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:
Jun. 05, 1990
Filed:
Jul. 03, 1986
Peter Dimitrijevic, Redondo Beach, CA (US);
Mark Skidmore, Long Beach, CA (US);
Theodore S Fishkin, Lawndale, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
A high speed wide dynamic range variable rate power detector which provides an output signal linearly proportional to the input power level. The invention operates essentially independently of the system computer and provides a gain measurement system effective in the testing of an antenna in a frequency hopping mode. The illustrative embodiment includes a first subcircuit for down converting an RF input signal to a fixed intermediate frequency signal; a second subcircuit for converting the intermediate frequency signal to a DC signal; a third subcircuit for varying the rate of conversion of intermediate frequency signals to DC signals and a fourth subcircuit for providing an output signal which is proportional to the log of the DC signal.