An Equilateral Arm Inverted U-Slot and Notch Loaded UWB-CPMA with Rendered Ground Plane
Mukesh Kumar1, Jamshed Aslam Ansari2, Abhishek K. Saroj3, Rohini Saxena4

1Mukesh Kumar*, Department of ECE, University of Allahabad, (U.P), India.
2Jamshed Aalam Ansari, Department of ECE, University of Allahabad, (U.P), India.
3Abhishek K. Saroj, Department of ECE, University of Allahabad, (U.P), India.
4Rohini Saxena, Department of ECE, University of Allahabad, (U.P), India.
Manuscript received on November 26, 2019. | Revised Manuscript received on December 15, 2019. | Manuscript published on December 30, 2019. | PP: 1595-1600 | Volume-9 Issue-2, December, 2019. | Retrieval Number:  B2353129219/2019©BEIESP | DOI: 10.35940/ijeat.B2353.129219
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Abstract: In this paper, a microstrip fed modified circular patch monopole antenna (CPMA) with the rendered ground surface is presented for bandwidth enhancement. In order to extend the bandwidth of a demonstrated antenna, symmetrical slots and equilateral arms inverted U-slot are loaded on the partial ground and patch individually. For additional enhancement in the secured bandwidth, symmetrical notches are truncated from the bottom of the patch. The antenna has a dimension of 30x40x1.6 mm3, which is erected on low cost, FR-4 substrate with relative permittivity , permeability and loss tangent of . The proposed design is analyzed and simulated using high frequency structure simulator (HFSS). The analyzed results are validated through experimented results. The proposed antenna offers a bandwidth of 140.2 % with a maximum radiation efficiency of 94 % over the frequency scope of 2.54 GHz to 14.47 GHz. The cross polarization levels are also found to be 20-30 dB and 12-23 dB smaller than the co-polarized level for E-plane and H-plane respectively. For better execution and assessment of proposed antenna, a parametric study has been done to analyze the performance of antenna with variations in the length of a partial ground conductor beside the other parameters. The exhibited antenna is suitable for various applications incorporating WiMAX, WLAN, UWB, C-band, X-band and UWB.
Keywords: CPMA, MPA, MSA, UWB, Rendered Ground, Bandwidth Enhancement, Radiation Efficiency.