JPH07147502A - Dielectric filter - Google Patents

Abstract

PURPOSE:To obtain the dielectric filters in which the degree of design freedom is high and each filter is frequency-adjusted by mutually sticking together plural dielectric fitters. CONSTITUTION:An inner conductor 4 is provided to a resonator hole 2 of a dielectric material to which the rectangular resonator hole 2 is formed and an outer conductor 5 is provided to an outside face 6, and a frame-shaped skin 3 separating the inner conductor 4 and the outer conductor 5 is provided in the vicinity of an aperture of one side of the resonator hole 2. A coupling window electrode 6 is provided in the skin from which the outer conductor is removed on at least one outre side face of the dielectric material, and a coupling capacitor is obtained between the inner conductor 4 provided to the rectangular resonator hole 2 and the coupling window electrode 6. Plural dielectric resonators 1 are arranged side by side so as to overlap the coupling window electrodes 6 and they are bonded by a conductor material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dielectric filter which is a composite of a plurality of individual dielectric resonators.

[0002]

2. Description of the Related Art As a conventional dielectric filter, there is one in which a plurality of dielectric resonators are integrally molded in one dielectric block.

[0003]

In this conventional dielectric filter, a plurality of dielectric resonators are compactly housed in one dielectric block, which has some merits. On the other hand, there are disadvantages. That is, since a plurality of dielectric resonators are integrally molded, the degree of freedom in design is low, and the frequency adjustment of each dielectric resonator is difficult due to the influence of the adjacent dielectric resonators. It was

Therefore, it is an object of the present invention to provide a dielectric filter having a large degree of freedom in design and individual frequency adjustment by bonding a plurality of individual dielectric resonators. .

[0005]

The invention described in the claims of the present application is as follows. 1. A rectangular resonator hole is formed in the dielectric, an inner conductor is provided in the resonator hole, an outer conductor is provided on the outer surface of the dielectric, and an inner conductor is provided near the opening on one side of the resonator hole. And a frame-like ground for partitioning the outer conductor, a coupling window electrode is provided in the ground excluding the outer conductor on at least one outer surface of the dielectric, and a rectangular resonator hole is provided. A dielectric filter comprising a plurality of dielectric resonators arranged so as to obtain a coupling capacitance between an inner conductor and a coupling window electrode, arranged side by side so that the coupling window electrodes are overlapped with each other, and joined by a conductive member.

2. An elliptical resonator hole is formed in the dielectric, an inner conductor is provided in this resonator hole, an outer conductor is provided on the outer surface of the dielectric, and an inner conductor is provided near the opening on one side of the resonator hole. An elliptical background that separates the conductor and the outer conductor is provided, and at least one outer surface of the dielectric resonator is provided with a coupling window electrode in the background excluding the outer conductor, and an elliptical resonator hole is provided. A dielectric filter comprising a plurality of dielectric resonators arranged so as to obtain a coupling capacitance between an inner conductor and a coupling window electrode provided so that the coupling window electrodes are superposed on each other and joined by a conductive member.

3. Dielectric resonators in which the coupling capacitance is formed between the inner conductor provided in the resonator hole and the coupling window electrode provided in the ground of the dielectric are arranged so that the coupling window electrodes are stacked together. In a dielectric filter formed by laminating a plurality of dielectric resonators, at least a pair of adjacent dielectric resonators are eccentric to each other in a direction in which the resonator holes are close to each other so that capacitive coupling is strengthened.

4. Dielectric resonators in which the coupling capacitance is formed between the inner conductor provided in the resonator hole and the coupling window electrode provided in the ground of the dielectric are arranged so that the coupling window electrodes are stacked together. In a dielectric filter formed by laminating a plurality of dielectric filters, at least a pair of adjacent dielectric resonators are decentered in a direction away from their centers to weaken capacitive coupling.

