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An ultra-wideband antenna using Hilbert slots with dual band rejection characteristics

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2 Author(s)
Verma, S. ; ECE Dept., Nat. Inst. of Technol. Durgapur, Durgapur, India ; Ghatak, R.

A planar ultrawideband antenna with dual band rejection characteristics is presented in this paper. A rejection band, located at 5.5GHz WLAN band, is created using a Hilbert slot at the centre of the antenna patch and the other notched band located at 8.1GHz satellite communication band is achieved by a pair of Hilbert slots in the ground plane. The slots occupy less space compared to other slotted structures. The proposed antenna yields an impedance bandwidth of 3.1-10.6GHz with VSWR<;2 except at the two notched bands. The antenna gain varies from 2.8 dBi to 6.5 dBi over the band with dips at the rejection band.

Published in:

Antenna Week (IAW), 2011 Indian

Date of Conference:

18-22 Dec. 2011

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