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UWB small slot antenna with WLAN frequency band-stop function

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2 Author(s)
Ojaroudi, N. ; Dept. of Electr. Eng., Islamic Azad Univ., Germi, Iran ; Ghadimi, N.

A new design of a multi-resonance small slot antenna with variable band-notched function for ultra-wideband (UWB) applications is proposed. The proposed slot antenna consists of a square radiating stub and a ground plane with a pair of L-shaped parasitic structures and an inverted T-shaped strip protruding inside the rectangular slit, which provides a wide usable fractional bandwidth of more than 135% (2.98-16.73 GHz), while showing the band rejection performance in the frequency band of 5.05-5.9 GHz to avoid any interference from wireless local area network systems. The designed antenna has a small size of 20 × 20 × 0.8 mm3. Simulated and experimental results obtained for this antenna show that it exhibits good radiation behaviour within the UWB frequency range.

Published in:

Electronics Letters  (Volume:49 ,  Issue: 21 )

Date of Publication:

October 10 2013

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