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An Improved Band-Rejection UWB Antenna With Resonant Patches and a Slot

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2 Author(s)
Joon-Won Jang ; Dept. of Electr. & Electron. Eng., Kangwon Nat. Univ., Chuncheon ; Hee-Yong Hwang

Using two parasitic patches and a parasitic slot, we achieved a circular-slot type ultrawideband (UWB) antenna with excellent band-rejection characteristics. By changing the parameters of the parasitic patches and slot on the radiator, not only the rejection frequency but also the skirt and bandwidth of the 5-GHz rejection band can be easily modified without the degradation of the UWB antenna characteristics itself. Optimized parasitic patches and slot give the conventional circular-slot UWB antenna sufficient rejection bandwidth and sharp skirt response in 5-GHz rejection band.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:8 )