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. 08, 1992
Filed:
Aug. 21, 1991
Donald R Green, Jr, Spring Township, Berks County, PA (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
A reduced loss coupling technique for combining multiple, parallel, gain-stages to form an amplifier. A first transmission line, with multiple taps, couples the inputs of the gain-stages together and to an input port for the amplifier. A second transmission line, also with multiple taps, couples the outputs of the gain-stages together and to an ouput port for the amplifier. Preferably, the output port is connected to the end of the second transmission line while the input port is connected asymmetrically (off center) along the first transmission line. The actual position of the input port along the first transmission line is determined by the desired amount of phase mismatch of between signal paths through all of the gain-stages as measured from the input port to the output port.