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A compact fractal dual high frequency band notched UWB antenna with a novel SC-DGS

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Abstract

A compact and novel fractal dual band notched UWB antenna with time domain characteristics is presented. A tapered microstrip fed circular fractal radiating patch along with a novel semi circular defected ground structure produce − 10 dB bandwidth from 3.73 to 16.7 GHz. The proposed antenna is a miniature size of 16 × 21 mm2 and is printed on FR-4 substrate with two high frequency notched bands from 7.29–7.76 GHz to 9.53–11.17 GHz to notch X-band satellite communications link by incorporating L and C-shaped parasitic elements respectively. The proposed antenna exhibits a uniform gain of 2–4.26 dBi, flat group delay around 1.2 ns, and peak radiation efficiency about 96% in operating frequencies makes it suitable for wireless UWB portable devices.

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Authors and Affiliations

  1. Department of ECE, JNTUA, Anathapuramu, AP, India

    V. N. Koteswara Rao Devana

  2. ECE Department, PBRVITS, Kavali, AP, India

    A. Maheswara Rao

Authors
  1. V. N. Koteswara Rao Devana
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  2. A. Maheswara Rao
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Correspondence to V. N. Koteswara Rao Devana.

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Koteswara Rao Devana, V.N., Maheswara Rao, A. A compact fractal dual high frequency band notched UWB antenna with a novel SC-DGS. Analog Integr Circ Sig Process 107, 145–153 (2021). https://doi.org/10.1007/s10470-020-01774-y

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  • DOI: https://doi.org/10.1007/s10470-020-01774-y

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