5. Dielectric resonators in which the coupling capacitance is formed between the inner conductor provided in the resonator hole and the coupling window electrode provided in the ground of the dielectric are arranged so that the coupling window electrodes are overlapped. In a dielectric filter formed by laminating a plurality of dielectric resonators, at least a pair of adjacent dielectric resonators are configured so that the resonator holes are eccentric to each other in a direction in which the resonator holes are close to each other and the capacitive coupling is strengthened. The dielectric filter configured such that the resonator holes of the pair of adjacent dielectric resonators are eccentric in the direction away from their centers to weaken the capacitive coupling.

6. Dielectric resonators in which the coupling capacitance is formed between the inner conductor provided in the resonator hole and the coupling window electrode provided in the ground of the dielectric are arranged so that the coupling window electrodes are stacked together. , In a laminated dielectric filter, the resonator holes of at least a pair of adjacent dielectric resonators are decentered in the same direction from the center of the resonator holes in the direction intersecting with the direction of the adjacent resonators to strengthen the capacitive coupling. Dielectric filter configured as.

7. Dielectric resonators in which the coupling capacitance is formed between the inner conductor provided in the resonator hole and the coupling window electrode provided in the ground of the dielectric are arranged so that the coupling window electrodes are overlapped. , In a dielectric filter composed of a plurality of laminated dielectric resonators, at least a pair of resonator holes of adjacent dielectric resonators are decentered in different directions from the center of the resonator holes in the direction intersecting with the direction of the adjacent resonators, and the capacitive coupling is weakened. Dielectric filter configured as.

8. Dielectric resonators in which the coupling capacitance is formed between the inner conductor provided in the resonator hole and the coupling window electrode provided in the ground of the dielectric are arranged so that the coupling window electrodes are stacked together. , In a laminated dielectric filter, the resonator holes of at least a pair of adjacent dielectric resonators are decentered in the same direction from the center of the resonator holes in the direction intersecting with the direction of the adjacent resonators to strengthen the capacitive coupling. The dielectric holes are configured so that at least the resonator holes of the other pair of adjacent dielectric resonators are decentered in different directions from the center of the resonator holes in the direction intersecting with the direction of the adjacent resonators to weaken the capacitive coupling. Body filter.

9. Dielectric resonators in which the coupling capacitance is formed between the inner conductor provided in the resonator hole and the coupling window electrode provided in the ground of the dielectric are arranged so that the coupling window electrodes are stacked together. A dielectric filter formed by laminating a plurality of the dielectric filters, wherein at least a pair of adjacent dielectric resonators have different widths in the adjoining direction to obtain strength and weakness of capacitive coupling.

10. Dielectric resonators in which the coupling capacitance is formed between the inner conductor provided in the resonator hole and the coupling window electrode provided in the ground of the dielectric are arranged so that the coupling window electrodes are stacked together. In a dielectric filter formed by laminating a plurality of dielectric filters, at least a pair of adjacent dielectric resonators have different diameters so that capacitive coupling can be obtained.

11. A resonator hole is formed in the dielectric body, an inner conductor is provided in the resonator hole, an outer conductor is provided on the outer six surfaces of the dielectric body, and the inner conductor and the outer hole are provided in the vicinity of one side opening of the resonator hole. A ring-shaped ground that separates the conductor is provided, and a coupling window electrode is provided in the ground excluding the outer conductor on at least one outer surface of the dielectric, and an electrode is provided between the resonator hole and the coupling window electrode. A through or non-through hole is formed,
And a plurality of dielectric resonators whose through-holes or non-through holes increase the capacitance formed between the inner conductor and the outer conductor, are arranged side by side so that the coupling window electrodes are stacked, and are joined by a conductive member. Dielectric filter made by.

