A Novel Compact Fractal UWB Antenna with Triple Reconfigurable Notch Reject Bands Applications.pdf (1.91 MB)
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A novel compact fractal UWB antenna with triple reconfigurable notch reject bands applications

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journal contribution
posted on 29.01.2019, 10:28 by Amir H. Nazeri, Abolfazl Falahati, Robert EdwardsRobert Edwards
A compact, circular UWB fractal antenna with triple reconfigurable notch rejection bands is proposed. It rejects the crowded frequency bands WiMAX, WLAN and X band interferences produced in UWB communication systems. The proposed fractal structure consists of a basic circular patch with circular fractal iterations. By employing this new structure of fractals, the overall size of antenna is reduced 53% to 21 × 25 mm, in comparison with traditional circular monopole antenna. The implemented antenna operates at 3.1–10 GHz. Re-configurability is realized by designing slots and split ring resonators in desired frequencies with the attached PIN diodes. WLAN band rejection was realized by creating a pair of optimized L-shaped slots in the ground plane. By etching a split ring resonator and a U-shaped slot, X and WiMAX bands were also rejected. Furthermore, by attaching diodes to aforementioned slots and designating the diodes on/off, different bands can be included or rejected. In time domain, the antenna properties are evaluated by a figure of merit called fidelity factor. Finally, the antenna properties are measured in anechoic chamber and the results agrees with simulation findings.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

AEU - International Journal of Electronics and Communications

Volume

101

Pages

1 - 8

Citation

NAZERI, A.H., FALAHATI, A. and EDWARDS, R.M., 2019. A novel compact fractal UWB antenna with triple reconfigurable notch reject bands applications. AEU - International Journal of Electronics and Communications, 101, pp.1-8.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This paper was accepted for publication in the journal AEU - International Journal of Electronics and Communications and the definitive published version is available at https://doi.org/10.1016/j.aeue.2019.01.018.

Acceptance date

17/01/2019

Publication date

2019-01-18

ISSN

1434-8411

Language

en