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:
Aug. 04, 2020
Filed:
Dec. 27, 2019
Industrial Technology Research Institute, Hsin-Chu, TW;
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsin-Chu, TW;
Abstract
A switch-type phase shifter including a phase shifting unit is provided. The phase shifting unit includes two half circuits and a first switch connected to the half circuits and receiving a first control signal. Each half circuit includes a first variable capacitor, a second variable capacitor, a second switch and a variable inductor. The two ends of the first variable capacitor are coupled to the input and the control nodes of the half circuit respectively. The two ends of the second variable capacitor are coupled to the output and control nodes of the half circuit respectively. The first and second ends of the second switch are coupled to the output and input nodes respectively, and the third end thereof is coupled to the control node and receives a second control signal. The two ends of the variable inductor are coupled to the input and output nodes respectively.