12. A resonator hole is formed in the dielectric body, an inner conductor is provided in the resonator hole, an outer conductor is provided on the outer six surfaces of the dielectric body, and the inner conductor and the outer hole are provided in the vicinity of one side opening of the resonator hole. A ring-shaped ground for partitioning the conductor is provided, and at least one outer surface of the dielectric is provided with a coupling window electrode having a recess in the ground excluding the outer conductor, and the coupling window electrode and the inner conductor are separated from each other. A dielectric filter formed by arranging a plurality of dielectric resonators that form a capacitance between them, and arranging them so that coupling window electrodes overlap each other and joining them with a conductive member.

13. A resonator hole is formed in the dielectric body, an inner conductor is provided in the resonator hole, an outer conductor is provided on the outer six surfaces of the dielectric body, and the inner conductor and the outer hole are provided in the vicinity of one side opening of the resonator hole. A ring-shaped ground for partitioning the conductor is provided, a coupling window electrode having a groove in the ground excluding the outer conductor is provided on at least one outer surface of the dielectric, and the coupling window electrode and the inner conductor are A dielectric filter formed by arranging a plurality of dielectric resonators that form a capacitance between them, and arranging the coupling window electrodes so as to overlap each other and joining them with a conductive member.

14. A stepped resonator hole of different size is formed in the dielectric, an inner conductor is provided in the resonator hole, an outer conductor is provided on the outer six surfaces of the dielectric, and the resonator is provided near one side opening of the resonator hole. Is provided with a ring-shaped ground that separates the inner conductor from the outer conductor, and at least one outer surface of the dielectric is provided with a coupling window electrode in the ground excluding the outer conductor. A dielectric filter comprising a plurality of dielectric resonators arranged so as to form a capacitance with a conductor, arranged side by side so that coupling window electrodes are stacked, and joined by a conductive member.

15. A resonator hole is formed in the axial direction of the convex dielectric, an inner conductor is provided in the resonator hole, an outer conductor is provided outside the dielectric, and a resonator hole is provided in the vicinity of one side opening of the resonator hole. A ring-shaped ground that separates the inner conductor and the outer conductor is provided, and on both sides of the convex small-diameter portion of the dielectric, coupling window electrodes are provided in the ground excluding the outer conductor. At least two large-diameter resonators are arranged so that a capacitance is formed between them and the large-diameter portions are arranged so that a concave portion is formed. In this concave portion, the convex portions of another convex-shaped dielectric resonator are formed. A dielectric filter formed by fitting and joining the coupling window electrode and the outer conductor together with a conductive member.

[0020]

According to the present invention, since a plurality of individual dielectric resonators are attached to each other to form a dielectric filter by the capacitance formed between the coupling window electrode and the inner conductor, the frequency of each individual dielectric resonator is reduced. Can be adjusted, and the degree of freedom in design is increased.

[0021]

【Example】

First Embodiment In FIG. 1, reference numeral 1 is a dielectric resonator, and a rectangular resonator hole 2 is provided in the dielectric resonator 1. An inner conductor 4 is provided in the resonator hole 2 except for the frame-shaped background 3 provided near the one side opening. Further, outer conductors 5 are provided on the six outer surfaces of the dielectric resonator 1. The conductor at the opening of the frame-shaped background 3 is one in which the outer conductor 5 is slightly inserted into the resonator hole 2. The inner conductor 4 and the outer conductor 5 are connected to each other on the bottom surface of the dielectric resonator 1. The dielectric resonator shown in FIG. 1 has a λ / 4 dielectric resonator with one end open and the other short circuited. Will be configured. Coupling window electrodes 6 are provided on both sides of the outer end surface of the dielectric resonator 1 in the background excluding the outer conductor 5. A capacitance C1 is formed between the coupling window electrode 6 and the inner conductor 4, as shown in FIG. 1B.

Since the inner conductor 4 forming the capacitance C1 is formed on the side surface of the rectangular resonator hole 2, it becomes parallel to the coupling window electrode 6 and a large capacitance can be obtained. In such a structure of the inner conductor 4 and the coupling window electrode 6, the capacitance may be changed by changing the distance between the inner conductor 4 and the coupling window electrode 6.

