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:
Mar. 10, 1998
Filed:
Jan. 31, 1996
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
An active inductor having a greater inductance, low loss, and which is small is provided by the present invention. The active inductor comprises a common source FET and a cascode-connected common gate FET connected thereto for providing unidirectional feedback. The drain electrode of the front FET and the source electrode of the rear FET, consisting of the common gate cascode FET, are connected together. A resistor is connected at one end to this connection. The two terminals of the active inductor correspond to the other end of the resistor and the source electrode of the common source FET. A frequency independent negative resistance is generated in series with the inductance by this configuration. By properly tuning the resistance of the resistor, it is possible to make the impedance viewed from the two terminals to have inductance component only, and therefore an active inductor having less resistance loss is obtained.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile