CSRR based patch antenna for Wi-Fi and WiMAX Applications

Abstract

In this paper, a novel compact microstrip patch antenna is proposed for Wi-Fi and WiMAX bands. To achieve miniaturization the dimensions of the square radiating patch are chosen with reference to the high frequency band (3.3 GHz). The dual band is achieved by loading a Complementary Split Ring Resonator (CSRR) into the radiating patch. The left handed nature of the CSRR is the cause for low frequency band (2.4 GHz). To improve the return loss bandwidth and axial ratio bandwidth at upper band the fractal concept is introduced along the edges of the square patch. Thus a low volume dual band antenna is simulated using HFSS. A comparison with measured data is also presented. The fabricated antenna is found to be occupying 25% less volume (with reference to 2.4 GHz) than existing antennas which is mainly due to the blending of the two recent concepts 'metamaterials and fractals'.

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“…In the last decade, electromagnetic (EM) simulation has confirmed its presence in the field of the analysis and design of microwave and RF integrated circuits to generate a big library for simulators with a huge number of elements that are geometrically complex and sensible. The study of complex planar circuits seems to be an inexhaustible source of studies and inventions, which have had a significant influence on EM simulation, among other fields [1][2][3][4][5][6].…”

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