Ultra-wideband antenna

Details Ultra-wideband antenna Ultra-wideband antenna

2006-06-13

2006-06-13

Phan, Tho (Department: 2821)

Communications: radio wave antennas

Antennas

Slot type

C343S770000

Reexamination Certificate

active

07061442

ABSTRACT:
An ultra-wideband (UWB) antenna is provided. It comprises a dielectric substrate, a ground plate, a metal plate, and a transmission line. The ground plate formed on the dielectric substrate has a first slot thereon. The metal plate formed on the dielectric substrate has a feed-point and a second slot thereon. The total length of the second slot is about a half-wavelength at the desired notched frequency for the UWB antenna. By embedding the second slot of a suitable length on the metal plate resided in the first slot, a band notched characteristic is achieved for the antenna in the 5 GHz band, thereby overcoming the problem of signal interference with the UWB operations. The disclosed antenna and the circuitry for the antenna system are easily integrated. With the simple structure, the fabrication cost for the antenna is also reduced.

REFERENCES:
patent: 5025264 (1991-06-01), Stafford
patent: 5061943 (1991-10-01), Rammos
patent: 6606071 (2003-08-01), Cheng et al.
patent: 6774859 (2004-08-01), Schantz et al.
patent: 2005/0168389 (2005-08-01), Yuanzhu et al.
patent: 2006/0055612 (2006-03-01), Kim et al.
CPW-fed planar ultra wideband antenna having a frequency band notch function/Electronics Letters/vol. 40, Issue 7, pp. 403-405, 2004.
Frequency notched UWB antennas/ Ultra Wideband Systems and Technologies, IEEE, pp. 214-218, 2003.
A parametric study of band-notched uwb planar monopole antennas / Antennas and Propagation Society Symposium, IEEE vol. 2, pp. 1768-1771 vol. 2,2004.
Planar ultra wide band slot antenna with frequency band notch function / Antennas and Propagation Society Symposium, IEEE vol. 2, pp. 1788-1791 vol. 2,2004.

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