JPH0375086B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a dielectric resonator suitable for use as a component of an antenna sharing device in a base station of a mobile phone, a mobile communication station, or the like.

Prior Art Fig. 18 is a sectional view (FF sectional view in Fig. 19) showing the main parts of a conventional HE ₁₁ mode dielectric resonator, and Fig. 19 is an E-E sectional view in Fig. 18. In the figure,
In both figures, 11 is an outer conductor made of a TE ₁₁ cut-off waveguide, 12 is a cylindrical resonant element made of a dielectric with a high permittivity, and 13 is a support for the resonant element 12, which is smaller than the resonant element 12. It is made of a dielectric material with a low permittivity. 14 is a V mode input/output coupling probe;
Reference numeral 15 denotes an H-mode input/output coupling probe, which is provided so that its axial directions have an angular difference of 90 degrees from each other. 16 is a coupling adjustment screw whose axial direction is relative to the axial direction of the V mode input/output coupling probe.
They are provided so as to have an angular difference of 45° or 45°±n90° (n is any positive integer).

When the insertion length of the coupling adjustment screw 16 into the resonator is appropriately adjusted and a V mode wave is inputted through the V mode input/output coupling probe 14, it is output in H mode from the H mode input/output coupling probe 15, and the H mode wave is outputted from the H mode input/output coupling probe 15. When an H mode wave is input through the mode input/output coupling probe 15, it is output in V mode from the V mode input/output coupling probe 14.

FIGS. 20 and 21 are diagrams showing an example of the electromagnetic field distribution in the conventional resonator, in which a solid line with an arrow represents an electric field, and a broken line with an arrow represents a magnetic field.

Problems to be Solved by the Invention In the conventional HE ₁₁ mode dielectric resonator described above, V mode or H It is possible to make two waves of the mode resonate, but these two waves are limited to the same frequency, and it is impossible to make two waves of different frequencies resonate. However, if this resonator is used to configure, for example, an antenna sharing device, one resonator is required for each communication channel, which makes the configuration of the antenna sharing device complicated and large. I can't escape it.

Means for Solving the Problems The present invention provides a common coupling element for V-mode and H-mode, which is installed at approximately 1/2 of the axial length of a common outer conductor made of a TE ₁₁ cut-off waveguide. A first HE ₁₁ 〓 mode dielectric resonance element is coaxially provided between the common coupling element and one end wall of the common external conductor, and a common external conductor is provided between the common coupling element and one end wall of the common external conductor. A first V having an angular difference of 45° or 45° ± 180° with the common coupling element on the conductor.
The first H-mode coupling element has an angular difference of -45° or -45°±180° between the mode coupling element and the common coupling element, and an angular difference of 0° or 0°±n90° between the common coupling element and the common coupling element. a first mode modification element having an angular difference (n is any positive integer), a first V-mode resonant frequency fine adjustment element in the same direction as the first V-mode coupling element, and a first H-mode coupling element. A first H-mode resonant frequency fine adjustment element is provided in the same direction, and a second dielectric resonance element having the same configuration as each of the above elements is provided between the common coupling element and the other end wall of the common external conductor. a second V-mode coupling element, a second H-mode coupling element, a second mode modification element, a second V-mode resonant frequency fine-tuning element, and a second H-mode resonant frequency fine-tuning element. By realizing a dielectric resonator consisting of a dielectric resonator, the present invention attempts to eliminate the drawbacks of the conventional method.

Function In the dielectric resonator of the present invention, the first and second
a V-mode resonant frequency fine-tuning element, first and second H-mode resonant frequency fine-tuning elements, and a first
By appropriately adjusting the insertion length of the second mode modification element into the resonator, four waves of V mode and H mode having different frequencies can be caused to resonate simultaneously.

Embodiment FIG. 1 is a sectional view (D-D sectional view in FIG. 2) showing one embodiment of the present invention, and FIG.
A end view, FIG. 3 is a BB sectional view in FIG. 1, and FIG. 4 is a C-C sectional view in _FIG . The outer conductor has an axial length approximately twice the resonance length. 2 ₁ and 2 ₂ are first and second HE ₁₁ mode dielectric _resonance elements made of a dielectric material with a high permittivity; 3 is a common support for the resonance elements 2 ₁ and 2 ₂ ; The resonant element _{2 1} is made of a rod-shaped or cylindrical dielectric material having a lower dielectric constant than the resonant element 2 1 , and the center distance between the resonant elements 2 ₁ and 2 ₂ almost matches the resonance length _.
and 2 ₂ are supported.

