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. 05, 2021
Filed:
Jun. 01, 2018
Nec Corporation, Tokyo, JP;
Takahiro Miyamoto, Tokyo, JP;
Norihisa Shiroyama, Kanagawa, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A tunable bandpass filter (A) includes a waveguide (); a plurality of resonators () housed in the waveguide () and arranged in the lengthwise direction of the waveguide (); a coupling member () disposed between two adjacent resonators (); a ridge member () extending in the lengthwise direction of the waveguide () and connected to one end of the coupling member (); and a dielectric plate () extending in the lengthwise direction of the waveguide (), disposed adjacent to the plurality of resonators () in a direction orthogonal to the lengthwise direction of the waveguide (), and movable in the direction orthogonal to the lengthwise direction of the waveguide ().