Square ring microstrip patch triple band antenna for GSM/ WiMAX/ WLAN systems

The proposed antenna is implemented for three bands operation system modern global system for mobile (GSM), microwave worldwide interoperability (WiMAX), and local area network (WLAN). The designed antenna consisted of a low profile square-ring planar microstrip antenna, with dimensions of 37×37 mm2. The antenna operates at 1.8 GHz, 3.6 GHz, and 5.5 GHz frequencies for GSM, WiMAX and WLAN characteristics all in one system. The proposed tri-band antenna is constructed by stacking square ring patch antenna utilizing slots, microstrip feed line, and the ground plane. The general configuration procedure is explained and the parametric values are optimized to produce suitable dimensions, which can be operated in different frequency bands. However, the radiating part and overall antenna size are less than the individuals of the tri-band antenna concentrated on. The antenna modelling has been designed using CST MWS environment. The proposed design fabricated using a FR4 substrate with a dielectric permittivity of 4.3. The simulated and measured results were certified using vector network analyzer. Therefore, the outcome results indicate great concurrence between the simulation and measurement.

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