A MODIFIED MICROSTRIP-FED TWO-STEP TAPERED MONOPOLE ANTENNA FOR UWB AND WLAN APPLICATIONS | Zendy

Reza Zaker | Zendy; Changiz Ghobadi | Zendy; Javad Nourinia | Zendy

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A MODIFIED MICROSTRIP-FED TWO-STEP TAPERED MONOPOLE ANTENNA FOR UWB AND WLAN APPLICATIONS

Author(s) -

Reza Zaker,

Changiz Ghobadi,

Javad Nourinia

Publication year - 2007

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier07080701

Subject(s) - monopole antenna , microstrip antenna , microstrip , antenna (radio) , electrical length , magnetic monopole , acoustics , electrical engineering , telecommunications , computer science , electronic engineering , physics , engineering , coaxial antenna , quantum mechanics

This paper presents a novel modified Printed Tapered Monopole Antenna (PTMA)for ultra wideband (UWB)wireless communication applications. The proposed antenna consists of a truncated ground plane and two-tapered radiating patch separated by a slot (air gap)of different slopes, which provides a wideband behavior and relatively good matching. Moreover, the effects of a modified T-shaped slot inserted in the first tapered patch, on the impedance matching is investigated. The antenna has a small area of 23 × 26. 5m m2 and offers an impedance bandwidth as high as 100% at a centre frequency of 7.2 GHz for S11 < −10 dB, which has an area reduction of 15% and a frequency bandwidth increment of 72% with respect to the previous similar antenna. The presented antenna covers the 5.2/5.8 GHz WLAN and 5.5 GHz WIMAX operating bands. Numerical analysis using Ansoft HFSS and measurement results is also presented in the paper.

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