Design & Analysis of a Modified Circular Microstrip Patch Antenna with Circular Polarization and Harmonic Suppression

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Provided by: International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering (IJAREEIE)
Topic: Mobility
Format: PDF
In this paper, a circular microstrip patch antenna with embedded circular slots to obtain harmonic suppression and peripheral cuts for producing Circular Polarization (CP) is proposed and analyzed. Antenna is designed by taking into consideration the use of active integrated antennas and rectifying antennas (rectenna). Low cost FR4 epoxy is used as the substrate and 2.45GHz/802.11a as the design frequency. Simulated 10dB return loss bandwidth of 171MHz and CP 3dB axial ratio bandwidth of 46MHz is obtained. Size reduction of 4% is also obtained as compared to the conventional circular patch antenna with Linear Polarization (LP).
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