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. 19, 2005
Filed:
Sep. 15, 2003
Daryl W. Barry, Dunwoody, GA (US);
Carl S. Chun, Atlanta, GA (US);
Sangwoo Han, Dunwoody, GA (US);
Thomas B. Smith, Decatur, GA (US);
Michael W. Trippe, Norcross, GA (US);
Daryl W. Barry, Dunwoody, GA (US);
Carl S. Chun, Atlanta, GA (US);
Sangwoo Han, Dunwoody, GA (US);
Thomas B. Smith, Decatur, GA (US);
Michael W. Trippe, Norcross, GA (US);
Anadigics, Norcross, GA (US);
Abstract
A transistor bias circuit is provided that is capable of biasing an amplifier transistor having a control terminal, a current-sink terminal, and a current-source terminal in order to control inter-modulation and linearize the output corresponding to radio frequency and microwave frequency ranges. Additionally, an embodiment of the present circuit is capable of dynamic power control. The transistor bias circuit according to the present invention utilizes a leakage current to alter the electrical characteristics of the amplifier transistor. The bias circuit comprises a bias transistor having a control terminal, a current-sink terminal, and a current-source terminal. Additionally, at least one DC input port, at least one resonator element, a diode element, and a resistive element is provided.