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:
Jan. 02, 2001
Filed:
Dec. 18, 1998
El-Badawy Amien El-Sharawy, Gilbert, AZ (US);
Other;
Abstract
A TE,mode dielectric resonator (,) includes a cylindrical dielectric disk (,) having top and bottom ends (,) spaced apart by a closed curve wall (,). The dielectric disk has an effective dielectric constant greater than 40. An axially aligned hole (,) is formed through the disk (,) between the top and bottom ends (,). A conductive wall (,) is formed at or slightly beyond the wall (,) but does not cover the top and bottom ends (,). The hole (,) has a preferred diameter between 0.21 and 0.4 times the diameter of the disk (,). The disk may be configured as a heterogeneous composite of dissimilar materials which exhibit increasing dielectric constant at increasing radial distance and increasing Q at decreasing radial distance.