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FDTD analysis of a new transition from coplanar waveguide to rectangular waveguide

✍ Scribed by Nihad Dib; Amjad Omar

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 125 KB
Volume: 29
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.1129

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✦ Synopsis

Abstract

A rectangular waveguide fed by a grounded coplanar waveguide (GCPW) is investigated using the finite‐difference time‐domain (FDTD) method. A patch is used to couple energy to the rectangular waveguide (RW) by placing the waveguide opening around the patch. The coupling from the GCPW to the patch is accomplished via an open end. For a 10 dB return loss, a relative bandwidth of 14% is obtained for a GCPW‐to‐RW transition. A back‐to‐back GCPW‐to‐RW transition is analyzed, and is found to have good insertion‐loss characteristics, which verifies that power is indeed coupled to the waveguide. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 29: 199–201, 2001.

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