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:
Mar. 09, 2004
Filed:
Jul. 18, 2002
Other;
Abstract
The invention provides a dielectric resonator device comprising a coaxial dielectric resonator which comprises a dielectric block having a bore extending therethrough, an outer conductor layer formed on an outer peripheral surface of the dielectric block , an inner conductor layer formed on the dielectric block over an inner peripheral surface thereof defining the bore , a short-circuiting conductor layer providing a short circuit between the outer conductor layer and the inner conductor layer , and a separated conductor layer formed on the outer peripheral surface of the dielectric block and electrically separated from the outer conductor layer . The separated conductor layer is connected to the ground by a switch SW, which varies the capacity of the resonator upon switching to alter the resonance frequency thereof.