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:
Apr. 03, 2001
Filed:
Jan. 07, 1998
Applicant:
Inventor:
Viatcheslav I Souetinov, Swindon, GB;
Assignee:
Motel Semiconductor Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06G 7/016 ;
U.S. Cl.
CPC ...
G06G 7/016 ;
Abstract
Mixer circuit,receives a single-ended rf voltage signal on terminal,and a bias potential on terminal,. Transistor,functions as a transconductance amplifier and presents a current signal, representative of the input voltage signal, to mixer core,. Inductor,provides noiseless degeneration in the base-emitter circuit of transistor,. Local oscillator driver,is configured such that its common mode output impedance is higher than the input impedance of transistors,and,. In this way, phase splitting is carried out within the mixer core,itself and less transistors are needed. Mixer circuit,thereby requires less voltage headroom than prior art mixers.