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Coplanar UWB antenna with increased suppression characteristics
Author(s) -
Lu Yingying,
Lam HungJui,
Bornemann Jens
Publication year - 2008
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.23881
Subject(s) - coplanar waveguide , standing wave ratio , microwave , antenna (radio) , electrical engineering , broadband , narrowband , antenna efficiency , monopole antenna , engineering , antenna measurement , radiation pattern , coaxial antenna , wideband , electronic engineering , acoustics , physics , telecommunications , microstrip antenna
The improved band‐notch capability of an ultra‐wideband antenna in coplanar technology is demonstrated. The printed‐circuit element includes not only a slot to attenuate narrowband services but also a coplanar‐waveguide filter in the feeding line to aid attenuation level and bandwidth in the same frequency range. The input match of the antenna increases from around 10 dB (VSWR = 2) in the UWB range to −1.29 dB (VSWR = 13.5) in the suppression band. The radiation patterns of the antenna remain largely uninfluenced by the bandstop measures added to the antenna. The performance is validated by comparison with different commercial full‐wave field solvers. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 3111–3114, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23881