volume | PIER Journals

Abstract

In this paper, a new artificial magnetic conductor (AMC) structure is proposed to enhance the performance of an ultra-wideband (UWB) antenna for wireless communication networks. A fractal configuration is used to introduce the UWB performance of the proposed antenna. The antenna is composed of a modified rectangular patch antenna with a tapered section fed by a coplanar waveguide (CPW) with a total size of 24×20×1.5 mm³ . The antenna is backed by an AMC. The proposed AMC unit consists of a square patch surrounded by four slotted square rings. This unit cell exhibits an in-phase reflection from 6.3 GHz to 10 GHz. The obtained bandwidth of the antenna with AMC is 110% from 3.2 GHz to 11 GHz which covers the entire UWB range. The peak gain of 7.2 dB is accomplished with a compact size of 40×40×6.5 mm³ , 0.95×0.95×0.15λ_o at 7.1 GHz. The proposed UWB antenna-AMC is fabricated and measured for verification.

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Dr. Khalid Moustafa Ibrahim

Dr. Eman M. Eldesouki

Prof. Ahmed Attiya