Microstrip Patch Antenna: Comparing Performance of a Rectangular and a Circular Patch at LTE Bluetooth and GSM Frequencies

Abstract

The demand for smaller, conformable antennas with desired properties has made antenna Engineers to device better ways of making antennas. The patch antenna comes to the rescue, as it provides the features needed in antennas used in the telecoms, meteorological and military industries, where light weight low profile antennas are required. The Microstrip patch antennas comes in different shapes and configuration, the most common being circular and rectangular. This paper takes a close look at the performance characteristics of the rectangular and circular Microstrip antennas , comparing different antenna parameters like directivity, E and H planes Half Power Beam Width (HPBW) vis-à-vis the dimensions and size( area of patch). Five frequencies (0.9Ghz,1.8Ghz ,1.9Ghz and 2.3Ghz and 2.4Ghz) are used in computing the configurations-these frequencies correspond to that of GSM, LTE and Bluetooth ; results from this paper can be used in building practical antennas for phones and laptops or any Bluetooth enabled device

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