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:
Aug. 04, 1992
Filed:
Nov. 30, 1989
Applicant:
Inventors:
Ward S Titus, Cambridge, MA (US);
Paul A Bernkopf, Waltham, MA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455323 ; 455319 ; 455333 ; 333138 ;
Abstract
A matrix mixer includes an amplifier having a plurality of successively coupled transistors and a mixer stage comprised of a plurality of mixer elements successively connected by a common transmission line to output of the plurality of transistors of the amplifier. A matrix provides a circuit having improved gain characteristics and improved isolation between the local oscillator and the input RF signal terminals. Moreover, due to shared transmission lines, smaller circuit sizes is also provided.