The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 2005
Filed:
Jul. 24, 2003
Apisak Ittipiboon, Kanata, CA;
Aldo Petosa, Nepean, CA;
Soulideth Thirakoune, Hull, CA;
David Lee, Kanata, CA;
Marc Lapierre, Orleans, CA;
Yahia Autar, Kingston, CA;
Apisak Ittipiboon, Kanata, CA;
Aldo Petosa, Nepean, CA;
Soulideth Thirakoune, Hull, CA;
David Lee, Kanata, CA;
Marc Lapierre, Orleans, CA;
Yahia Autar, Kingston, CA;
Abstract
An ultra-wideband antenna for operating in a frequency is disclosed wherein a monopole antenna extends from a ground plane. The monopole has an effective length L of one quarter wavelength at the lowest frequency f. A dielectric resonator antenna (DRA) surrounds the monopole antenna for resonating at substantially between or at two and three times the lowest frequency f, the DRA is of a height of less than ¾ L and is disposed in such a manner as being above the ground plane and either contacting or spaced therefrom by a gap G, wherein 0≦G≦0.2 H. The ultra-wideband antenna is of a much greater bandwidth than the sum of bandwidth of the monople or the DRA alone.