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:
May. 16, 2006
Filed:
Apr. 30, 2004
Eugene Nikolay Ivanov, Crawley, AU;
Michael Edmund Tobar, Crawley, AU;
John Gideon Hartnett, Crawley, AU;
Eugene Nikolay Ivanov, Crawley, AU;
Michael Edmund Tobar, Crawley, AU;
John Gideon Hartnett, Crawley, AU;
Poseidon Scientific Instruments Pty Ltd, Fremantle, AU;
The University of Western Australia, Nedlands, AU;
Abstract
An oscillator having a desired output frequency, comprising a cavity resonatorloaded with an anisotropic dielectric material and an oscillator circuitincluding the cavity resonatoras a frequency determining element, the oscillator circuitarranged to operate the cavity resonatorat a first frequency in a first mode and at a second frequency in a second mode, the first mode and the second mode each being influenced to a different extent by the thermal coefficient of permittivity of at least one crystal axis of the dielectric material, the oscillator circuit arranged to produce the desired operating frequency from the first frequency and the second frequency. The first frequency and the second frequency differ by an amount corresponding to the desired output frequency.