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:
Oct. 26, 2004
Filed:
Dec. 19, 2002
Yoshikazu Nishimura, Kawasaki, JP;
Abstract
A high-frequency circuit includes a bias circuit to which a gain control voltage is input and which controls gains of transistors arranged in the bias circuit in accordance with the gain control voltage, and a band-switching circuit which switches a band and through which a reference current runs. The band-switching circuit includes two transistors electrically connected in cascode to each other, one of the two transistors which is located downstream of the other has a gate electrically connected to a gain control voltage terminal through which the gain control voltage is input, and each of the two transistors is comprised of a complete enhancement mode field effect transistor. The bias circuit includes a pair of transistors and a band-switching transistor. The band-switching transistor is electrically connected in series to a line through which the gain control voltage is supplied, and the gain control voltage is applied to the pair of transistors through the band-switching circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile