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:
Jun. 13, 1995
Filed:
Apr. 28, 1993
Kazuhiko Nakahara, Itami, JP;
Naoto Andoh, Itami, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A switched line phase shifter includes at least three transmission lines having different electrical lengths disposed between an input terminal and an output terminal and connectable in parallel to each other, at least three input side FET switches for connecting and disconnecting the input terminal and the input ends of the transmission lines, and at least three output side FET switches for connecting and disconnecting the output terminal and the output ends of the transmission lines. As many signal transmission paths as transmission lines are produced between the input terminal and the output terminal by controlling the input side and the output side FET switches. When one of the signal transmission paths is selected as a reference and a signal is transmitted through the remaining at least two signal transmission paths, at least two different phase shift quantities are obtained in the phase shifter.