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Design of dual band-notched lamp-shaped antenna with UWB characteristics

Published online by Cambridge University Press:  05 November 2015

Swati Yadav ,
Anil Kumar Gautam  and
Binod Kumar Kanaujia
Swati Yadav
Affiliation:
Department of Electronics & Communication Engineering, G. B. Pant Engineering College, Pauri Garhwal, Uttarakhand-246 194, India. Phone: +91 8979 719 397
Anil Kumar Gautam*
Affiliation:
Department of Electronics & Communication Engineering, G. B. Pant Engineering College, Pauri Garhwal, Uttarakhand-246 194, India. Phone: +91 8979 719 397
Binod Kumar Kanaujia
Affiliation:
Department of Electronics & Communication Engineering, Ambedkar Institute of Advanced Communication Technologies & Research, Geeta Colony, Delhi-110031, India
*
Corresponding author: A. K. Gautam Email: drakgautam@ieee.org
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Abstract

To restrict electromagnetic interference at WiMAX (3.3–3.7 GHz) and wireless local area network (WLAN) (5.15–5.825 GHz) bands operating within ultra wide bandwidth (UWB) band, a novel design of lamp-shaped UWB microstrip antenna with dual band-notched characteristics is presented. The proposed antenna is composed of a lamp-shaped radiating patch with two rectangular ground planes on both the sides of the radiator with the gap of 0.57 mm. To improve impedance mismatch at middle frequencies, two triangular strips one at each of the ground plane are added; whereas a rectangular slot is etched in the radiating patch to remove impedance mismatch at higher frequencies of the UWB band. Furthermore, an L-shaped slot in the radiator and two L-shaped slots in the ground plane are used to restrict electromagnetic interference (EMI) at WiMAX and WLAN bands, respectively, without affecting the electrical performance of the UWB antenna. Effects of the key parameters on the frequency range of the notched bands are also investigated. The proposed design shows a measured impedance bandwidth of 12.5 GHz (2.7–14.4 GHz), with the two band-notched bands of 3.0–3.9 and 4.9–5.8 GHz. The antenna is suitable to be integrated within the portable UWB devices without EMI interference at WiMAX and WLAN bands.

Keywords

Band-notchedCPW-fedUWB monopole antennaDual-notchWiMAXWLAN
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 2 , March 2017 , pp. 395 - 402
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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