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:
Jul. 27, 2004
Filed:
Oct. 11, 2002
John H. Hong, Thousand Oaks, CA (US);
Jinho Jeong, Seoul, KR;
Won Ko, Seoul, KR;
Nyuntae Kim, Seoul, KR;
Youngwoo Kwon, Seoul, KR;
Kyushik Hong, Thousand Oaks, CA (US);
John Hyunchul Hong, Thousand Oaks, CA (US);
Caldera Micro Technology, Inc., Oxnard, CA (US);
Abstract
A variable bandwidth, distributed amplifier circuit includes an input transmission line; an output transmission line; and a plurality of amplifier cells having a respective plurality of cell inputs distributed along the input transmission line and cell outputs distributed along said output transmission line. Each amplifier cell comprises a cascode amplifier having an input transistor, an output transistor, and a variable impedance device in a circuit branch coupled to a gate of the output transistor. The impedance of the variable impedance device is responsive to a variable bias control signal.