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

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 bandwidt...

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Veröffentlicht in:	IEEE antennas and wireless propagation letters 2009, Vol.8, p.299-302
Hauptverfasser:	Jang, Joon-Won, Hwang, Hee-Yong
Format:	Artikel
Sprache:	eng
Schlagworte:	Antennas Antennas and propagation Band-rejection antenna Bandwidth circular-slot antenna Circularity Frequency Interference Patch antennas Radar antennas Radiators Rejection Resonance resonant patches resonant slot Skirts Slot antennas Ultra wideband antennas Ultra wideband technology Ultrawideband ultrawideband (UWB) antenna Wireless LAN
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Beschreibung
Zusammenfassung:	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.
ISSN:	1536-1225 1548-5757
DOI:	10.1109/LAWP.2009.2015344