JPH07336102A - Tm multiplex mode dielectric resonator device - Google Patents

Abstract

PURPOSE:To facilitate frequency adjustment, to prevent Q from being lowered and to easily enhance a coupling coefficient between resonators at need. CONSTITUTION:Composite dielectric poles 10a, 10b are arranged so that a plane formed by each composite dielectric pole can be almost continued, and dielectric poles 12a, 12b are magnetically coupled via a window 30 for magnetic coupling. In this way, frequency adjustment can be performed on all the resonators in the same direction, and also, the prescribed number of dielectric poles out of the dielectric poles which constitute the composite dielectric pole can be magnetically coupled selectively. Also, since a large window for magnetic coupling can be arranged between adjacent dielectric resonators, the dielectric poles whose axial directions are set in parallel out of two composite dielectric poles can be coupled comparatively firmly with two another dielectric poles intersecting respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TM multimode dielectric resonator device provided with a composite dielectric column having a shape in which two dielectric columns are crossed in a space surrounded by an outer conductor. .

[0002]

FIG. 21 shows the structure of a conventional TM multimode dielectric resonator device provided with a composite dielectric column having a shape in which a plurality of dielectric columns are crossed. In FIG. 21, 10
Reference numerals a and 10b are composite dielectric pillars each having a shape in which two dielectric pillars are crossed, and are integrally formed with the cavities 15a and 15b having outer conductors formed on the outer surfaces thereof. The two TM multimode dielectric resonators are arranged such that the planes formed by the composite dielectric columns are parallel to each other, and the partition plate 44 is arranged between the two. This partition board 4
4 acts as a magnetic field coupling window for selectively transmitting only the magnetic field component in a predetermined direction between the two TM multimode dielectric resonators. Further, as shown in FIG.
a and 10b have frequency adjusting holes 13a, 14a, 13
b and 14b are provided, and the cavities 15a and 15b are provided with holes 41 for holding the frequency adjusting members in and out of the frequency adjusting holes 13a, 13b, 14a and 14b.
a, 42a, 41b, 42b are provided, and the frequency of the resonator is adjusted by each dielectric pillar by inserting and removing the frequency adjusting member into and from these holes. Further, the cavities 15a and 15b are provided with holes 43a and 4 for holding the coupling adjusting member in the cavity space so that the coupling adjusting member can be inserted and removed.
3b is provided, and coupling adjustment members are inserted into and removed from these holes to perform coupling adjustment between the resonators by the two dielectric columns intersecting each other.

[0003]

SUMMARY OF THE INVENTION Such a conventional TM
In the multimode dielectric resonator device, since the composite dielectric columns are arranged such that the planes formed by the composite dielectric columns are parallel to each other, two dielectrics of the composite dielectric columns whose axial directions are parallel to each other are provided. The pillars can be strongly connected.
However, since the structure for adjusting the resonance frequency of each resonator by inserting and removing the frequency adjusting member from two directions with respect to the composite dielectric column, the adjustment work is not easy, and the arrow in FIG. As shown, the holes 41 and 42 for holding the frequency adjusting member and the hole 43 for holding the coupling adjusting member are present in the current path of the actual current, which causes the Q of the resonator to decrease. Was becoming.

In order to adjust the resonance frequency of each resonator from one direction, it is sufficient that the planes formed by the composite dielectric columns are the same, but a predetermined one of two adjacent composite dielectric columns is used. Dielectric columns must be selectively magnetically coupled to each other. Moreover, if the selectivity is not high, the leak coupling of the dielectric columns that should be uncoupled reduces the Q of the resonator due to the dielectric columns. Further, for example, in the case of configuring a wide band bandpass filter, it is necessary to strengthen the magnetic field coupling between the dielectric columns to be coupled to increase the coupling coefficient between the resonators by the dielectric columns.

An object of the present invention is to facilitate frequency adjustment, prevent deterioration of Q, and selectively couple predetermined dielectric columns among adjacent composite dielectric columns to a TM multimode dielectric. It is to provide a resonator device.

