate waveguide

Author

Lee, Jong-Ig ; Lee, Cheol-Hoon ; Cho, Young-Ki

Author_Institution

Div. of Inf. & Commun. Eng., Dongseo Univ., Pusan, South Korea

Volume

49

Issue

4

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

592

Lastpage

596

Abstract

The problem of electromagnetic coupling to a conducting strip through a narrow slit in a parallel-plate waveguide (PPW) is reconsidered with an emphasis on the radiative coupling mechanism. Two different types of coupling are discussed: cavity and parasitic. The maximum coupled power in both cases is observed to be almost the maximum available power from the slit (half of the incident power in the PPW), even though the two types of coupling are quite different from each other in their equivalent circuit representation or coupling mechanism. The similarity between the problem of cavity-type coupling and the previously reported transmission resonance problem through a narrow slit in thick screens is also described in connection with the aperture-body resonance phenomenon

Keywords

electromagnetic coupling; electromagnetic induction; parallel plate waveguides; resonance; waveguide theory; EM coupling; aperture-body resonance phenomenon; cavity-type coupling; conducting strip; electromagnetic coupling mechanism; equivalent circuit representation; incident power; narrow slit; parallel-plate waveguide; parasitic coupling; radiative coupling mechanism; thick screens; transmission resonance problem; Coupling circuits; Dielectrics; Electromagnetic coupling; Electromagnetic scattering; Electromagnetic waveguides; Equivalent circuits; Magnetic fields; Resonance; Slabs; Strips;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.923319

Filename

923319