Microstrip patch antennas are of high demand for its light weight, cheap manufacturing, small size, high gain, high directive gain and also offers circular polarization apart from linear polarization. But it also has narrow bandwidth operation due to its resonant nature, which is a disadvantage for its class. Huge research is being conducted on it for its possible improvement in its performance in the near future. A large number of methods have been suggested, which can reduce the limitations of the antenna, thus improving the performance, with no deviations in the basic advantages of the antenna. The area of research interests are like changing the geometrical dimensions of the antenna, especially changing the dimensions of the ground plane of the antenna. This paper provides a comparison of the work done, by changing the ground plane to partial ground plane and getting an enhanced bandwidth value.

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The Microstrip Patch Antenna are widely used in Mobile and Satellite communication, Global Position System Applications, handheld devices etc. Microstrip patch antennas have advantages like light in weight, less volume, inexpensive, small size and ease of fabrication and conformity. Also, the microstrip patch antennas are also capable to provide dual and circular polarizations, dual-frequency operation, broad bandwidth range, etc. In this paper, an optimised design of Microstrip Arrow-head Triangular shaped slot antenna is proposed. Double slot is introduced in Micrstrip Arrow-head Triangular shaped slot antenna. The dimensions of the Triangular shape is also modified. The compared results demonstrates better performance of the proposed antenna.