Title:
積層チップバンドパスフィルタ
Document Type and Number:
Japanese Patent JP6793829
Kind Code:
B2
Abstract:
Provided is a stacked sheet-type bandpass filter, comprising a ceramic substrate and six resonators, the resonators all being three-layer stripline resonators, wherein first, third and fifth order stripline resonators among the six resonators are located on a lower plane, and second, fourth and sixth order stripline resonators are located on an upper plane. The stacked sheet-type bandpass filter also comprises a Z-shaped coupling line which cross-couples the second and fourth order stripline resonators. The three-layer striplines of the six three-layer stripline resonators form two additional flat load capacitances, so that the length of the resonator is far smaller than 1/4 of the wavelength. The six resonators are arranged on the two planes at different heights, so as to utilise the vertical space and shorten the horizontal distance while ensuring a same coupling amount, so that the stacked sheet-type bandpass filter has a higher degree of integration, a small size, a low passband insertion loss, a high stop band rejection, and good reliability.
More Like This:
| JPS61218201 | DIELECTRIC FILTER |
| JP2869332 | INDUSTRIAL APPLICABILITY: Dielectric filter and method for manufacturing the same. |
| JPS63131601 | STRIP LINE FILTER |
Inventors:
Rei Yanbayashi
肖 ▲倩▼
Zhu Jian Hana
Liu Season
Zhou Rei Ki
King Wu Hana
肖 ▲倩▼
Zhu Jian Hana
Liu Season
Zhou Rei Ki
King Wu Hana
Application Number:
JP2019524398A
Publication Date:
December 02, 2020
Filing Date:
March 27, 2019
Export Citation:
Assignee:
Shenhua Electronic Electronics Co., Ltd.
International Classes:
H01P1/205; H01P1/203; H01P7/08
Domestic Patent References:
| JP9148802A | ||||
| JP63283201A | ||||
| JP5088002U | ||||
| JP8056103A | ||||
| JP60098902U | ||||
| JP2008092113A |
Foreign References:
| US5442330 | ||||
| KR1020090035342A |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe