A DUAL BAND FRACTAL SLOT ANTENNA LOADED WITH JERUSALEM CROSSES FOR WIRELESS AND WIMAX COMMUNICATIONS | Zendy

Mohammad Sedghi | Zendy; Mohammad NaserMoghadasi | Zendy; Ferdows B. Zarrabi | Zendy

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A DUAL BAND FRACTAL SLOT ANTENNA LOADED WITH JERUSALEM CROSSES FOR WIRELESS AND WIMAX COMMUNICATIONS

Author(s) -

Mohammad Sedghi,

Mohammad NaserMoghadasi,

Ferdows B. Zarrabi

Publication year - 2016

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl16042702

Subject(s) - wimax , multi band device , fractal antenna , dual (grammatical number) , wireless , fractal , telecommunications , antenna (radio) , computer science , electrical engineering , electronic engineering , engineering , mathematics , omnidirectional antenna , art , coaxial antenna , mathematical analysis , literature

In this paper, a combination of the Jerusalem cross (JC) as a fractal load and fractal Minkowski slot antenna for dual-band application is investigated. The prototype slot antenna has a Minkowski fractal formation with four Jerusalem cross (JC) loads to achieve dual-band application with compact size to improve the bandwidth. A T-shaped feed line is implemented in the final modeled antenna. The fabricated antenna has a bi-directional pattern with sufficient bandwidth at 2.4–3.1 GHz and 5.1–5.9 GHz with VSWR < 2 for Wi-Fi, WiMAX, Bluetooth application as well as an IEEE WLAN protocol with a gain of 5–6 dBi, respectively. The size of the prototype patch antenna is 40×40 mm2, and the antenna is designed and fabricated on an FR-4 low cost substrate with εr = 4.4 and thickness of 1.6 mm. It is simulated by HFSS full wave software. In addition, the VSWR, pattern and axial ratio of experimental results are presented and compared with simulation models. As a result, improvements of the Jerusalem cross compared with conventional cross have been achieved with some parameter tuning to improve the bandwidth.

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