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Broadband aperture‐coupled microstrip line to waveguide transition with loading a vertically mounted strip
Author(s) -
Kim Yeon Ju,
Kwak Jin Hwan,
Song Hao,
Jiang Xiaofang,
Kim Jeong Phill
Publication year - 2017
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.30403
Subject(s) - broadband , return loss , microstrip , aperture (computer memory) , optics , waveguide , insertion loss , materials science , microwave , transmission line , parametric statistics , optoelectronics , telecommunications , acoustics , engineering , physics , mathematics , antenna (radio) , statistics
ABSTRACT A novel aperture‐coupled microstrip‐to‐waveguide transition is presented in this article. A vertically mounted strip has been inserted into the E ‐plane of a rectangular waveguide in order to provide broadband characteristics and higher forward transmission efficiency. A parametric study was made in order to obtain the optimal design data for broadband, low loss, and high efficiency. In addition, a tolerance study proves that the proposed transition is robust in regards to mechanical assembly and alignment. An X‐band transition was designed, and the measured results demonstrate that the transition shows a broadband (49.5 % with a reference return loss of 10 dB), low insertion loss (0.41 dB), and high transmission efficiency (93.40 %). © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:811–815, 2017