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CPW-fed printed UWB antenna with open-loop inverted triangular-shaped slot for WLAN band filtering

Published online by Cambridge University Press:  08 January 2015

Majid Shokri*
Affiliation:
Young Researchers and Elite Club, Urmia Branch, Islamic Azad University, Urmia, Iran
Vahid Rafii
Affiliation:
Young Researchers and Elite Club, Urmia Branch, Islamic Azad University, Urmia, Iran
Saeid Karamzadeh
Affiliation:
Department of Electric and Electronics Engineering, Istanbul Aydin University, Istanbul, Turkey
Zhaleh Amiri
Affiliation:
Young Researchers and Elite Club, Urmia Branch, Islamic Azad University, Urmia, Iran
Bal Virdee
Affiliation:
Faculty of Life Sciences and Computing, Center for Communications Technology, London Metropolitan University, London, UK
*
Corresponding author: M. Shokri Email: majed.shokri@gmail.com

Abstract

A compact CPW-fed printed monopole slot antenna is presented for ultra-wideband (UWB) applications. The antenna comprises of a dome-shaped radiating element in which embedded is an open-loop inverted triangular-shaped slot (TSS). The antenna is fed through a coplanar waveguide to provide an ultra-wide impedance bandwidth of 8.95 GHz (2.58–11.53 GHz) which corresponds to a bandwidth ratio of 1:4.46 for VSWR <2. The antenna possesses a notch band functionality to filter out interfering C-band signals like wireless local-area network (WLAN). The notch band frequency is determined by physical parameters defining the TSS that allows fine control of the notch's location. The proposed antenna also possesses a flat gain response expect at the notched band and occupies a relatively small volume of 25 × 25 × 0.8 mm3 for ease of system integration.

Type
Research Paper
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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