volume | PIER Journals

Abstract

A novel ultrawideband (UWB) antenna with a single parasitic U-type element is reported to exhibit dual-band notch peculiarities. A slotted radiator and a novel defected ground structure (DGS) comprise the proposed antenna, which has a bandwidth of 2.9-11.75 GHz (121%) in the UWB spectrum. By etching a single inverted U-shaped parasitic element on top of the DGS, two rejected bands at the downlink of X-band (6.8-8 GHz) and the uplink of X-band (9.7-11.3 GHz) applications are achieved. The proposed antenna is printed on an FR-4 substrate with a compact size of 24×28 mm², has a gain fluctuation of 1.4-5.7 dBi, and a peak radiation efficiency of 92.3%. The suggested antenna is a viable candidate for downlink and uplink X-band notched UWB applications owing to the excellent agreement between its measured and simulated results.

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5. Koteswara Rao Devana, V. N. and A. Maheswara Rao, "Dual band rejection UWB antenna using slot and a novel modified ψ-shaped parasitic," 2020 7th International Conference on Smart Structures and Systems (ICSSS), 1-4, 2020.

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7. Koteswara Rao Devana, V. N. and A. Maheswara Rao, "A novel fan shaped UWB antenna with band notch for WLAN using a simple parasitic slit," International Journal of Electronics Letters, Vol. 7, No. 3, 352-366, 2019.
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14. Koteswara Rao Devana, V. N. and A. Maheswara Rao, "A novel compact tri band notched UWB monopole antenna," Progress In Electromagnetics Research M, Vol. 91, 123-134, 2020.
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15. Koteswara Rao Devana, V. N. and A. Maheswara Rao, "Design and analysis of dual band notched UWB antenna using a slot in feed and asymmetrical parasitic," IETE Journal of Research, 2020.

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20. Sharm, N. and S. S. Bhatia, "Design of printed monopole antenna with band notch characteristics for ultra-wideband applications," International Journal of RF and Microwave Computer Aided Engineering, e21894, 2019.

21. Ibrahim, A. A., M. A. Abdalla, and A. Boutejdar, "A printed compact band-notched antenna using octagonal radiating patch and meander slot technique for UWB applications," Progress In Electromagnetics Research M, Vol. 54, 153-162, 2017.
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Dr. Grandhi Venkata Subrahmanyam

Prof. Sri Rama Krishna Kalva