The dielectric resonator 1 according to this embodiment has a structure as shown in FIG. 1. However, as shown in FIG. 1C, a plurality of dielectric resonators 1 and coupling window electrodes 6 are provided. Are arranged so as to be overlapped with each other and joined by a conductive member to form a dielectric filter as shown in FIG. 1D. The outer electrode of the outer dielectric resonator 1 is bent from the end face to the bottom face to form the input / output electrode 6a.

Second Embodiment FIGS. 2A and 2B show a dielectric resonator 1 according to a second embodiment, in which an elliptical resonance is provided for the rectangular resonator hole 2 of the first embodiment. It is a vessel hole 2, the others are first
Since it is the same as the embodiment, the same reference numerals as those in the first embodiment are attached,
The description is omitted.

Since the resonator hole 2 has an elliptical shape, the distance between the outer electrode 6 and the inner conductor 4 becomes shorter than that in the case of the circular inner conductor, so that a large capacitance can be obtained.

Also in this embodiment, as in the dielectric resonator 1 shown in FIG. 2A, as in FIGS. 1C and 1D of the first embodiment, a plurality of dielectric resonators 1 and coupling window electrodes 6 are stacked. Thus, the dielectric filter is constructed by joining them with a conductive member. The outer electrode of the outer dielectric resonator 1 is bent from the end face to the bottom face to form the input / output electrode 6a.

Third Embodiment FIG. 3 shows a third embodiment, which is a dielectric resonator 1a, 1a.
When the resonator holes 2 of b, 1c, and 1d are formed eccentrically to the left or right in the lateral direction and these dielectric resonators are bonded together, the resonator holes 2 and 2 of the dielectric resonators 1a and 1b are formed. The resonator holes 2 and 2 of the dielectric resonators 1c and 1d are close to each other, and the capacitive coupling is strengthened through the coupling window electrode.
Further, the resonator holes 2 and 2 of the dielectric resonator 1 and the dielectric resonator 1b in which the resonator holes 2 are not eccentric in the lateral direction, and the resonator holes 2 of the dielectric resonator 1 and the dielectric resonator 1c, 2 are separated from each other and the capacitive coupling is weakened.

By decentering some resonator holes of the plurality of dielectric resonators to be bonded laterally to the left and right, these resonators are bonded to each other so that adjacent resonator holes are closer to each other, and In this case, the capacitive coupling of the resonators is made denser, the adjacent resonator holes are further separated, and the capacitive coupling between them is made coarser.

Fourth Embodiment FIG. 4 shows a fourth embodiment, in which the resonator hole 2 of the dielectric resonator is formed by eccentricity either vertically or vertically, and these are joined together by coupling window electrodes. When they are bonded together, the resonator holes 2 and 2 adjacent to each other are closer and further apart from each other, and a coarse coupling and a tight coupling of the capacitance therebetween are created.

Resonator holes 2 and 2 of the dielectric resonators 1e and 1f
Are eccentric in the vertical direction and are more distant from each other, so that the capacitive coupling between them becomes coarser. The same can be said for the dielectric resonators 1g and 1h. Further, since the resonator holes 2 and 2 of the dielectric resonators 1f and 1g are eccentrically and approaching in the same vertical direction, the capacitive coupling becomes dense.

Fifth Embodiment FIG. 5 shows a fifth embodiment, in which dielectric resonators 1j to 1m having a resonator hole 2 in the central portion and having different lateral widths are manufactured, and these are used as coupling window electrodes. When bonded and bonded together, the distance between adjacent resonator holes 2 is made different to obtain a tight coupling and a coarse coupling of capacitance.

The width of the dielectric resonator is 1k> 1i = 1m
> 1j = 1L. Then, the resonator holes 2 and 2 of the dielectric resonators 1i and 1j are closer to each other and the capacitive coupling is dense. The same can be said for the dielectric resonators 1L and 1m. Further, the resonator holes 2 and 2 of the dielectric resonators 1j and 1k are separated from each other and the capacitive coupling becomes rough. The same can be said for the dielectric resonators 1k and 1L.

