Planar Parasitic Monopole Antenna with a Circular Ground Plane for UWB Utility

Subject Areas : Majlesi Journal of Telecommunication Devices

Motahhare Farrokhfar ¹ , seyed Ali Hosseini ² , Mohammad Hossein farrokhfar ³

1 - IRAN Meteorological Organization
2 - Faculty of Technical and Engineering, Imam Hossein University
3 - Department of Electrical Engineering, Technical and Vocational University (TVU)

Received: 2024-01-22 Accepted : 2024-04-26 Published : 2024-06-11

Keywords: sleeve antenna, triangular monopole, Coplanar Waveguide-fed, Ultra-wideband.,

Abstract :

This paper proposes a monopole antenna with two-pair sleeves that is fed through a coplanar waveguide. The new structure is composed of a triangular radiator and sleeves in size of 40× 40×1.6 mm3. The suggested structure is constructed on an FR-4 PCB layer with a dielectric constant of Ԑr=4.3. Finally, the ground plane of the suggested antenna is modified circularly. The best results are obtained by parameters sweep study with the CST simulator. According to the results, the bandwidth range is 2.45-11 GHz, expressing that the compact design covers an ultrawide bandwidth. The optimized antenna is manufactured and the measurement outcome of the return loss is compared with the CST simulator results at various frequencies, representing a satisfactory consistency of simulation and measurement results. The low profile of the designed structure is appropriate for integrated systems. This design is a potential alternative for future UWB devices based on the results.

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