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A wideband back‐to‐back U‐shaped monopole antenna
Author(s) -
Zheng Yaqiang,
Gao Min
Publication year - 2019
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.31820
Subject(s) - monopole antenna , antenna efficiency , antenna measurement , radiation pattern , coaxial antenna , antenna factor , acoustics , dipole antenna , wideband , electrical engineering , antenna (radio) , physics , optics , engineering , electronic engineering
Abstract A wideband back‐to‐back U‐shaped monopole antenna with conical radiation pattern is presented in this article. The proposed antenna has a simple and compact structure and a grounded coplanar waveguide is used to feed the antenna. Compared with the single U‐shaped structure for radiating, the proposed back‐to‐back U‐shaped configuration can enhance the impedance bandwidth effectively. The performance characteristics of the proposed antenna are verified by an elaborate antenna prototype. Valuable consistence is obtained between the simulated and experimental results. The experimental results show that the antenna owns a −10 dB impedance bandwidth of 95.8% (ranging from 1.25 to 3.55 GHz) and a peak gain of 3.75 dBi occurring at 2.8 GHz. The radiation patterns are stable with low cross polarization levels within the bandwidth. These merits can make the proposed antenna a good choice for modern indoor wireless communication systems.