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A new circuital model for the longitudinal‐transverse waveguide slot coupler
Author(s) -
Casula G. Andrea,
Mazzarella Giuseppe,
Montisci Giorgio
Publication year - 2005
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/mop.20621
Subject(s) - transverse plane , hybrid coupler , waveguide , physics , optics , engineering , acoustics , power dividers and directional couplers , structural engineering
Abstract A longitudinal‐transverse waveguide slot coupler has usually been modelled as a shunt‐series ideal transformer. This is not true, nor is an approximation, even for resonant couplers. In this paper, we first present a discussion of the properties of such a slot coupler and of the admissible approximations which can be used in the coupler modelling. Then we derive an equivalent circuit in the form of a nonideal admittance inverter, which becomes an ideal one for resonant slots, and set the limit of the model itself. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 313–318, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20621