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:
Jul. 19, 2016

Filed:

Dec. 10, 2009
Applicants:

Albert Chia-wen Jerng, Los Gatos, CA (US);

Jen-wei Ko, Cupertino, CA (US);

Weijun Yao, Mountain View, CA (US);

Eric Chiyuan LU, San Jose, CA (US);

Inventors:

Albert Chia-Wen Jerng, Los Gatos, CA (US);

Jen-Wei Ko, Cupertino, CA (US);

Weijun Yao, Mountain View, CA (US);

Eric Chiyuan Lu, San Jose, CA (US);

Assignee:

MEDIATEK INC., Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/44 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
H04B 1/44 (2013.01); H04B 1/00 (2013.01);
Abstract

A radio transceiver is disclosed. The transceiver comprises an integrated circuit. The integrated circuit comprises a transmit path; a first switch coupled in series with the output of the transmit path; a receive path; and a second switch coupled as a shunt with the input of the receive path. The transceiver further comprises a plurality of external matching networks coupled to the transmit and receive paths of the integrated circuit to ensure minimal loading from one path to the other. The transceiver also comprises a shared balun for converting differential signals from the plurality of external matching networks to single ended signals; and an antenna to interface with the single ended signals. A method and system in accordance with an embodiment enables tying together the transmit path and the receive paths of a radio transceiver without the need for an external T/R switch. A method and system in accordance with an embodiment minimizes the loading effects between the transmit path and the receive path such that output power and NF noise figure are not degraded after tying the transmit path and the receive path together.


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