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:
Mar. 20, 2018
Filed:
Oct. 07, 2016
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventors:
Assignee:
MEDIATEK INC., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/38 (2006.01); H03F 3/45 (2006.01); H03F 3/19 (2006.01); H03F 3/21 (2006.01); H03F 1/32 (2006.01); H03F 1/56 (2006.01); H03F 3/26 (2006.01); H03H 7/40 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45076 (2013.01); H03F 1/3211 (2013.01); H03F 1/565 (2013.01); H03F 3/19 (2013.01); H03F 3/211 (2013.01); H03F 3/26 (2013.01); H03F 3/45071 (2013.01); H03H 7/38 (2013.01); H03H 7/40 (2013.01); H03F 2200/171 (2013.01); H03F 2200/387 (2013.01); H03F 2200/411 (2013.01); H03F 2200/451 (2013.01); H03F 2203/45116 (2013.01);
Abstract
A matching network circuit for RF power amplifier circuit capable of odd harmonic rejection and even harmonic rejection in the differential mode and the common mode, respectively. The matching network circuit includes a differential mode filter with a differential resonant frequency and a passive component coupled to a virtual short circuit node at the differential mode filter, wherein a common mode filter with a common resonant frequency includes the differential mode filter and the passive component. As a result, two notch filters with different resonant frequencies are utilized for the common mode and the differential mode, respectively.