4 is a common coupling element for V mode and H mode,
It is attached to the cylindrical side wall of the common external conductor 1 at a position that is 1/2 or approximately 1/2 of the axial length.

5 ₁ and 5 ₂ are first and second V-mode coupling elements, 6 ₁ and 6 ₂ are first and second H-mode coupling elements, and when each coupling element is formed by a probe as shown in the figure, , V-mode coupled probe 5 ₁ and 5 ₂
has an angular difference of 45° or 45°±180° with respect to the axial direction of the common coupling probe 4, and each axial direction of the H mode coupling probes 6 ₁ and 6 ₂ is angularly different from the axis of the common coupling probe 4. It is formed to have an angular difference of -45° or -45°±180° with respect to the direction.

Instead of forming each coupling element with a probe, all coupling elements may be formed with a loop, or any part of each coupling element may be formed with a probe, and the other coupling elements may be formed with a loop. Good too.

Further, the common coupling element 4 is formed by a coupling rod made of a rod-shaped conductor or a stripline, and the V mode coupling elements 5 ₁ and 5 ₂ and the H mode coupling elements 6 ₁ and 6 ₂ are all formed by probes or by loops. Alternatively, some of the V-mode coupling elements 5 ₁ and 5 ₂ and the H-mode coupling elements 6 ₁ and 6 ₂ may be formed as probes, and other coupling elements may be formed as loops.

The figure shows an example in which the V-mode coupling elements 5 ₁ and 5 ₂ and the H-mode coupling elements 6 ₁ and 6 ₂ are all provided on the cylindrical side wall of the common external conductor 1. It may be provided on the end wall, or some of the coupling elements may be provided on the cylindrical side wall and other coupling elements may be provided on the end wall.

When each coupling element is formed as a loop, the angle difference between each loop surface is made to be the same as the angle difference in the axial direction of each probe when each coupling element is formed with a probe, and a part of the coupling element is looped. When the other coupling element is formed using a probe, the coupling element is attached so that the angular difference between the loop surface and the probe in the axial direction has the same value as described above.

When the common coupling element 4 is formed by a coupling rod,
If the angular difference between the axial direction and the axial direction or loop plane of the coupling elements 5 ₁ , 5 ₂ , 6 ₁ and 6 ₂ is made the same as above, and the common coupling element 4 is formed by a stripline, its longitudinal direction is Direction and coupling elements 5 ₁ , 5 ₂ ,
The angle difference between the axial direction or the loop surface of 6 ₁ and 6 ₂ is made the same as above.

7 ₁ and 7 ₂ are first and second mode modifying elements, which are formed, for example, by adjustment screws that can make the insertion length into the common external conductor 1 variable, and the common coupling element 4 is formed by a probe or a coupling rod. In this case, the axial directions of the mode modifying elements 7 ₁ and 7 ₂ are provided so as to have an angular difference of 0° or 0° ± n90° with respect to the axial direction,
When the common coupling element 4 is formed as a loop, it is formed so that the axial directions of the mode modification elements 7 ₁ and 7 ₂ have the same angular difference as described above with respect to the loop plane, and the common coupling element 4 is formed in a straight line. When formed as a lipline, the axial directions of the mode modifying elements 7 ₁ and 7 ₂ are formed to have the same angular difference as described above with respect to the longitudinal direction thereof.

Any number of mode modifying elements 7 ₁ and 7 ₂ can be provided as long as they satisfy the angular difference conditions as described above.

The axial directions and insertion lengths of the mode modification elements 7 ₁ and 7 ₂ depend on the magnitude of each cross-polarized wave component of both the V-mode and H-mode waves and the roundness of the cylindrical side wall of the common external conductor 1. Therefore, it is desirable to adjust it appropriately according to the magnitude of each cross-polarized wave component of both the V-mode and H-mode waves and the roundness of the cylindrical side wall of the common external conductor 1.

8 ₁ and 8 ₂ are first and second V-mode resonant frequency fine adjustment elements, which are formed, for example, by adjustment screws that can vary the insertion length into the common external conductor 1, and whose respective axial directions are V-mode. It is provided in the same direction as each axial direction or each loop surface of the coupling elements 5 ₁ and 5 ₂ .

