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Characteristics comparison of substrate‐integrated rectangular waveguide (SIRW) and its equivalent rectangular waveguide
Author(s) -
Che Wenquan,
Ji Xiaojing,
Wu Ke
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.21059
Subject(s) - waveguide , microwave , optics , materials science , propagation constant , extremely high frequency , substrate (aquarium) , slotted waveguide , ka band , millimeter , physics , telecommunications , engineering , slot antenna , radiation pattern , oceanography , quantum mechanics , antenna (radio) , geology
The propagation and loss characteristics of the substrate‐integrated rectangular waveguide (SIRW) at microwave and millimeter‐wave bands are investigated. The results further verify that the substrate‐integrated rectangular waveguide has nearly the same waveguide characteristics as conventional rectangular waveguides, and it can be analyzed as a rectangular waveguide with effective width of the SIRW. The insertion loss of SIRW and its equivalent rectangular waveguide agree well with each other. However, it is observed that the derivation of the propagation characteristics of the SIRW and its equivalent rectangular waveguide indicates the frequency dependency. At the X‐, K‐, and Ka‐bands, the effective width of the equivalent rectangular waveguide given by the empirical formula [7] should be slightly increased in order to obtain the propagation characteristic that agrees better with that of the SIRW, about 2%. In addition, at the U‐band, when the effective width of the equivalent rectangular waveguide is increased 5% or so, the propagation constant of the rectangular waveguide in the whole band agrees well with that of the rectangular waveguide. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 588–592, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21059