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Wideband SIW H ‐plane dual‐ridged end‐fire antenna for conformal application
Author(s) -
Li Jian,
Huang Yongjun,
Wang Ruizhen,
Wang Yao,
Wen Guangjun,
Zhang Haobin
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.30281
Subject(s) - antenna (radio) , wideband , microwave , impedance matching , conformal map , ground plane , electrical impedance , electrical engineering , engineering , acoustics , electronic engineering , materials science , optics , physics , telecommunications , geometry , mathematics
A 6–18 GHz wideband substrate integrated waveguide (SIW) H‐Plane dual‐ridged end‐fire antenna is presented in this paper for conformal application. The dual‐ridged configuration is used to reduce the cut‐off frequency and the characteristic impedance of the SIW. Three groups of air‐vias applied in the front of the dielectric slab can improve the impedance matching. And two bending air slots are integrated in the top metallic layer of the SIW to correct the phase disorder and to further improve the impedance matching performance. With these novel improved designs, the proposed antenna shows experimentally a good impedance matching (|S11| < −7 dB) and exactly end‐fire gain (>4.2 dBi) performances in the frequency range of 6–18 GHz. The proposed antenna also keeps low‐profile and easy flush‐mounted characteristic which is suitable for conformal applications of high speed moving objects. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:286–292, 2017