Another object of the present invention is to arrange two composite dielectric columns such that the planes formed by the composite dielectric columns are the same, and two adjacent composite dielectric columns have substantially the same axial direction. Another object of the present invention is to provide a TM multimode dielectric resonator device in which the coupling coefficient between the two resonators including is increased.

[0007]

According to a first aspect of the present invention, there is provided a TM multimode dielectric resonator device, wherein a composite dielectric pillar having a shape in which two dielectric pillars are crossed is surrounded by an outer conductor. In the TM multi-mode dielectric resonator device provided in the enclosed space, a plurality of composite dielectric columns are arranged such that the planes formed by the composite dielectric columns are substantially the same plane.
A slit-shaped conductor non-forming portion is arranged between two adjacent composite dielectric columns along the direction of the magnetic field generated by the two dielectric columns of the two composite dielectric columns whose axial directions are parallel to each other. A magnetic field coupling window is provided to selectively magnetically couple the two dielectric columns.

A TM multimode dielectric resonator device according to a second aspect of the present invention is provided with a composite dielectric pillar having a shape in which two dielectric pillars are crossed, in a space surrounded by an outer conductor. In the TM multimode dielectric resonator device, a plurality of composite dielectric columns are arranged such that the planes formed by the composite dielectric columns are substantially the same plane, and the two composite dielectric columns are arranged between two adjacent composite dielectric columns. A magnetic field coupling window is formed by arranging slit-shaped conductor non-forming portions along the direction of the magnetic field generated by the two dielectric columns whose axial directions are substantially the same among the two composite dielectric columns. It is characterized in that two dielectric columns are selectively magnetically coupled to each other.

According to a third aspect of the present invention, a TM multimode dielectric resonator device is provided with a composite dielectric pillar having a shape in which two dielectric pillars are crossed in a space surrounded by an outer conductor. In the TM multi-mode dielectric resonator device, the axial direction of the other two dielectric columns that are adjacent to each other and are axially substantially parallel to each other is not parallel to each other. In addition, a plurality of composite dielectric columns are arranged such that the surfaces formed by the composite dielectric columns are substantially continuous, and slit-shaped conductor non-forming portions are arranged along the direction of the magnetic field generated by the two dielectric columns. And a magnetic field coupling window is formed to selectively magnetically couple the two dielectric columns.

A TM multimode dielectric resonator device according to a fourth aspect of the present invention is provided with a composite dielectric pillar having a shape in which two dielectric pillars are crossed in a space surrounded by an outer conductor. In the TM multi-mode dielectric resonator device, the axes of the other two dielectric columns that are adjacent to each other and intersect with the dielectric columns whose axial directions are substantially parallel to each other are substantially parallel to each other. A magnetic field coupling window is formed by intersecting the axes of different dielectric columns in different planes, and arranging slit-shaped conductor non-forming portions along the direction of the magnetic field generated by these two dielectric columns. The two dielectric columns are selectively magnetically coupled to each other.

[0011]

In the TM multimode dielectric resonator device according to the first aspect of the present invention, a plurality of composite dielectric columns are arranged such that the planes formed by the composite dielectric columns are substantially the same plane, and magnetic coupling is performed. Through the window, of the two adjacent composite dielectric columns, two dielectric columns whose axial directions are parallel to each other are selectively magnetically coupled to each other.

FIG. 1 is a conceptual diagram showing a structural example of a TM multimode dielectric resonator device according to the first aspect. In FIG. 1, reference numerals 10a and 10b denote composite dielectric columns each having a shape in which two dielectric columns are crossed, and each of them is surrounded by an outer conductor indicated by a chain line. These two composite dielectric columns 1
0a and 10b are arranged such that the surfaces formed by them are substantially the same plane, and the two composite dielectric columns 10a and 10b are arranged.
A magnetic field coupling window 30 composed of a slit-shaped conductor non-formation portion indicated by 30 is arranged on the outer conductor in between. The frequency adjusting holes 13a and 14 for inserting and removing the frequency adjusting member in the direction perpendicular to the plane formed by the composite dielectric columns 10a and 10b.
By providing a, 13b, and 14b, it becomes possible to insert and remove all the frequency adjusting members from the same surface in the same direction. Further, at that time, since the hole provided in the outer conductor for inserting and removing the frequency adjusting member does not interfere with the actual current, the Q of the resonator is not lowered.