Sixth Embodiment FIG. 6 shows a sixth embodiment in which the diameters of the resonator holes of a plurality of dielectric resonators to be bonded together are made different to make the capacitance coupling coarse and dense. is there. The size of the resonator hole 2 of the dielectric resonator is 1n = 1r> 1o = 1q> 1p. Then, the resonator holes 2 and 2 of the dielectric resonators 1n and 1o are closer to each other and the capacitive coupling is more dense. The same can be said for the dielectric resonators 1q and 1r. Further, the resonator holes 2 and 2 of the dielectric resonators 1o and 1p are farther apart, and the capacitive coupling becomes coarser. The same can be said for the dielectric resonators 1p and 1q.

Seventh Embodiment FIGS. 7A and 7B show a dielectric resonator 1 according to a seventh embodiment, in which through holes or non-through holes 7 are provided on both sides of the resonator hole 2 and the through holes 7 are formed. An electrode that is not continuous with the outer conductor is formed inside the. Therefore, the capacitance C7 formed between the inner conductor 4 of the resonator hole 2 and the coupling window electrode 6 is
Due to this side hole 7, it becomes large. A plurality of such dielectric resonators 1 are bonded together to form a composite dielectric filter. When the dielectric resonators 1 are bonded together, the coupling window electrodes 6 are the same as in the above-described embodiment. The outer conductors 5 on the outer side are connected to each other. The composite dielectric filter formed in this manner has a large coupling capacitance, so that a broadband filter can be obtained.

Eighth Embodiment FIG. 8 shows a dielectric resonator 1 according to the eighth embodiment.
By forming a recess 6a in the coupling window electrode 6 of the dielectric resonator 1,
The distance between the coupling window electrode 6 and the inner conductor 4 is made closer to increase the capacitance formed therebetween. When a plurality of such dielectric resonators 1 are bonded together to form a composite dielectric filter, the coupling capacitance increases, so that a broadband filter can be obtained.

Ninth Embodiment FIG. 9 shows a dielectric resonator 1 according to a ninth embodiment.
A groove 8 is provided on both outer side surfaces of the dielectric resonator 1, and a coupling window electrode 6 is formed in the dielectric background of the groove 8. Therefore, similar to the eighth embodiment, the distance between the coupling window electrode 6 and the inner conductor 4 becomes closer, and the capacitance formed between them becomes large. When a plurality of such dielectric resonators 1 are bonded together to form a composite dielectric filter, the coupling capacitance increases, so that a broadband filter can be obtained.

Tenth Embodiment FIG. 10 shows a dielectric resonator 1 according to a tenth embodiment, in which a resonator hole 2 is formed in a step size, and an inner conductor 4 opposed to a coupling window electrode 6 is formed. Is brought closer to the coupling window electrode 6 to obtain a large capacitance. When a plurality of such dielectric resonators 1 are overlapped with each other and the coupling window electrodes 6 are laminated together to form a composite dielectric filter, the coupling capacitance becomes large, so that a broadband filter can be obtained.

Eleventh Embodiment FIG. 11A shows a convex dielectric resonator 1 according to the eleventh embodiment. This dielectric resonator 1 has a cylindrical resonator hole in the axial direction of the convex dielectric. 2 is formed, an outer conductor 5 is provided on the outer side of the dielectric body, and a ring-shaped ground 3 for partitioning the inner conductor 4 and the outer conductor 5 is provided in the vicinity of one side opening of the resonator hole 2, On both sides of the small-diameter portion, a coupling window electrode 6 is provided in the background without the outer conductor 5, and a capacitance is formed between the coupling window electrode 6 and the inner conductor 4. At least two convex dielectric resonators 1 are arranged side by side so as to form a concave portion, and the convex portion of another convex dielectric resonator 1 is fitted into this concave portion to form the coupling window electrode 6 The outer conductor 5 and the outer conductor 5 are joined by a conductive member to form a dielectric filter. In this embodiment, the lateral length is smaller than that in the case where a plurality of dielectric resonators are arranged in a line.

