Dual U-Slot Loaded Patch Antenna with a Modified L-Probe Feeding

Rakesh Nath Tiwari, Prabhakar Singh, Binod Kumar Kanaujia

Abstract


In this paper, a modified L-strip fed patch antenna is theoretically analyzed for wideband applications. Dual U-shaped slots are incorporated in the radiating patch and a maximum bandwidth of 16.93% (2.65 GHz to 3.14 GHz) is achieved. Further, when two parasitic elements are used, antenna bandwidth improves upto 25.89% (2.90 GHz to 3.77 GHz). The maximum gain of dual U-slotted patch and with parasitic elements is 8.23 dBi and 8.46 dBi respectively. Antenna parameters are calculated by CST Microwave studio and equivalent circuit model theory is presented. The proposed antenna is fabricated and the measured results compare well with the theoretical as well as simulated results.

Keywords


Dual U-slot patch antenna; modified L-probe; multilayer patch antenna; gap coupled patch antenna; parasitic elements.

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References


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DOI: http://dx.doi.org/10.1590/2179-10742017v16i3867

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