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:
Mar. 29, 2016

Filed:

Aug. 22, 2014
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Ravikanth Suravarapu, Austin, TX (US);

Saravanan Rajapandian, Austin, TX (US);

Narayanan Baskaran, Austin, TX (US);

Caiyi Wang, Austin, TX (US);

Jing Li, Austin, TX (US);

Assignee:

MEDIATEK INC., Science-Based Industrial Park, Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/00 (2006.01); H04B 1/40 (2015.01); H04B 1/00 (2006.01); H04L 5/12 (2006.01); H04W 88/12 (2009.01); H03G 3/30 (2006.01);
U.S. Cl.
CPC ...
H03G 3/3036 (2013.01);
Abstract

A receiver includes LNA-mixer arrangement, a current buffer arrangement and an analog filter arrangement. The LNA-mixer arrangement receives a plurality of input signals and provides a wide-band input match for a specified frequency range of operation. The LNA-mixer arrangement includes a plurality of LNA structures and a plurality of mixer structures where each of the LNA structure path is coupled to a single mixer structure. The LNA-mixer arrangement outputs a first signal. The current buffer arrangement receives the first signal and reduces the Image Rejection (IR) asymmetry between the high frequency portion and the low frequency portion of the first signal as well as provides a gain to the first signal. The current buffer arrangement outputs a second signal. The analog filter arrangement receives the second signals and perform filtering and calibration.


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