Design of Coplanar Proximity Coupled Feed Hexagonal Shaped Circular Polarized Microstrip Patch Antenna
DOI:
https://doi.org/10.48048/tis.2022.4170Keywords:
Multiband, Gap coupled, Coplanar proximity coupled feed, Dual circular polarization, Hexagonal patch, Parasitic elementsAbstract
This paper presents a broadband-multiband circularly polarized hexagonal patch antenna. The structure is fed by a unique coplanar hexagonal gap coupled proximity coupled feed with parasitic elements. The antenna is designed using a 14.2×14.2 mm2 FR4 substrate. By introducing hexagonal slot and I slot in the patch, the structure behaves as a multiband antenna with resonating frequencies at 2.76, 5.66 and 11.52 GHz. with 0.2837, 0.4525 and 0.3356 GHz respective bandwidths. By inserting I-shaped slots and rectangular slots in patch and also, I-shaped slots in the ground, the circular polarization is achieved in the L band and C band. The proposed structure was fabricated and tested. The simulated results of the magnitude of S11, radiation patterns and realized gains show good agreement with tested results.
HIGHLIGHTS
- Proposed antenna is single layer broadband multiband circularly polarized hexagonal patch antenna
- A unique feed technique coplanar hexagonal gap coupled proximity coupled feed with parasitic elements is used
- The size of the antenna is compact 14.2×14.2 mm2 and resonating frequencies at 2.76, 5.66 and 11. 52 GHz. with 0.2837GHz/28.37%, 0.4525GHz/ 45.23% and 0.3356GHz/33.56%, respective bandwidths and efficiency
- The antenna is used for WiFi/WiMax application as well as terrestrial communication applications near the costal region or a high humidity environment
GRAPHICAL ABSTRACT
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