Unlock instant, AI-driven research and patent intelligence for your innovation.

Coaxial dual-mode resonator and filter

A dual-mode resonator and filter technology, which is applied to resonators, waveguide-type devices, electrical components, etc., can solve the problem of reducing the number of filter resonators, difficult to achieve low-profile multi-mode filters, and difficult to achieve miniaturization. Low posture, etc.

Active Publication Date: 2015-08-05
NIHON DENGYO KOSAKU CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to achieve miniaturization and low profile in conventional semi-coaxial resonators
On the other hand, in a multimode filter using a multimode resonator, although one resonator utilizes two or more resonant modes, the number of resonators necessary for the filter as a whole is reduced, but the multimode filter It is also difficult to achieve a low posture in the device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Coaxial dual-mode resonator and filter
  • Coaxial dual-mode resonator and filter
  • Coaxial dual-mode resonator and filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0037] figure 1 It is a schematic perspective view showing the outline of a coaxial dual-mode resonator according to an embodiment of the present invention.

[0038] figure 2 is a diagram for explaining the internal structure of the coaxial dual-mode resonator of the embodiment of the present invention, and the diagram (a) is in figure 1 In the coaxial dual-mode resonator shown, the figure seen after peeling off the top plate part of the outer conductor, this figure (b) is in figure 1 In the coaxial dual-mode resonator shown, it is seen after peeling off the side part of the outer conductor.

[0039] exist figure 1 , figure 2Among them, 1 is a rectangular parallelepiped outer conductor, and 2 is a flat inner conductor. The inner conductor 2 has a quadrangular planar shape, and the inner conductor 2 is fixed to the metal support 3 with screws or the like. Furthermore, the metal post 3 is fixed to the outer conductor 1 by screws or the like.

[0040] In this case, the o...

Embodiment 2）

[0061] Figure 6 It is a schematic perspective view showing the outline of a bandpass filter using the coaxial dual-mode resonator according to Embodiment 2 of the present invention.

[0062] Figure 7 It is a diagram for explaining the internal structure of a bandpass filter using a coaxial dual-mode resonator according to an embodiment of the present invention, in Figure 6 View after stripping the side section of the outer conductor in the filter shown.

[0063] exist Figure 6 , Figure 7 Among them, 1 is an external conductor, 21, 22, and 23 are internal conductors, 3 is a metal pillar, 4 is an input and output terminal, 6 is an adjusting screw for dual-mode coupling, 8 is a screw for adjusting the coupling amount, and 91 and 92 are partition walls.

[0064] The filter of the second embodiment is characterized in that the coaxial dual-mode resonators of the above-mentioned embodiments are stacked in three stages.

[0065] The planar shape of the internal conductors (...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a coaxial dual-mode resonator which possesses a smaller size, a lower height and lower loss compared to the prior coaxial dual-mode resonator. The coaxial dual-mode resonator possesses the components as following: an external conductor; a tabulate internal conductor which is arranged in the external conductor, wherein the flat shape of the internal conductor possesses a pair of edges along the X-axis direction perpendicular with a pair of edges along the Y-axis direction, the internal conductor possesses a first resonant mode along the X-axis direction and a second resonant mode along the Y-axis direction, the coaxial dual-mode resonator possesses a column (an insulative column or a metal column) which fixes the center of the quadrangle of the internal conductor with the external conductor, one of the four angles of the quadrangle is conversed. The coaxial dual-mode resonator possesses an input terminal which is arranged at any surface of the external conductor coupling to the first resonent mode of the internal conductor and an output terminal which is arranged at the surface of the external conductor and coupling to the second resonent mode of the internal conductor.

Description

technical field [0001] The present invention relates to a coaxial dual-mode resonator and a filter, in particular, to a coaxial dual-mode resonator in which two resonant modes are degenerated in one physical space (inside the resonator) and a coaxial dual-mode resonator using the coaxial dual-mode mode resonator filter. Background technique [0002] In wireless communication devices and the like, filters using so-called single-mode resonators in which one resonator has one resonance mode are often used. Among single-mode resonators, there is, for example, a semi-coaxial resonator using metal. This resonator is constituted by electrically contacting and fixing one end of a cylindrical metal to the metal box within a metal box electrically shielded from the outside by screws or soldering. [0003] A single-mode resonator is arranged in a cutoff waveguide when constituting a filter, and achieves desired filter characteristics by magnetic or electric field coupling with adjace...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01P7/04H01P1/203
Inventor 八田隆司井上干巳
Owner NIHON DENGYO KOSAKU CO LTD