FIG. 2 shows the operation of the magnetic field coupling window shown in FIG. However, in FIG. 2, the outer conductor around the composite dielectric pillar is omitted. As shown in FIG. 2, the composite dielectric pillar 10a,
Two dielectric columns 11 having axial directions parallel to each other among 10b
Since a magnetic field coupling window 30 including a slit-shaped conductor non-forming portion is provided along the magnetic field (arrow H in the figure indicates the magnetic field direction) generated by a and 11b,
The two dielectric columns 11a and 11b are magnetically coupled to each other.

In the TM multimode dielectric resonator device according to the second aspect of the present invention, a plurality of composite dielectric columns are arranged such that the planes formed by the composite dielectric columns are substantially the same plane.
Through the magnetic field coupling window, two of the adjacent two composite dielectric columns are selectively magnetically coupled to each other in the axial direction substantially the same as each other.

FIG. 3 is a conceptual diagram showing a structural example of the TM multimode dielectric resonator device according to the second aspect. In FIG. 3, reference numerals 10a and 10b each denote a composite dielectric pillar having a shape in which two dielectric pillars are crossed, and each is surrounded by an outer conductor indicated by a chain line. These two composite dielectric columns 1
0a and 10b are arranged such that the surfaces formed by them are substantially the same plane, and the two composite dielectric columns 10a and 10b are arranged.
A magnetic field coupling window 30 composed of a slit-shaped conductor non-formation portion indicated by 30 is arranged on the outer conductor in between.

FIG. 4 shows the operation of the magnetic field coupling window shown in FIG. However, in FIG. 4, the outer conductor around the composite dielectric pillar is omitted. As shown in FIG. 4, the composite dielectric pillar 10a,
The magnetic field generated by the two dielectric columns 12a and 12b whose axial directions are substantially the same in 10b (indicated by an arrow H in FIG.
Indicates the magnetic field direction. ), The magnetic field coupling window 30 formed of a slit-shaped conductor non-forming portion is provided, so that the two dielectric columns 12a and 12b are magnetically coupled.

In the TM multimode dielectric resonator device according to a third aspect of the present invention, a plurality of composite dielectric columns are arranged such that the surfaces formed by the composite dielectric columns are substantially continuous, and two adjacent composite dielectric columns are arranged. Of the dielectric pillars, the other two dielectric pillars that respectively intersect the dielectric pillars whose axial directions are substantially parallel to each other are selectively magnetically coupled to each other via the magnetic field coupling window.

FIG. 5 shows an example of the structure of the TM multimode dielectric resonator device according to the third aspect. However, as in the case shown in FIG. 2 or 4, the outer conductor around the composite dielectric pillar is omitted. As shown in the figure, each composite dielectric pillar 10a, 1
The other two dielectric columns are arranged such that the surfaces formed by 0b are substantially continuous, and of the two adjacent composite dielectric columns, the two axially parallel dielectric columns 11a and 11b intersect each other. The axial directions of 12a and 12b are made non-parallel. As a result, the region for forming the magnetic field coupling window 30 can be made large, and the two dielectric columns 12 can be formed.
Since the axes of a and 12b are inclined, the magnetic field coupling window 30
The magnetic coupling between the two dielectric columns 12a and 12b via the magnetic field becomes stronger, and the coupling coefficient between the resonators due to the dielectric columns 12a and 12b increases.

