Abstract
This paper presents the design and performance analysis of a rectangular microstrip patch antenna and its array in E and H plane. The antenna is designed at a centre frequency of 5.9GHz for Wi-Fi applications. The simulated return loss, directivity, side lobe level and radiation efficiency of simple patch has been achieved as −26.91dB, 6.862dB, −20.3dB and 77% respectively. An Improved directivity up to 9.6dB and 9.308dB with better matching also has been achieved in case of E and H plane array. Simulated result has been listed and comparative analysis has been done which reveals the fact that with help of array performance characteristics of antenna can be easily enhanced. The substrate used is RO4350 (lossy) whose $\boldsymbol{\varepsilon}_{\boldsymbol{r}}=3.66$ and low loss tangent of 0.004. The corporate feeding technique has been used for array design.
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