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:
Apr. 10, 2007
Filed:
Jun. 09, 2004
Louis Luh, San Gabriel, CA (US);
Louis Luh, San Gabriel, CA (US);
Raytheon Company, Waltham, MA (US);
Abstract
A Q enhancement circuit and method. In a most general embodiment, the inventive circuit is adapted for use with a component having a parasitic resistance Rand a first resistance Rdisposed in series with the component and an arrangement for making the resistance a negative resistance. In the illustrative embodiment, first and second inductors constitute the components for which Q enhancement is effected. A resistance Ris disposed in series with the first inductor and is equal to the parasitic resistance Rthereof. Likewise, a second resistance Ris disposed in series with the second inductor and is equal to the parasitic resistance Rthereof. The Q enhancement circuit further includes a first transistor Qand a second transistor Q.