Performance analysis of wideband microstrip patch antenna with amplified radiation

The problem of narrow bandwidth is a major concern in general for MPA (Microstrip Patch Antenna). In this study, we have performed certain methods to enhance the antenna bandwidth by taking into consideration a proposed antenna and accordingly analyzed how it behaves by changing its various dimensions like patch length, antenna height, substrate thickness. The major objective of this analysis here, is to amplify the antenna bandwidth more than that of a normal patch antenna, which means that then this proposed structure could prove to be essential in a number of applications like WLAN (Wireless Local Area Network) and Bluetooth. The value of center frequency, for which a broad impedance bandwidth is observed for this antenna is 3 GHz that belongs to the S band (2-4 GHz) region. Simulations have been performed using Ansoft HFSS (High Frequency-Structure Simulator) simulation software which uses the FEM (Finite Element Method) procedure for solving its various operations. The patch antenna exhibits radiation intensity value of 14 dB which is projected at 0 degrees. The proposed antenna, with the aid of numerical analysis of the patch measurements, undergoes a noticeable increment in the bandwidth that is visible at a particular resonant frequency, after comparisons are done with various other iterations. Furthermore, the value of the resonant frequency and the center frequency are both alike, i.e., 3 GHz. Also, VSWR (Voltage Standing Wave Ratio) for the antenna is near about 1. This means that the proposed structure has a great impedance match and it invariably plays a role in the antenna's wideband performance. Furthermore, the antenna possesses a gain of nearly 6 dB for that frequency accompanied by an absolutely symmetrical pattern of radiation, in addition to having an impedance bandwidth of 45.67%.