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Band-Notched UWB Antenna Incorporating a Microstrip Open-Loop Resonator

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3 Author(s)
Kelly, J.R. ; Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK ; Hall, P.S. ; Gardner, P.

Ultrawideband (UWB) systems require band notch filters in order to prevent sensitive components, within the front-end of the receiver, from being overloaded by strong signals. Recently, it has been shown that these filters can be integrated into the UWB antenna, to great advantage. This communication presents a new method for forming a notch band within the frequency response of a UWB antenna. An open loop notch band resonator is located on the back of the substrate, used to support the UWB monopole. The act of separating the resonator from the antenna means that they can now be designed in isolation, using the standard approach described in the literature, and then combined. A prototype was constructed and good agreement has been obtained between simulation and measurement. The radiation patterns are consistent over the frequency range of interest.

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Antennas and Propagation, IEEE Transactions on  (Volume:59 ,  Issue: 8 )