In the TM multimode dielectric resonator device according to a fourth aspect of the present invention, a plurality of composite dielectric columns are arranged such that the surfaces formed by the respective composite dielectric columns are substantially continuous, and two adjacent composite dielectric columns are arranged. Of the dielectric pillars, the other two dielectric pillars that respectively intersect the dielectric pillars whose axial directions are substantially parallel to each other are selectively magnetically coupled to each other via the magnetic field coupling window.

FIG. 6 shows an example of the structure of the TM multimode dielectric resonator device according to the fourth aspect. However, the outer conductor around the composite dielectric pillar is omitted. As shown in FIG. 6, the composite dielectric columns are arranged such that the surfaces formed by the composite dielectric columns are substantially continuous, and two adjacent composite dielectric columns 10a, 10 are provided.
b, dielectric columns 11a, 1 whose axial directions are substantially parallel to each other
The other two dielectric columns 1 that intersect with 1b, respectively
The composite dielectric columns are arranged and arranged so that the axes of 2a and 12b intersect the axes of the dielectric columns 11a and 11b in different planes. As a result, the region for forming the magnetic field coupling window 30 can be made large, and the direction of the magnetic field formed by the two dielectric columns 12a and 12b is inclined, so that the two dielectric columns through the magnetic field coupling window 30 are formed. The magnetic coupling between 12a and 12b becomes stronger, and the coupling coefficient between the resonators due to the dielectric columns 12a and 12b increases.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First embodiment corresponding to claims 1 and 2 of the present invention
7 to 10 show the configuration of the TM multimode dielectric resonator device according to the example of FIG.

FIG. 7 is an exploded perspective view showing the structure of one unit of the TM multimode dielectric resonator device. As shown in the figure, the cavity 15 is integrally formed with the composite dielectric pillar 10 which is formed by intersecting two dielectric pillars 11 and 12. Frequency adjusting holes 13 and 14 are formed in the dielectric columns 11 and 12 in a direction perpendicular to a plane formed by the two dielectric columns 11 and 12, respectively. Outer conductors are formed on the four side surfaces of the cavity 15. By joining the upper plate 16 and the lower plate 25 on which the outer conductor is formed to the two openings of the cavity 15, a space surrounded by the outer conductor is formed. The upper plate 16 has bushings 21, 22, 2
4, the screw members 17 and 18 which are a part of the frequency adjusting member are screwed to the bushings 21 and 22, and the coupling adjusting member 23 is screwed to the bushing 24.

FIG. 8 is a diagram showing the structure of a TM multimode dielectric resonator device which is formed by arranging the three units shown in FIG. FIG. 7A is a top view of the unit without the upper plate, and FIG. As shown in the figure, each unit includes three composite dielectric columns 10a, 10
They are arranged so that the planes formed by b and 10c are the same plane, and the adjacent units are joined by the sealant 32. Since each composite dielectric pillar has a groove g formed at the intersection of two dielectric pillars, the two
The two resonators with one dielectric pillar are coupled by the presence of the groove g. In FIG. 3B, 33a and 33c are coaxial connectors, respectively, and coupling loops 34a and 34c are formed between the central conductor and the outer conductor of the coaxial connectors 33a and 33c in the cavity. The coupling loop 34a is magnetically coupled to the dielectric column 12a, and the coupling loop 34c (which forms a loop surface in the direction perpendicular to the paper surface) and the dielectric column 11c are magnetically coupled.

FIG. 9 shows a structure including the composite dielectric columns 10a and 10b of the TM multimode dielectric resonator device shown in FIG.
It is an exploded perspective view showing composition of two units. As shown in FIG. 9, a magnetic field coupling window 30a formed of a slit-shaped outer conductor non-forming portion extending vertically in the drawing is formed on one side surface of the cavity 15a integrally molded with the composite dielectric column 10a. On the other hand, the magnetic field coupling window 30a is formed on one side surface of the cavity 15b integrally formed with the composite dielectric pillar 10b.
The conductor non-forming portion 31b is provided at a position close to the.

