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Radiation efficiency of apertures in parallel‐plate waveguides
Author(s) -
Marg Reimar,
Mallwitz Alexander,
Jacob Arne F.
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19990505)21:3<159::aid-mop1>3.0.co;2-p
Subject(s) - shielded cable , microwave , radiation , antenna (radio) , slot antenna , optics , interference (communication) , antenna efficiency , waveguide , radiation pattern , substrate (aquarium) , physics , optoelectronics , materials science , engineering , electrical engineering , telecommunications , channel (broadcasting) , oceanography , geology
The effect of parallel‐plate waveguide modes on the radiation efficiency of shielded slot antennas is studied. In a simple case, a closed‐form expression is given. The influence of different substrate layers is treated; interference effects are shown to improve the efficiency of slot antenna arrays. Experimental verification is given. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 21: 159–162, 1999.