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Design of a Bethe‐hole directional coupler using substrate integrated waveguide technique
Author(s) -
Amine Ali,
Talbi Larbi,
Sellal Kheireddine
Publication year - 2011
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.26119
Subject(s) - directivity , microwave , hybrid coupler , extremely high frequency , power dividers and directional couplers , waveguide , substrate (aquarium) , antenna (radio) , rat race coupler , coupling (piping) , q band , return loss , microwave transmission , optoelectronics , electrical engineering , engineering , electronic engineering , materials science , physics , telecommunications , mechanical engineering , oceanography , geology
This article proposes the design of a Bethe‐hole (BH) directional coupler using substrate integrated waveguide (SIW) technique. The design can readily be coupled with, for instance, an antenna and is therefore suitable for millimeter‐wave communication systems. Good agreements have been achieved between simulated and experimental results for a 25‐dB BH SIW coupler operating in the X‐band. Directivity greater than 20‐dB and a coupling of 24.7 dB were obtained. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26119