By providing the magnetic field coupling window 30a in this way, as shown in FIG. 2, the dielectric columns 11a and 11a are formed.
Magnetic fields are selectively coupled between b.

FIG. 10 is an exploded perspective view showing the configuration of two units including the composite dielectric columns 10b and 10c in the TM multimode dielectric resonator device shown in FIG. Figure 10
As shown in FIG. 5, the magnetic field coupling window 30 is formed on one side surface of the cavity 15b integrally formed with the composite dielectric column 10b, and includes a slit-shaped outer conductor non-forming portion extending horizontally in the drawing.
b is formed. On the other hand, the magnetic field coupling window 3 is formed on one side surface of the cavity 15c integrally formed with the composite dielectric column 10c.
The conductor non-formation portion 31c is provided at a position close to 0b.

By providing the magnetic field coupling window 30b in this manner, as shown in FIG. 4, the dielectric columns 12a and 12a are formed.
Magnetic fields are selectively coupled between b.

With the above-mentioned structure, a TM multimode dielectric resonator device which functions as a bandpass filter composed of 6 stages of resonators can be obtained.

Next, a second aspect of the invention, which corresponds to claim 3,
FIG. 11 shows the configuration of the TM multimode dielectric resonator device according to the example of FIG. This drawing is shown in correspondence with FIG. 8 which is the first embodiment. In this example, as shown in FIG. 11, the surfaces of the three composite dielectric columns 10a, 10b, 10c are arranged in a substantially continuous relationship, and the dielectric columns 12a, 12b of the adjacent composite dielectric columns 10a, 10b are arranged.
Of the composite dielectric columns 10 in which the axial directions of the
Of the b and 10c, the dielectric columns 12b and 12c are made non-parallel in the axial direction.

FIG. 12 shows the cavity 15a shown in FIG.
And FIG. 15B is a view showing the configuration of the magnetic field coupling window formed on the opposite surfaces of FIG.
(B) shows the side surfaces of the cavity 15b. On the side surface of the cavity 15a, a magnetic field coupling window 30a made of a slit-shaped conductor non-forming portion is provided in the vertical direction in the drawing,
A conductor non-forming portion 31b is provided on the side surface of the cavity 15b at a position facing the magnetic field coupling window 30a. With this configuration, the dielectric columns 11a and 11b are selectively magnetically coupled via the magnetic field coupling window 30a.

FIG. 13 shows the cavity 15b shown in FIG.
And FIG. 15C is a plan view showing the configuration of the magnetic field coupling window formed on the opposite surfaces of FIG.
(B) shows the side surfaces of the cavity 15c. On the side surface of the cavity 15b, a magnetic field coupling window 30b formed of a slit-shaped conductor non-forming portion is provided in the horizontal direction in the drawing,
A conductor non-forming portion 31c is provided on the side surface of the cavity 15c at a position facing the magnetic field coupling window 30b. With this configuration, the dielectric columns 12b and 12c are selectively magnetically coupled via the magnetic field coupling window 30b.

Thus, the composite dielectric columns 10a, 10b,
By inclining the dielectric columns 12a, 12b, 12c of 10c, a large magnetic field coupling window can be provided, and the coupling between the dielectric columns can be enhanced and the coupling can be strengthened.

Next, a third aspect of the invention, which corresponds to claim 3,
FIG. 14 shows a structural example of the TM multimode dielectric resonator device according to the embodiment. This drawing is shown in correspondence with FIG. 8 which is the first embodiment. In this example, as shown in the figure, the surfaces of the three composite dielectric columns 10a, 10b, 10c are arranged in a substantially continuous relationship, and the dielectric columns 12a, 12b of the adjacent composite dielectric columns 10a, 10b are Axial directions are made non-parallel and adjacent composite dielectric columns 10
Of the b and 10c, the dielectric columns 12b and 12c are made non-parallel in the axial direction. The structure of the magnetic field coupling window is similar to that of the second embodiment shown in FIGS.

