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:
Sep. 11, 2001
Filed:
Dec. 07, 1999
Gopal Raghavan, Thousand Oaks, CA (US);
Michael G. Case, Thousand Oaks, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
A method to design and fabricate circuits is disclosed which will permit such circuits to operate at higher frequencies. The method is particularly adapted to integrated digital circuits, and to differential sections of such circuits, but may be applied more broadly. A load on the output of an amplifying section of the circuit is designed employing a section of high impedance inductive transmission line nearest the output node, which is then connected to a section of low impedance capacitive transmission line, and then is terminated into a resistor which provides the 0 Hz load for the circuit. By reducing the effect of the resistor portion of the load, the capacitive transmission line section permits the entire load, as seen at the output of the amplifying section, to appear more ideally inductive than has previously been achieved. Due to this inductive appearance, response times are improved and the circuit is able to operate at significantly higher frequencies.