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:
May. 22, 2018
Filed:
Jul. 24, 2015
University of Yamanashi, Kofu-shi, Yamanashi, JP;
The Japan Steel Works, Ltd., Shinagawa-ku, Tokyo, JP;
Naoto Sekiya, Kofu, JP;
Katsuhiro Terao, Tokyo, JP;
Kazuhito Kishida, Tokyo, JP;
Yasuo Sato, Yokohama, JP;
Noritaka Kitada, Yokohama, JP;
UNIVERSITY OF YAMANASHI, Kofu-shi, Yamanashi, JP;
THE JAPAN STEEL WORKS, LTD., Shinagawa-ku, Tokyo, JP;
Abstract
A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod having a circular cross section is provided in the space above the respective stubs and another dielectric rod having a circular cross section is provided in the space above the half-wavelength resonator protrusions.