In addition, in the above-mentioned embodiment, as the background of the dielectric material provided in the vicinity of the opening on one side of the resonator hole, only the shape diagram in which the dielectric material is slightly inserted into the opening of the resonator hole is shown. Since the frequency of the background of this dielectric is adjusted by its position and width, it may be provided at the open end of one side of the resonator hole. Further, the dielectric background provided in the resonator hole may be provided in the vicinity of the openings on both sides of the resonator hole.

[0040]

According to the present invention, since individual dielectric resonators are bonded together to form a dielectric filter, the frequency of each individual dielectric resonator can be adjusted, and the degree of freedom in design is increased. That is, when the individual dielectric resonators are combined to form a dielectric filter, the outer surface of the individual dielectric resonators is covered with an outer conductor, so that the outer conductors of the individual dielectric resonators perform a shielding action. Compared to the conventional dielectric block with multiple dielectric resonators, the leakage of electromagnetic fields outside the coupling window electrode is reduced and it is not affected by adjacent dielectric resonators. This is because the frequency can be adjusted. Further, the frequency of the individual dielectric resonator can be tuned by changing the position and width of the background of the dielectric provided near one side opening of the resonator hole of the individual dielectric resonator.

[Brief description of drawings]

1 shows a first embodiment, where A is a perspective view of a dielectric resonator, B is a cross-sectional view taken along line X1-X1 of A, C is a perspective view of a plurality of dielectric resonators, and D is bonded. Perspective view of a dielectric filter

2A and 2B show a dielectric resonator according to a second embodiment, in which A is a perspective view and B is a sectional view taken along line X2-X2 of A. FIG.

FIG. 3 is a schematic configuration diagram of a third embodiment.

FIG. 4 is a schematic configuration diagram of a fourth embodiment.

FIG. 5 is a schematic configuration diagram of a fifth embodiment.

FIG. 6 is a schematic configuration diagram of a sixth embodiment.

7A and 7B show a dielectric resonator according to a seventh embodiment, where A is a perspective view and B is a sectional view taken along line X7-X7 of A. FIG.

FIG. 8 is a perspective view of a dielectric resonator according to an eighth embodiment.

FIG. 9 is a perspective view of a dielectric resonator according to a ninth embodiment.

FIG. 10 is a perspective view of a dielectric resonator according to a tenth embodiment.

FIG. 11 shows an eleventh embodiment, in which A is a perspective view of a dielectric resonator and B is a cross-sectional view of a laminated dielectric filter.

[Explanation of symbols]

 1 Dielectric Resonator 2 Resonator Hole 3 Frame Background 4 Inner Conductor 5 Outer Conductor 6 Coupling Window Electrode 7 Side Hole 8 Groove

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jinsei Ishihara 2 26-10 Tenjin Tenjin, Nagaokakyo City, Kyoto Murata Manufacturing Co., Ltd.

Claims (15)

