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. 10, 1984
Filed:
May. 14, 1982
Applicant:
Inventor:
William L Lehmann, Indianapolis, IN (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; H03F / ;
U.S. Cl.
CPC ...
455195 ; 455179 ; 455197 ; 334 15 ; 330305 ;
Abstract
A radio frequency (RF) amplifier including a resonant circuit having a peaked response is tunable in response to a tuning voltage to select RF carriers over a wide range of frequencies and includes an additional resonant circuit for improving its response at the low frequency end of that range. The additional resonant circuit has a peaked response tunable in response to the tuning voltage in tracking relationship to that of the first resonant circuit. The tracking relationship is desirably selected so that the additional resonant circuit does not become tuned to a frequency which is an integral sub-multiple of the frequency of a selected RF carrier.