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:
Oct. 29, 2002
Filed:
Jan. 27, 1997
Applicant:
Inventors:
Hiroshi Komurasaki, Tokyo, JP;
Hisayasu Satoh, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 1/04 ; H03D 7/14 ;
U.S. Cl.
CPC ...
H03B 1/04 ; H03D 7/14 ;
Abstract
A mixer circuit having a high conversion gain which is excellent in linearity comprises an amplifier ( A) for amplifying one of two signals to be mixed with each other. The amplifier ( A) comprises a low-pass filter ( ) not damping an input voltage (v ) of a frequency (f ) on a negative feedback circuit for its output. Due to the low-pass filter ( ), it is possible to reduce harmonics by increasing the feedback amount as the frequency is increased.