Design of Novel Rectangular Microstrip Patch Antenna with Improved Gain and Performance Analysis

Abstract

The proposed design involves in the fabrication of high gain rectangular patch antenna in which the core part is Duroid 6010 substrate. The performance is analyzed with RT-Duroid 5880 patch substrate-based antennas. FEKO software is evolved in the design of RT-Duroid 5880 rectangular patch antennas and collecting the data set from 40 samples with a pre-test 95 % confidence interval and an alpha error threshold of 0.05. First group was designed with the RT-Duroid 5880 substrate and the second one was developed with the Duroid 6010. 20 samples of both Duroid 6010 and RT-Duroid 5880 were collected. A total of 40 groups were collected. The novel microstrip patch antenna operates in the frequency spectrum of 2 GHz to 3 GHz band. When performing a t-test of independent samples on the two groups under consideration, the mean gain of Duroid 6010 and RT-Duroid 5880 are 0.8820 and 3.0755 respectively with the expected significance of 0.001 (p<0.05). The gain of RT-Duroid 5880 antenna and Duroid 6010 are 4.66 dB and 1.2 dB respectively. The directivity is 3.45 dB for RT-Duroid 5880 substrate and 2.52 dB for Duroid 6010 substrate. From this study it appears that the design of the RT-Duroid 5880 is significantly better than the design of the Duroid 6010.