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. 07, 2023
Filed:
Aug. 31, 2021
Applicant:
Intrinsix Corp., Marlborough, MA (US);
Inventor:
Kathiravan Krishnamurthi, Westford, MA (US);
Assignee:
INTRINSIX CORP., Marlborough, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03B 19/00 (2006.01); H03B 19/14 (2006.01); H03B 19/18 (2006.01); H04B 1/10 (2006.01); H04B 1/40 (2015.01);
U.S. Cl.
CPC ...
H03B 19/14 (2013.01); H03B 19/18 (2013.01); H04B 1/1036 (2013.01); H04B 1/40 (2013.01); H04B 2001/1063 (2013.01); H04B 2001/1072 (2013.01);
Abstract
This frequency tripler system uses a cascade of integrated transistor circuit differential limiting amplifiers and tunable notch filters that can directly serve one or more outputs, such as a direct clock or local oscillator drive. With this topology, filtering is distributed between two or more stages of differential limiting amplifiers and tunable notch filters. This enables suppression of smaller fundamental tone by the differential limiting amplifiers along with the tunable notch filters and yields a strong third harmonic signal to directly drive high performance mixers and digital-to-analog converters.