[Claims] 1. A rectangular resonator hole is formed in a dielectric,
An inner conductor is provided in the resonator hole, an outer conductor is provided on the outer surface of the dielectric body, and a ground surface of the dielectric that separates the inner conductor and the outer conductor is provided in the vicinity of the opening on one side of the resonator hole. , A coupling window electrode is provided on the outer surface of at least one outer surface of the dielectric, excluding the outer conductor, and a coupling capacitance is provided between the inner conductor provided in the rectangular resonator hole and the coupling window electrode. A dielectric filter formed by arranging a plurality of dielectric resonators each having the above-mentioned structure, arranging them so that coupling window electrodes are overlapped with each other, and joining them with a conductive member. 2. An elliptical resonator hole is formed in a dielectric body, an inner conductor is provided in the resonator hole, and an outer conductor is provided on an outer surface of the dielectric body. In the vicinity of the opening, the ground surface of the dielectric that divides the inner conductor and the outer conductor is provided,
At least one outer surface of the dielectric resonator is provided with a coupling window electrode in the background excluding the outer conductor, and coupling is performed between the inner conductor provided in the elliptical resonator hole and the coupling window electrode. A dielectric filter in which a plurality of dielectric resonators for obtaining a capacitance are arranged side by side so that coupling window electrodes are overlapped with each other and joined by a conductive member. 3. A dielectric resonator having a coupling capacitance formed between an inner conductor provided in a resonator hole and a coupling window electrode provided in the ground of a dielectric, the coupling resonator comprising: In a dielectric filter formed by arranging so as to overlap each other and laminating a plurality of them, at least a pair of adjacent dielectric resonators should be eccentric to each other in the direction approaching from the center thereof to strengthen the capacitive coupling. Dielectric filter. 4. A dielectric resonator comprising a coupling capacitance formed between an inner conductor provided in a resonator hole and a coupling window electrode provided in the ground of a dielectric, the coupling resonator comprising: In a dielectric filter made by arranging so as to overlap each other and laminating a plurality of them, at least a pair of adjacent dielectric resonators are eccentric in the direction away from their centers to weaken the capacitive coupling. Dielectric filter. 5. A dielectric resonator in which a coupling capacitance is formed between an inner conductor provided in a resonator hole and a coupling window electrode provided in the ground of a dielectric is used as a coupling window electrode. In a dielectric filter formed by arranging so as to overlap each other and pasting them together, at least the resonator holes of a pair of adjacent dielectric resonators are eccentric to each other in the direction close to their centers so that capacitive coupling is weakened. A dielectric filter configured such that at least the resonator holes of at least another pair of adjacent dielectric resonators are eccentric in a direction away from their centers to enhance capacitive coupling. 6. A dielectric resonator in which a coupling capacitance is formed between an inner conductor provided in a resonator hole and a coupling window electrode provided in the background of a dielectric, and the coupling resonator is provided with a coupling window electrode. In a dielectric filter formed by arranging so as to overlap each other and laminating a plurality of them, the resonator holes of at least a pair of adjacent dielectric resonators are decentered in the same direction from the center of the resonator holes in the direction intersecting with the direction of the adjacent resonators. A dielectric filter configured to have strong capacitive coupling. 7. A dielectric resonator in which a coupling capacitance is formed between an inner conductor provided in a resonator hole and a coupling window electrode provided in the background of a dielectric, and the coupling resonator is provided with a coupling window electrode. In a dielectric filter formed by arranging so as to overlap each other and laminating a plurality of them, the resonator holes of at least a pair of adjacent dielectric resonators are decentered in different directions from their centers in the direction intersecting with the direction of the adjacent resonators. A dielectric filter configured to weaken capacitive coupling. 