Next, a fourth aspect of the invention, which corresponds to claim 3,
FIG. 15 shows an example of the configuration of the TM multimode dielectric resonator device according to the embodiment. This drawing is shown in correspondence with FIG. 8 which is the first embodiment. Also in this example, as shown in the figure, the surfaces of the three composite dielectric columns 10a, 10b, 10c are arranged in a substantially continuous relationship, and the dielectric columns 12a, 12b of the adjacent composite dielectric columns 10a, 10b are Axial directions are made non-parallel and adjacent composite dielectric columns 10
Of the b and 10c, the dielectric columns 12b and 12c are made non-parallel in the axial direction. The structure of the magnetic field coupling window is similar to that of the second embodiment shown in FIGS.

Next, a fifth aspect of the invention, which corresponds to claim 3,
16 shows an example of the structure of the TM multimode dielectric resonator device according to the embodiment. FIG. 16A corresponds to FIG. 11B which is the second embodiment. FIG.
(B) is a view seen from the BB direction in (A), (C)
[Fig. 6] is a view seen from the CC direction in (A). In this example, as shown in the figure, three composite dielectric columns 10a, 10
The surfaces formed by b and 10c are arranged in a substantially continuous relationship, and the dielectric columns 12b and 12c of the adjacent composite dielectric columns 10b and 10c are made non-parallel in the axial direction. With this structure, the dielectric columns 11a and 11b are provided with the magnetic field coupling window 30a.
And the dielectric columns 12b and 12c are coupled via the magnetic field coupling window 30b. In this way, when the dielectric columns to be magnetically coupled are the dielectric columns 12b and 12c that intersect the parallel dielectric columns, the axial direction of the dielectric columns 12b and 12c is not parallel only at that location. By this, the coupling coefficient between the two resonators by the dielectric columns 12b and 12c is increased.

Next, a sixth aspect of the present invention is described.
FIG. 17 shows a structural example of the TM multimode dielectric resonator device according to the embodiment of FIG. FIG. 17A corresponds to FIG. 11B which is the second embodiment. FIG. 17
(B) is a view seen from the BB direction in (A), (C)
[Fig. 6] is a view seen from the CC direction in (A). In this example, as shown in the figure, the adjacent composite dielectric columns 10b, 1
0c, dielectric columns 11b, 1 whose axial directions are substantially parallel to each other
The other two dielectric columns 1 that intersect with 1c, respectively
The axes of 2b and 12c intersect the axes of the dielectric columns 11b and 11c on different planes. With this structure, the coupling coefficient between the two resonators formed by the dielectric columns 12b and 12c is increased.

Next, a seventh aspect corresponding to the fourth aspect of the present invention
18 shows an example of the structure of the TM multimode dielectric resonator device according to the embodiment. This drawing is shown in correspondence with FIG. 8 which is the first embodiment. In this example, as shown in the figure, one of the three composite dielectric columns 10a, 10b, and 10c is arranged in a substantially continuous relationship, and the other dielectric column adjacent to them is arranged. The axes of 11a, 11b and 11c are connected to the dielectric columns 12a and 1
The axes of 2b and 12c are crossed in different planes.

FIG. 19 shows the cavity 15a shown in FIG.
And FIG. 15B is a view showing the configuration of the magnetic field coupling window formed on the opposite surfaces of FIG.
(B) shows the side surfaces of the cavity 15b. On the side surface of the cavity 15a, a magnetic field coupling window 30a made of a slit-shaped conductor non-forming portion is provided in the vertical direction in the drawing,
A conductor non-forming portion 31b is provided on the side surface of the cavity 15b at a position facing the magnetic field coupling window 30a. With this configuration, the dielectric columns 11a and 11b are selectively magnetically coupled via the magnetic field coupling window 30a.

