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Matched loads using substrate integrated waveguide and shaped absorbing material for KA‐/Q‐band applications
Author(s) -
Huang Yong Mao,
Peng Yujia,
Jiang Wei,
Wang Tengxing,
Jin Haiyan,
Leng Supeng,
Wang Guoan
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.30491
Subject(s) - ka band , substrate (aquarium) , materials science , waveguide , optoelectronics , electrical engineering , engineering , geology , oceanography
Two planar matched loads using substrate integrated waveguide (SIW) and absorbing material are presented. The magnetic‐loss absorbing material is cut into horn and concave shapes and loaded into SIW sections respectively to form two SIW matched loads. Measured results of the proposed SIW matched loads show comparable agreement with their corresponding simulations. Moreover, the proposed matched loads exhibit fractional bandwidths of 46.1 and 68%, respectively with a return loss over 18.5 dB, as well as system integration capability, low complexity and low cost, which demonstrate their suitability for Ka‐ and Q‐band applications. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1174–1178, 2017