Abstract
In this paper, simulation and experimental studies of triple-band inset-fed rectangular microstrip patch antenna with enhanced gain are presented. The proposed antenna covers ISM/WLAN (2.45 GHz), WiMAX (3.5 GHz) and fixed mobile (4.65 GHz) frequency bands. The number of frequency bands of the antenna is increased from one (with centre frequency of 2.45 GHz) to three (having centre frequencies of 2.45, 3.5 and 4.65 GHz) corresponding to ISM/WLAN, WiMAX and fixed mobile services by introducing two rectangular slots along the radiating edges and a parasitic element to the feed line. A superstrate is placed above the antenna at optimum distance to increase the gain of the combination. The simulated input characteristics, radiation pattern and gain of the antenna over the frequency range of interest are compared with the respective experimental results. The simulation studies were carried out using Ansys' High Frequency Structure Simulator (HFSS) software.
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