FIG. 20 shows the cavity 15b shown in FIG.
And FIG. 15C is a plan view showing the configuration of the magnetic field coupling window formed on the opposite surfaces of FIG.
(B) shows the side surfaces of the cavity 15c. On the side surface of the cavity 15b, a magnetic field coupling window 30b formed of a slit-shaped conductor non-forming portion is provided in the horizontal direction in the drawing,
A conductor non-forming portion 31c is provided on the side surface of the cavity 15c at a position facing the magnetic field coupling window 30b. With this configuration, the dielectric columns 12b and 12c are selectively magnetically coupled via the magnetic field coupling window 30b.

In this way, by making the magnetic field coupling window 30b large, the coupling between the dielectric columns 12b and 12c is strengthened, the magnetic field coupling window 30a is made large, and the distance between the dielectric columns 11a and 11b is narrowed. By doing so, the coupling between the dielectric columns 11a and 11b is strengthened.

[0041]

According to the TM multimode dielectric resonator device according to the first, second, third and fourth aspects of the present invention, the frequency adjusting holes are provided in the same direction for all the dielectric columns. Therefore, the frequency can be easily adjusted, and the hole for inserting and removing the frequency adjusting member provided in the cavity does not interfere with the actual current, so that the Q of the resonator does not decrease.

According to the TM multimode dielectric resonator device of the first or second aspect of the present invention, since the planes formed by the composite dielectric columns are arranged in substantially the same plane, By providing the frequency adjusting holes in the direction perpendicular to the plane formed by the composite dielectric pillar, the frequency adjustment can be performed from the same direction for all the resonators, and the composite dielectric pillar constitutes the dielectric pillar. Since predetermined dielectric columns can be selectively magnetically coupled to each other, a plurality of TM multi-mode dielectric resonators can be arranged to facilitate a dielectric resonator device including a plurality of stages of resonators. Can be configured.

According to the TM multimode dielectric resonator device of the third or fourth aspect, the region for forming the magnetic field coupling window can be widened between the adjacent dielectric resonators.
Of the two composite dielectric columns, the other two dielectric columns that intersect each other in the axial direction parallel to each other are inclined, so that the two dielectric columns are also relatively strongly coupled to each other. Therefore, for example, a wide band filter can be easily configured. Further, it is possible to give a high selectivity to the direction of the magnetic field to be transmitted, sufficiently prevent leak coupling between the dielectric columns that should be uncoupled, and prevent the Q of the resonator from decreasing due to the dielectric columns. can do.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of a TM multimode dielectric resonator device according to claim 1 of the present invention.

FIG. 2 is a diagram showing the coupling between the dielectric columns in FIG.

FIG. 3 is a diagram showing a configuration example of a TM multimode dielectric resonator device according to claim 2 of the present invention.

FIG. 4 is a diagram showing the coupling between the dielectric columns in FIG.

FIG. 5 is a diagram showing a configuration example of a main part of a TM multimode dielectric resonator device according to claim 3 of the present invention.

FIG. 6 is a diagram showing a configuration example of a main part of a TM multimode dielectric resonator device according to claim 4 of the present invention.

FIG. 7 is an exploded perspective view showing the structure of one unit of the TM multimode dielectric resonator device according to the embodiment of the present invention.

FIG. 8 is a T formed by arranging three units shown in FIG.
It is a figure which shows the structure of an M multimode dielectric resonator device.

9 is an exploded perspective view showing a configuration of two units including composite dielectric columns 10a and 10b in the TM multimode dielectric resonator device shown in FIG.

10 is an exploded perspective view showing a configuration of two units including composite dielectric columns 10b and 10c in the TM multimode dielectric resonator device shown in FIG.

FIG. 11 is a diagram showing a configuration of a TM multimode dielectric resonator device according to a second embodiment.

12 is a diagram showing a configuration of a magnetic field coupling window formed on surfaces of cavities 15a and 15b shown in FIG. 11 which face each other.

13 is a diagram showing a configuration of a magnetic field coupling window formed on surfaces of cavities 15b and 15c shown in FIG. 11 which face each other.

