Modified fractal-based Polarization-Reconfigurable Patch Antenna for 2.4 GHz ISM Band Applications

A modified fractal-based planar structure with the ability to switch between circular polarization states is presented in this article. This design is made up of a basic radiating patch of circular-shape incorporated with repeated rectangular stubs at an angle of 10° on the outer perimeter excited d...

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Bibliographic Details
Published in2023 International Conference on Wireless Communications Signal Processing and Networking (WiSPNET) pp. 01 - 05
Main Authors Das, Tanmaya Kumar, Das, Rupanita, Kumar, Abinash, Kumari, Ridhi, Mandal, Priya, Mukhi, Rupesh Kumar, Pradhan, Jagannath Dayal
Format Conference Proceeding
LanguageEnglish
Published IEEE 29.03.2023
Subjects
Bandwidth
Circular polarization
Fractal
ISM band
PIN diode
Polarization
Polarization recongurability
Resonant frequency
Shape
Signal processing
Switches
Wireless communication
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Summary:A modified fractal-based planar structure with the ability to switch between circular polarization states is presented in this article. This design is made up of a basic radiating patch of circular-shape incorporated with repeated rectangular stubs at an angle of 10° on the outer perimeter excited diagonally by co-axial feeding. On the radiating patch, slots in the shape of a U, are inserted to place PIN diodes (silicon) to achieve polarization reconfigurability. To validate the performance, the design is simulated on an FR4 substrate. The simulated results of the design show an -10 dB bandwidth in the frequency range of 2.36-2.48 GHz. It also indicates the 3 dB axial ratio bandwidth of 2.38-2.41 GHz with a 2.4 GHz resonating frequency. The peak realized gain of the modified fractal structure is found to be 3.26 dBic with stable radiation performance at the ISM (Industrial, Scientific, and Medical) band.
DOI:10.1109/WiSPNET57748.2023.10134042