8. A dielectric resonator, wherein a coupling capacitance is formed between an inner conductor provided in a resonator hole and a coupling window electrode provided in the ground of a dielectric, and the coupling resonator is provided with a coupling window electrode. In a dielectric filter formed by arranging so as to overlap each other and laminating a plurality of them, the resonator holes of at least a pair of adjacent dielectric resonators are decentered in the same direction from the center of the resonator holes in the direction intersecting with the direction of the adjacent resonators. The capacitive coupling is configured to be strong, and at least the resonator holes of the other pair of adjacent dielectric resonators are eccentric in directions different from the center of the resonator holes in the direction intersecting with the direction of the adjacent resonator, thereby weakening the capacitive coupling. Dielectric filter configured as. 9. A dielectric resonator in which a coupling capacitance is formed between an inner conductor provided in a resonator hole and a coupling window electrode provided in the ground of a dielectric, and the coupling resonator is provided with a coupling window electrode. In a dielectric filter formed by arranging so as to overlap each other and adhering a plurality of the dielectric filters, at least a pair of adjacent dielectric resonators are configured so that the widths in the adjoining direction are different from each other, and the strength of capacitive coupling is obtained. filter. 10. A dielectric resonator in which a coupling capacitance is formed between an inner conductor provided in a resonator hole and a coupling window electrode provided in a background of a dielectric, and the coupling resonator is provided with a coupling window electrode. A dielectric filter in which a plurality of adjacent dielectric resonators are arranged so as to overlap each other and at least a pair of adjacent dielectric resonators have different diameters so that capacitive coupling strength is obtained. . 11. A resonator hole is formed in a dielectric body, an inner conductor is provided in the resonator hole, and an outer conductor is provided on six outer surfaces of the dielectric body, and the resonator hole is provided near one side opening of the resonator hole. Is provided with a ring-shaped ground that separates the inner and outer conductors, and at least one outer surface of the dielectric is provided with a coupling window electrode in the ground excluding the outer conductor. A through hole or a non-through hole having an electrode is formed between the dielectric resonator and the through hole or the non-through hole to increase the capacitance formed between the inner conductor and the outer conductor. Arrange a plurality of coupling window electrodes so that they overlap each other,
A dielectric filter formed by joining with a conductive member. 12. A resonator hole is formed in a dielectric body, an inner conductor is provided in the resonator hole, and an outer conductor is provided on six outer surfaces of the dielectric body, and the resonator hole is provided near one side opening of the resonator hole. Is provided with a ring-shaped ground surface for partitioning the inner conductor and the outer conductor, and at least one outer surface of the dielectric is provided with a coupling window electrode having a recess in the ground surface excluding the outer conductor. A dielectric filter formed by arranging a plurality of dielectric resonators so that a capacitance is formed between the inner conductor and the inner conductor, and arranging them so that coupling window electrodes are overlapped with each other, and joining them with a conductive member. 13. A resonator hole is formed in a dielectric body, an inner conductor is provided in the resonator hole, and an outer conductor is provided on six outer surfaces of the dielectric body, and the resonator hole is provided near one side opening of the resonator hole. Is provided with a ring-shaped ground that separates the inner conductor from the outer conductor, and at least one outer surface of the dielectric is provided with a coupling window electrode having a groove in the ground excluding the outer conductor, and this coupling window. A plurality of dielectric resonators arranged to form a capacitance between the electrode and the inner conductor are arranged so that the coupling window electrodes are overlapped with each other,
A dielectric filter formed by joining with a conductive member. 14. A stepped resonator hole having a different size is formed in a dielectric body, an inner conductor is provided in the resonator hole, and an outer conductor is provided on the outer six surfaces of the dielectric body. A ring-shaped ground that separates the inner conductor and the outer conductor is provided in the vicinity of the opening on one side, and at least one outer surface of the dielectric is provided with a coupling window electrode in the ground excluding the outer conductor, and A dielectric filter comprising a plurality of dielectric resonators arranged to form a capacitance between a coupling window electrode and an inner conductor, arranged side by side so that the coupling window electrodes are superposed on each other, and joined by a conductive member. 15. A resonator hole is formed in the axial direction of a convex dielectric body, an inner conductor is provided in the resonator hole, and an outer conductor is provided outside the dielectric body, and one side of the resonator hole is provided. A ring-shaped ground that separates the inner and outer conductors is provided near the opening, and coupling window electrodes are provided in the ground excluding the outer conductor on both sides of the convex small-diameter portion of the dielectric. At least two large-diameter convex resonators are arranged so that a capacitance is formed between the window electrode and the inner conductor, and a large-diameter portion is formed so that a concave portion is formed. A dielectric filter in which the convex window of the container is fitted and the coupling window electrode and the outer conductor are joined by a conductive member.