FIG. 14 is a diagram showing a configuration of a TM multimode dielectric resonator device according to a third embodiment.

FIG. 15 is a diagram showing a configuration of a TM multimode dielectric resonator device according to a fourth embodiment.

FIG. 16 is a diagram showing a configuration of a TM multimode dielectric resonator device according to a fifth embodiment.

FIG. 17 is a diagram showing a configuration of a TM multimode dielectric resonator device according to a sixth embodiment.

FIG. 18 is a diagram showing a configuration of a TM multimode dielectric resonator device according to a seventh embodiment.

19 is a diagram showing a configuration of a magnetic field coupling window formed on the surfaces of the cavities 15a and 15b shown in FIG. 18 which face each other.

20 is a diagram showing a configuration of a magnetic field coupling window formed on opposite surfaces of cavities 15b and 15c shown in FIG.

FIG. 21 is a perspective view showing a configuration of a conventional TM multimode dielectric resonator device.

[Explanation of symbols]

10a, 10b, 10c-Composite dielectric column 11a, 11b, 11c, 12a, 12b, 12c-Dielectric column 13a, 13b, 14a, 14b-Frequency adjusting holes 15a, 15b, 15c-Cavity 16-Upper plate 21, 22, 24-bushing 25-lower plate 30a, 30b-magnetic field coupling window 31b, 31c-conductor non-forming part 32-sealant 33a, 33c-coaxial connector 34a, 34c-coupling loop

Claims (4)

[Claims] 1. A TM multi-mode dielectric resonator device comprising a composite dielectric pillar having a shape in which two dielectric pillars are crossed in a space surrounded by an outer conductor. A plurality of composite dielectric columns are arranged in such a manner that the planes of the two are substantially the same plane, and between two adjacent composite dielectric columns, two of the two composite dielectric columns whose axial directions are parallel to each other are arranged. A magnetic field coupling window formed by arranging slit-shaped conductor non-formation portions along the direction of the magnetic field generated by the dielectric columns is provided to selectively magnetically couple the two dielectric columns. TM multimode dielectric resonator device. 2. A TM multi-mode dielectric resonator device comprising a composite dielectric pillar having a shape in which two dielectric pillars are crossed in a space surrounded by an outer conductor. A plurality of composite dielectric columns are arranged in such a relationship that the planes formed by are substantially the same plane, and the axial direction of the two composite dielectric columns is substantially the same between two adjacent composite dielectric columns. A magnetic field coupling window formed by arranging slit-shaped conductor non-formation portions along the direction of the magnetic field generated by the two dielectric columns is provided to selectively magnetically couple the two dielectric columns. Characteristic TM multi-mode dielectric resonator device. 3. A TM multimode dielectric resonator device comprising a composite dielectric pillar having a shape in which two dielectric pillars are intersected with each other in a space surrounded by an outer conductor. Among the dielectric columns, the axial directions of the other two dielectric columns that intersect the dielectric columns whose axial directions are substantially parallel to each other are not parallel, and the surfaces formed by the composite dielectric columns are substantially continuous. A plurality of composite dielectric columns are arranged, and a magnetic field coupling window formed by arranging slit-shaped conductor non-formation portions along the direction of the magnetic field generated by the two dielectric columns is provided, and the two dielectrics are provided. A TM multimode dielectric resonator device characterized in that columns are selectively magnetically coupled. 4. A TM multi-mode dielectric resonator device comprising a composite dielectric pillar having a shape in which two dielectric pillars are crossed in a space surrounded by an outer conductor. Of the dielectric pillars, the axes of the other two dielectric pillars, which respectively intersect the dielectric pillars whose axial directions are substantially parallel to each other, intersect the axes of the substantially parallel dielectric pillars in different planes, A magnetic field coupling window formed by arranging slit-shaped conductor non-forming portions along the direction of the magnetic field generated by the two dielectric columns is provided to selectively magnetically couple the two dielectric columns. TM multimode dielectric resonator device characterized by: