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A novel UHF M inkowski fractal antenna for partial discharge detection
Author(s) -
Wang Feng,
Bin Feng,
Sun Qiuqin,
Fan Jingmin,
Liang Fangwei,
Xiao Xuanyi
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.30629
Subject(s) - monopole antenna , ground plane , fractal antenna , ultra high frequency , j pole antenna , physics , dipole antenna , broadband , antenna (radio) , acoustics , helical antenna , miniaturization , electrical engineering , geometry , coaxial antenna , optics , engineering , mathematics
A compact and wideband ultra‐high‐frequency antenna is developed in this work. Based on the Minkowski fractal geometry of the lateral boundaries of monopole and the upper boundary of ground plane, miniaturization is realized. Meanwhile, by optimizing the dimension of the semi‐elliptical part of monopole and the triangular notch of ground plane, the impedance bandwidth is enhanced. To confirm the performance of antenna, a series of experiments are conducted. The size and ratio bandwidth of antenna are compared with existing broadband ones. The proposed antenna with size of 0.3 λ L × 0.25 λ L covers the frequency ranging from 700 MHz to more than 3 GHz and possesses an average gain of 4.08 dBi.