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Broadband semiloop antenna
Author(s) -
Li R. L.,
Fusco V. F.
Publication year - 2002
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.10425
Subject(s) - broadband , return loss , coaxial antenna , electrical engineering , ground plane , bandwidth (computing) , engineering , umts frequency bands , antenna measurement , loop antenna , microwave , electronic engineering , physics , antenna (radio) , telecommunications , microstrip antenna
An unbalanced loop antenna of simple construction is proposed for broadband linearly polarized applications. By introducing a gap in a half loop mounted vertically over a ground plane, the bandwidth of the antenna can be substantially increased relative to its classical balanced version. The antenna presented here has a bandwidth of 30% for a maximum −10‐dB return loss, and is fed directly from a coaxial cable without the need for a balun. Numerical and experimental results show that the antenna can cover the entire PCN, UMTS, and IMT2000 frequency allocations and also offer the prospect for reduced SAR. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 34: 233–234, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10425

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