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:
Jan. 20, 1981
Filed:
Dec. 21, 1978
Gustaf J Rast, Jr, Huntsville, AL (US);
Thomas A Barley, Huntsville, AL (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
An apparatus and method for extending the frequency range of a synthesizer r signal generator upward by several orders of multiplication. The basic stability of the synthesizer or generator is maintained at the higher frequency output. The output band of frequencies from a frequency synthesizer is processed through a homodyne multiplier and multiplied. The multiplied output is coupled to a power divider. The divider output is coupled to bandpass filters allowing selection of harmonic multiples from overlapping frequency bands to be made. A low pass filter in the circuit allows reduction in harmonics and higher order frequencies.