Progress In Electromagnetics Research C
ISSN: 1937-8718
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By A. Elboushi, O. M. H. Ahmed, A. R. Sebak, and T. A. Denidni

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Two microstrip fed ultra-wideband (UWB) antennas with different band rejection techniques are presented in this paper. The designed antennas consist of a defected ground plane with an elliptical slot and two different radiator shapes. The first design is composed of a half circular ring radiator element while the second one uses a crescent shaped radiator. The radiators are fed by a 50 Ω microstrip line with a tapered microstrip transition to ensure good impedance matching. The calculated impedance bandwidth of the proposed antenna ranges from 3 GHz to 14 GHz with relatively stable radiation patterns. To achieve band-notch characteristic in the 5.0--6.0 GHz WLAN frequency band, two different techniques have been implemented. The first technique uses a C-shaped slot etched in the ground plane while the other one uses another Cshaped slot in the feed line.

A. Elboushi, O. M. H. Ahmed, A. R. Sebak, and T. A. Denidni, "Study of Ellpitical Slot UWB Antennas with a 5.0--6.0 GHz Band-Notch Capability," Progress In Electromagnetics Research C, Vol. 16, 207-222, 2010.

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