Trapezoid ultra wide band patch antenna

Communications: radio wave antennas – Antennas – Microstrip

Reexamination Certificate

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Reexamination Certificate

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07042401

ABSTRACT:
A micro-miniature, light weighted and low cost trapezoid ultra wide antenna having an ultra wide band characteristics and a notch characteristic in 5 GHz WLAN band (5.15–5.35 GHz) is disclosed. The trapezoid ultra wide antenna includes: a dielectric substrate; a trapezoid shaped patch formed at an upper end of a middle line on an upper side of the dielectric substrate; a feeding line formed at a bottom end of the middle line on the upper side of the dielectric substrate for feeding electric power to the trapezoid shaped patch; a matching stub formed between the trapezoid shaped patch and the feeding line for impedance matching between the trapezoid shaped patch and the feeding line; and a ground formed at a side of the feeding line on the upper side of the dielectric substrate.

REFERENCES:
patent: 5530637 (1996-06-01), Fujita et al.
patent: 5600331 (1997-02-01), Buralli
patent: 5828340 (1998-10-01), Johnson
patent: 6034637 (2000-03-01), McCoy et al.
patent: 6150981 (2000-11-01), Suguro et al.
patent: 6339402 (2002-01-01), McKivergan
patent: 6573866 (2003-06-01), Chen
patent: 2005/0162335 (2005-07-01), Ishii
patent: 1020030054845 (2003-07-01), None
patent: 1020040052899 (2004-06-01), None
Project: IEEE P802.15 Working Froup for Wireless Personal Area Networks (WPANS), 13 pages.
The Design of the Trapezoid Ultra-Wideband Antenna using CPW-Fed, 7 pages.

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