Abstract

This paper demonstrates the performance analysis of different CSRR and PSRR techniques in microstrip patch antenna design. In this paper, the performance of conventional rectangular microstrip patch antenna with defected ground structure has been analysed by employing different complementary split-ring resonator (rectangular and circular shape) and planar split-ring resonator (M and mho shape) structures on the patch of antenna. It has been observed that there is significant improvement in impedance bandwidth and return loss by employing different CSRR and PSRR structures on conventional microstrip patch antenna. The proposed antennas have been designed and simulated in CST-Microwave Studio 2014. The performance of antenna designs has been analysed in terms of return loss (S11), impedance bandwidth, gain, directivity and VSWR. It has been concluded that rectangular CSRR leads to drastic improvement in return loss and M shaped PSRR leads to improvement in gain, directivity and impedance bandwidth of antenna. These antenna designs have been fabricated and tested practically using E5071C network analyser and anechoic chamber. It has been concluded that the practical results closely match with the simulated results. The proposed antennas can be used for WLAN, Wi-MAX, Wi-Fi and IMT applications.

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