A Comparative Study of Rectangular and Circular Microstrip Fed Patch Antenna at 2.45 GHz
نویسندگان
چکیده
A Comparative study of rectangular and circular shape microstrip fed patch antennas for bluetooth application is presented in this paper. The resonance frequency is chosen at 2.45 GHz which is suitable for industrial scientific and medical (ISM) band applications. Computer Simulation Technology (CST) microwave studio is used as the software environment to design and compare the performance of the antennas. Based on the results and analysis, it is noted that the rectangular patch antenna shows about 6 dB higher return loss than the return loss of circular patch antenna. In addition, rectangular patch antenna has improved gain value of 7.12 dB than that of the circular patch with gain of 6.87 dB. However, circular patch antenna offers 5.5 MHz higher bandwidth as compared with the rectangular patch. The radiation efficiency of both rectangular and circular shaped microstrip fed patch antennas is nearly the same.
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