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Numerical analysis of rectangular waveguide multiple‐slot narrow‐wall couplers using a 2D/FDTD algorithm
Author(s) -
Navarro Enrique A.
Publication year - 1994
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.4650071506
Subject(s) - finite difference time domain method , computation , power dividers and directional couplers , simple (philosophy) , coupling (piping) , waveguide , hybrid coupler , excitation , field (mathematics) , algorithm , computer science , electronic engineering , physics , optics , topology (electrical circuits) , engineering , mathematics , electrical engineering , mechanical engineering , philosophy , epistemology , pure mathematics
Slot narrow‐wall couplers are simple but effective directional couplers. A simple and efficient approach to analyze these devices using the FDTD algorithm is presented. The technique uses a synthetic excitation and a second‐order ABC especially designed for the frequencies contained in the incident field. The method is illustrated in the computation of coupling and isolation of a two‐slot ‐20‐dB coupler and is also applied to study a three‐slot coupler. © 1994 John Wiley & Sons, Inc.