Open AccessWideband circularly polarised antenna with an asymmetric meandered‐shaped monopole and defected ground structure for wireless communication
Author(s) -
Jhajharia Tejpal,
Tiwari Vivekanand,
Yadav Dinesh,
Rawat Sanyog,
Bhatnagar Deepak
Publication year - 2018
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2018.0092
Subject(s) - wideband , monopole antenna , physics , bandwidth (computing) , helical antenna , electrical impedance , axial ratio , magnetic monopole , antenna (radio) , wireless , ground plane , electrical engineering , optics , acoustics , circular polarization , telecommunications , engineering , microstrip , quantum mechanics , periscope antenna
A new geometry of wideband circularly polarised antenna with an asymmetric meandered‐shaped monopole is proposed in this communication. The wideband characteristics of the antenna are accomplished by the two asymmetric meandered‐shaped perpendicular arms of monopole and defected ground structure having slanting edge. The proposed prototype offers good performance in terms of impedance bandwidth (close to 102.04% in the frequency range 2.4–7.4 GHz) and the 3 dB axial‐ratio (AR) bandwidth (close to 37.5% in the frequency range 4.9–6.9 GHz). The realised impedance and AR bandwidths cover the WLAN/Wi‐MAX bands and Wi‐Fi band (5.5 GHz).