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. 01, 2013
Filed:
Jun. 30, 2005
Dan B. Kasha, Seattle, WA (US);
G. Tyson Tuttle, Austin, TX (US);
Gregory A. Hodgson, Pflugerville, TX (US);
Dan B. Kasha, Seattle, WA (US);
G. Tyson Tuttle, Austin, TX (US);
Gregory A. Hodgson, Pflugerville, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
In one embodiment, the present invention includes an amplifier having a transistor stage coupled between a supply voltage and a bias current. The transistor stage has an input to receive a radio frequency (RF) input signal obtained from an antenna. The amplifier has an input impedance that is unmatched to a source impedance of the antenna. In some embodiments, this unmatched input impedance may be substantially greater than the source impedance, and may further be controlled based on a strength of the RF input signal.