Abstract
This paper investigated the effect of two main parameters of patch antenna by using partial ground techniques and addition of modified double W-shaped split ring resonator (MDW-SRR). The results show that these two techniques can be improving the performance of the return loss and bandwidth result of the patch antenna. The proposed antenna covers the frequency range of 1821.1 MHz to 3117.1 MHz with 1309.8 MHz of bandwidth compare to the normal antenna with only 33 MHz (2386 MHz to 2419.4 MHz). Firstly, the basic microstrip patch antenna design (Design A1) had been simulated in CST Microwave Studio simulation software. Secondly, the partial ground effect had been applied at the back of FR-4 substrate (Design A2). Then the Design B1, Design B2, Design B3 of four, eight and twelve units of modified double W-shaped split ring resonator (MDW-SRR) had been added into the patch antenna to compare its return loss, bandwidth, gain and directivity of the patch antenna.
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