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. 27, 1992
Filed:
May. 30, 1991
Yasunori Tateno, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A switching circuit comprises a transmission line having a specific impedance value and connected to an input terminal, a first switching portion including a plurality of first transistors connected in parallel between the transmission line and the ground, and a second switching portion including a second transistor and a resistor connected in parallel between the transmission line and an output terminal. The first transistors of the first switching portion and the second transistor of the second switching portion are complementally switched. Consequently, the switching circuit can be enabled to impedance-match with an objective circuit (for example, a measurement apparatus, a transceiver, a phased array system, and the like), and loss of signal transfer can be decreased regardless of the switching ON or OFF states of the switching circuit.