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:
Nov. 19, 2019
Filed:
Jan. 15, 2018
National Taiwan University, Taipei, TW;
NATIONAL TAIWAN UNIVERSITY, Taipei, TW;
Abstract
A tunable filter includes a first circuit and a second circuit. In both of them, the first inductor and the second inductor are connected in serial, and further connected with the first capacitor in parallel. The first end of the second capacitor is connected between the first inductor and the second inductor, and the second end of the second capacitor is grounded. The first end of the first capacitor of the first circuit is coupled to the input end of the tunable filter through a first coupling capacitor. The second end of the first capacitor of the first circuit is coupled to the first end of the first capacitor of the second circuit through a second coupling capacitor. The second end of the first capacitor of the second circuit is coupled to the output end of the tunable filter through a third coupling capacitor.