9 ₁ and 9 ₂ are first and second H mode resonant frequency fine adjustment elements, which are made of adjustment screws similar to the V mode resonant frequency fine adjustment elements 8 ₁ and 8 ₂ , and their respective axial directions are H mode. The coupling elements 6 ₁ and 6 ₂ are provided in the same direction as the axial direction or the loop plane.

The mode modification element 7 ₁ , the V-mode resonant frequency fine-adjustment element 8 ₁ , and the H-mode resonant frequency fine-adjustment element 9 ₁ are placed on the cylindrical side wall of the common external conductor 1 as shown in the figure. The mode modification element 7 ₂ is attached at a location corresponding to approximately 1/2 of the axial length from the left end wall to the attachment location of the common coupling element 4.
The V-mode resonant frequency fine-tuning element 8 ₂ and the H-mode resonant frequency fine-tuning element 9 ₂ are connected to the common coupling element from the right-hand end wall of the cylindrical side wall of the common external conductor 1 as shown in the figure. The mode modification effect and the resonant frequency adjustment effect can be maximized by mounting the common outer conductor 1 at a location corresponding to approximately 1/2 of the axial length up to the mounting location of 4. It may be provided at different locations.

In the dielectric resonator of the present invention, the axial spacing between the dielectric resonant elements 2 ₁ and 2 ₂ is relatively large, and the coupling attenuation is large, so the mode modification elements 7 ₁ and 7
_2. V-mode resonant frequency fine adjustment elements 8 ₁ and 8 ₂ ,
By appropriately adjusting the insertion lengths of the H-mode resonant frequency fine adjustment elements 9 ₁ and 9 ₂ , the resonator on the left side of the common coupling element 4, that is, the common external conductor 1, the dielectric resonant element 2 ₁ , and the common coupling Element 4, V mode coupling element 5 ₁ , H mode coupling element 6 ₁ , mode modification element 7 ₁ , V mode resonant frequency fine adjustment element 8 ₁ and H
A resonator consisting of a mode resonant frequency fine adjustment element ₉₁ can resonate two waves having different frequencies, and a resonator on the right side of the common coupling element 4,
That is, common external conductor 1, dielectric resonant element 2 ₂ , common coupling element 4, V-mode coupling element 5 ₂ , H-mode coupling element 6 ₂ , mode modification element 7 ₂ , V-mode resonant frequency fine adjustment element 8 ₂ , and The resonator consisting of the H-mode resonant frequency fine adjustment element 9 ₂ has different frequencies and resonates with two waves having different frequencies from the resonant frequency of the dielectric resonant element 2 ₁ side, thereby creating a resonator common to a total of 4 waves. It can be operated as

5 to 7 are diagrams showing electromagnetic field modes in the left (or right) resonator of the common coupling element 4. In each figure, a solid line with an arrow indicates an electric field, and a broken line with an arrow indicates the electric field. indicates the magnetic field.

The electromagnetic field mode when excited via the V-mode coupling element 5 ₁ (or 5 ₂ ) is shown in FIG.
The electromagnetic field mode when excited via the mode coupling element 6 ₁ (or 6 ₂ ) is shown in FIG.

The electromagnetic field mode shown in FIG. 7, that is, the electromagnetic field mode coupled to the common coupling element 4, has an angular difference of 45° or 45° ± 180° between the V mode electromagnetic field mode and the H mode Electromagnetic field mode is -45° or -45°±
It has an angular difference of 180°. Therefore, the electromagnetic field modes of V mode and H mode have an angular difference of 90 degrees from each other.

In the dielectric resonator of the present invention, by adjusting the insertion lengths of the mode modification elements 7 ₁ and 7 ₂ ,
A linearly polarized wave component having an angular difference of 45° with respect to the V mode and H mode is generated, and the cross polarized wave component is canceled in the V mode coupling element section and the H mode coupling element section, resulting in interference between the V mode and H mode. At the same time, as shown in FIG. 7, in the common coupling element section, an electromagnetic field mode is formed that correctly couples to the common coupling element 4, and the resonant energy of the V mode and H mode, which have different frequencies, is released from the common coupling element 4. is taken out.

The above is the coupling elements 5 ₁ and 5 ₂ and 6 ₁ and 6 ₂
The explanation has been made on the case where the common coupling element 4 is on the input side and the common coupling element 4 is on the output side, but the same applies also when the common coupling element 4 is on the input side and coupling elements 5 ₁ and 5 ₂ and 6 ₁ and 6 ₂ are on the output side. Of course, it operates in the same way.

