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.

Date of Patent:
Dec. 02, 2014

Filed:

Jun. 23, 2009
Applicants:

Péter Onódy, Budapest, HU;

Attila Zolomy, Budapest, HU;

Eric Unruh, San Jose, CA (US);

Inventors:

Péter Onódy, Budapest, HU;

Attila Zolomy, Budapest, HU;

Eric Unruh, San Jose, CA (US);

Assignee:

Silicon Laboratories Inc., Austin, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/40 (2006.01); H04M 1/00 (2006.01); H03H 11/30 (2006.01); H01P 1/213 (2006.01); H03F 1/56 (2006.01); H03H 7/38 (2006.01); H03F 3/195 (2006.01); H03F 1/52 (2006.01);
U.S. Cl.
CPC ...
H01P 1/213 (2013.01); H03H 11/30 (2013.01); H03F 2200/387 (2013.01); H03F 2200/222 (2013.01); H03F 2200/294 (2013.01); H03F 1/56 (2013.01); H03H 7/38 (2013.01); H03F 3/195 (2013.01); H03F 1/52 (2013.01);
Abstract

In an embodiment, a circuit device for coupling to an antenna includes a first impedance matching circuit configured to couple to the antenna and a second impedance matching circuit configured to couple to the antenna. The circuit device further includes a power amplifier coupled to the first impedance matching circuit and includes a low-noise amplifier coupled to the second impedance matching circuit. Additionally, the circuit device includes a selectable impedance adjustment circuit coupled between the low-noise amplifier and the second impedance matching circuit, which selectable impedance adjustment circuit is configured to selectively adjust an impedance associated with the low-noise amplifier when the power amplifier is transmitting a signal through the antenna.


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