Open AccessCompact fractal antenna circularly polarised radiation for Wi‐Fi and WiMAX communications
Author(s) -
Abed Amer T.,
Singh Mandeep S. Jit,
Islam Mohamed T.
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.2018.5213
Subject(s) - wimax , fractal antenna , antenna (radio) , radiation , fractal , physics , radiation pattern , optics , telecommunications , computer science , electronic engineering , antenna efficiency , wireless , engineering , mathematics , mathematical analysis
A novel antenna design was configured via a five‐stage process. At each stage, a new modified square patch with a half size of that used in the previous stage was added to shape the dual fractal‐structure antenna. The antenna had measured dual operating bands (2.4–2.65 and 4.8–6.4 GHz) that meet the specifications of the wireless fidelity (Wi‐Fi) and worldwide interoperability for microwave access (WiMAX) applications. The structure of the antenna was carefully analysed to achieve an axial ratio bandwidth of 3dB , which was ∼35% of the first operating band and 30% of the second operating band. Right‐hand and left‐hand circular polarisations were achieved by switching the inputs. The proposed antenna can be used with portable communication devices because of its compact size (18 × 18 × 0.8 mm 3 ) and maximum efficiency (85%) compared with other related antennas.