FIG. 8 is a sectional view showing another embodiment of the present invention, in which 3 ₁ and 3 ₂ are respective supports for the resonant elements 2 ₁ and 2 ₂ , which are made of the same material and have the same shape as the support 3 in the previous embodiment. Consists of. 4 ₁ and 4 ₂ are first and second loops forming a common coupling element, respectively; 10 is a partition conductor wall; one end of the first loop is connected to the partition conductor wall 10;
, for example on the left side facing the drawing, and connect one end of the second loop to the partitioning conductor wall 10
and the other ends of the first and second loops are connected to a common coaxial terminal.

Other symbols and configurations are the same as in the previous embodiment.

In this embodiment, the axial length of the common outer conductor 1 is shortened compared to the previous embodiment by providing a partition conductor wall 10 to increase the coupling attenuation between the dielectric resonant elements 2 ₁ and 2 ₂ . A common resonator can be constructed for four waves having different frequencies.

FIG. 9 shows either the V mode or the H mode of the resonator on the side in which the dielectric resonator 2 ₁ (or 2 ₂ ) is installed when the common coupling element of the dielectric resonator of the present invention is formed by a probe. This is an equivalent circuit diagram for a single mode, and this equivalent circuit diagram can be represented by the basic equivalent circuit diagram shown in FIG.

In FIG. 10, r is the resistance of the resonant circuit, and x is the reactance.

FIG. 11 shows the case where the common coupling element of the dielectric resonator of the present invention is formed of a loop, a coupling rod, a stripline, etc. having a length of λg/4 (λg is the tube wavelength) or an odd multiple thereof. Dielectric resonant element 2
₁ (or 2 ₂ ) for a single mode of the resonator, and this equivalent circuit diagram is
It can be represented by the equivalent circuit diagram shown in FIG. 2, and therefore, in this case as well, it can be represented by the basic equivalent circuit diagram shown in FIG.

FIG. 13 shows terminals to which the V-mode and H-mode coupling elements in the dielectric resonator of the present invention are connected (hereinafter abbreviated as coupling terminals) with a terminating resistor R _L =1.
This is an equivalent circuit diagram looking into the resonator from the terminal to which the common coupling element is connected (hereinafter abbreviated as the common coupling terminal), and the input impedance Z〓 _k and input admittance Y〓 _k of this circuit are respectively It is expressed by the following formulas.

Z〓 _k = r _k + J2x _k ……(1) r _k = 2Q _Lk /Q _Uk −Q _Lk ……(2) x _k = Q _Lk [f/f _pk −f _pk /f] ……(3) Y〓 _k = 1/1 + Z _k ... (4) In each of the above equations, k: 1 to 4 Q _Lk : Load Q Q _Uk : No load Q Figure 14 shows each coupling terminal in the dielectric resonator of the present invention. In the equivalent circuit diagram when terminated with an endless resistor R _L = 1, the input admittance Y〓 _C expected from the resonant coupling terminal is Y〓 _C = _K=4 〓 ^K=1 Y〓 _k ……(5) expressed.

FIG. 15 is an equivalent circuit diagram when all coupling terminals except for one coupling terminal in the dielectric resonator of the present invention are terminated with a terminating resistor R _L =1, and T _C is common. The coupling terminal, Z〓 _k is the impedance of the resonant circuit that keeps the coupling terminal open, T _k
is the coupling terminal kept open.

If the composite input admittance of a resonant circuit whose coupling terminal is terminated with a terminating resistor R _L = 1 is Y〓 _Tk , then Y〓 _Tk = _K=4 〓 ^K=1 Y〓 _k −Y〓 _k ……(6) It will be done.

The basic matrix [F〓] between the coupling terminal T _k and the common coupling terminal T _C is expressed by the following formula.

[F〓]=1 0 Y〓 _Tk 1 1 Z〓 _k 0 1 = 1 Y〓 _Tk Z〓 _k 1+Z〓 _k Y〓 _Tk ……(7) From equations (1) to (7), common coupling terminal T Voltage reflection coefficient Γ 〓 _C at _C is equation (8), reflection loss L _C is equation (9),
You can ask for each.

