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1. US20190157731 - Band-pass filter and control method thereof

Office United States of America
Application Number 16301827
Application Date 02.05.2017
Publication Number 20190157731
Publication Date 23.05.2019
Grant Number 10763561
Grant Date 01.09.2020
Publication Kind B2
IPC
H01P 1/203
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE
1Auxiliary devices
20Frequency-selective devices, e.g. filters
201Filters for transverse electromagnetic waves
203Strip line filters
H01P 7/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE
7Resonators of the waveguide type
08Strip line resonators
H01P 1/20
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE
1Auxiliary devices
20Frequency-selective devices, e.g. filters
H01P 1/205
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE
1Auxiliary devices
20Frequency-selective devices, e.g. filters
201Filters for transverse electromagnetic waves
205Comb or interdigital filters; Cascaded coaxial cavities
H01P 7/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE
7Resonators of the waveguide type
04Coaxial resonators
CPC
H01P 1/203
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
1Auxiliary devices
20Frequency-selective devices, e.g. filters
201Filters for transverse electromagnetic waves
203Strip line filters
H01P 1/20
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
1Auxiliary devices
20Frequency-selective devices, e.g. filters
H01P 1/205
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
1Auxiliary devices
20Frequency-selective devices, e.g. filters
201Filters for transverse electromagnetic waves
205Comb or interdigital filters; Cascaded coaxial cavities
H01P 1/20345
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
1Auxiliary devices
20Frequency-selective devices, e.g. filters
201Filters for transverse electromagnetic waves
203Strip line filters
20327Electromagnetic interstage coupling
20336Comb or interdigital filters
20345Multilayer filters
H01P 7/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
7Resonators of the waveguide type
04Coaxial resonators
H01P 7/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
7Resonators of the waveguide type
08Strip line resonators
Applicants NEC Corporation
Inventors Takahiro Miyamoto
Priority Data 2016-101808 20.05.2016 JP
Title
(EN) Band-pass filter and control method thereof
Abstract
(EN)

There is provided a band-pass filter capable of easily changing a bandwidth of a pass band. A band-pass filter (1B) of the present disclosure includes: a housing (11), a plurality of resonant plates (12) stored in the housing (11), a first coupling conductor (15) connecting two adjacent resonant plates (12) of the plurality of resonant plates (12), and a second coupling conductor (16) arranged at a position affecting a coupling coefficient between the two adjacent resonant plates (12), wherein a distance from the resonant plate (12) to the second coupling conductor (16) is changeable.

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