Open AccessDual‐band dual‐sense circularly polarised square slot antenna with simple structure
Author(s) -
Rui Xu,
Li Jianying,
Wei Kun
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2015.4499
Subject(s) - optics , multi band device , physics , circular polarization , broadband , axial ratio , antenna (radio) , square (algebra) , sense (electronics) , strips , electrical impedance , telecommunications , electrical engineering , microstrip , materials science , mathematics , engineering , geometry , quantum mechanics , composite material
A dual‐band dual‐sense circularly polarised (CP) square slot antenna is presented. The proposed antenna consists of a L‐shape patch and two rectangular strips around two opposite corners on the lower ground. By adjusting the size of them, a broadband dual‐band dual‐sense CP antenna can be obtained. It can radiate right‐hand circular polarisation at 3.0 GHz and left‐hand circular polarisation at 5.5 GHz at + z direction. The measured results of impedance bandwidths for S 11 < −10 dB are 38.8% (2.51–3.72 GHz) and 27.5% (4.83–6.37 GHz). The 3 dB axial ratio bandwidths are 37.4% (2.50–3.65 GHz) and 16.3% (5.02–5.91 GHz).