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:
May. 16, 1995
Filed:
May. 23, 1994
Applicant:
Inventor:
Shankar R Joshi, Elmont, NY (US);
Assignee:
Synergy Microwave Corporation, Paterson, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
H03C / ; H03D / ;
U.S. Cl.
CPC ...
332170 ; 332164 ; 329354 ; 329357 ; 455 21 ; 455 47 ; 455109 ; 455203 ; 455302 ; 455325 ; 327113 ;
Abstract
An improved modulator circuit for mixing a modulation signal with a carrier signal includes first and second harmonic mixers which are operative to produce modulated output signals at an output frequency corresponding to both the sum and the difference of the modulation signal frequency and the even harmonic frequencies of the carrier signal frequency. In one configuration employing a 90.degree. hybrid, the output signals of the harmonic mixers are combined to produce a single sideband modulated output signal. A novel harmonic mixer circuit is also provided along with demodulator circuits and methods of modulating and demodulating modulation signals.