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. 13, 2002
Filed:
Oct. 28, 1999
Applicant:
Inventors:
Assignee:
STMicroelectronics S.r.l., Agrate Brianza, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/28 ;
U.S. Cl.
CPC ...
H04B 1/28 ;
Abstract
A low-noise quadrature phase I-Q modulator having a pair of Gilbert cell input stages driven by a feed voltage line and receiving in input respective square wave command signals coming from a local oscillator. The modulator comprises a transistor block with transistors connected to each cell and destined to carry out a voltage-current conversion of a signal in radio frequency received from the block itself; such block further including a single degeneration resistance.