Γ〓 _C = 1−Y _C /1+Y _C ……(8) L _C = 20log｜Γ〓 _C ｜ ……(9) Other coupling terminals except any one coupling terminal T _k and common coupling terminal T _C Terminating with the terminating resistor R _L = 1, the admittance Y〓 _Ck looking from the coupling terminal T _k to the common coupling terminal T _C side is expressed by equations (7) to (10), and the voltage reflection coefficient Γ〓 _Ck is expressed as (11) In the equations, the reflection loss L _Ck is determined by the equation (12).

Y〓 _Ck =1+Y _Tk (1+Z _k )/1+Z _k ……(10) Γ〓 _Ck =1−Y _Ck /1+Y _Ck ……(11) L _Ck =20log｜Γ〓 _Ck ｜(dB) ……(12 ) The transmission characteristics between the coupling terminal T _k and the common coupling terminal T _C can be obtained from equations (7) to (13).

L _Ck = 10log | 2 + Z _k + Y _k + Z _k Y _Tk | ² / 4 ... (13) Figure 16 shows that any two coupling terminals T _j and T _k in the dielectric resonator of the present invention are kept open. ,
This is an equivalent circuit diagram when the other two coupling terminals are terminated with a terminating resistor R _L =1, and the common coupling terminal T _C is terminated with a resistor R _L =1 which is equivalent to an antenna, for example.
Z〓 _j and Z〓 _k are the impedances of the resonant circuit with coupling terminals T _j and T _k , R _L = 1 is the terminating resistance of the common coupling terminal, and Y 〓 _Tjk is the coupling terminal terminated with the terminating resistor R _L = 1. It is the composite admittance of the resonant circuit.

If the admittance of a resonant circuit equipped with coupling terminals T _j and T _k is expressed as Y〓 _j and Y〓 _k , the composite admittance Y〓 _Tjk is: Y〓 _Tjk = _K=4 〓 ^K=1 Y〓 _k −Y〓 _j −Y〓 _k (14) Therefore, the basic matrix [F〓 _jk ] between the coupling terminals T _j and T _k is expressed by the formula (15).

[F〓 _jk ]=1 Z〓 _j 0 1 1 0 1+Y〓 _Tjk 1 1 Z〓 _k 0 1 =1+Z〓 _j (1+Y〓 _Tjk ) Z〓 _j +Z〓 _k
{1+Z〓 _j (1+Y〓 _Tjk )} 1+Y〓 _Tjk 1+Z〓 _j (1+Y〓 _Tjk )...(15) The coupling attenuation L _jk between the coupling terminals T _j and T _k is (15)
It can be obtained from equation (16).

L _jk = 10log | α | ² / 4 ... (16) α = 3 + 2 (Z〓 _j +Z〓 _k ) +Y〓 _Tjk (1 + Z〓 _j +Z〓 _k +Z〓 _j Z〓 _k ) +Z〓 _j Z〓 _k invention Effects The dielectric resonator of the present invention can resonate with four waves of different frequencies, so when configuring an antenna sharing device, for example, when the number of communication paths is the same, the resonator is Since the number can be reduced to 1/4 and the number of branch lines can be reduced, the antenna shared device can be made simple and compact.

Furthermore, when using the dielectric resonator of the present invention, four resonators can be connected in parallel to each branch point of the common line in the antenna sharing device, so one resonator can be connected in parallel to each branch point, unlike the conventional method. Compared to the case where resonators are connected in branches, when the number of communication paths is the same, the length of the common line can be shortened, and the electrical characteristics can be improved accordingly.

FIG. 17 is a curve diagram showing an example of the coupling attenuation between each coupling terminal and the common coupling terminal in the prototype dielectric resonator of the present invention, and the horizontal axis is the transmission frequency F (M
Hz), and the vertical axis is attenuation - ATT (dB).

As is clear from the figure, the dielectric resonator of the present invention has good electrical characteristics.

[Brief explanation of drawings]

1 to 4 and 8 are cross-sectional views showing one embodiment of the present invention, FIGS. 5 to 7 are operation explanatory views, and FIGS. 9 to 16 are sectional views showing an embodiment of the present invention. 17 is a curve diagram showing an example of the characteristics of the resonator of the present invention. FIGS. 18 and 19 are sectional views showing an example of a conventional resonator. 20 and 21 are diagrams showing the electromagnetic field distribution in a conventional resonator. 1: common outer conductor;
2 ₁ and 2 ₂ : resonant element, 3, 3 ₁ and 3 ₂ : support for resonant element, 4, 4 ₁ and 4 ₂ : common coupling element, 5
₁ , 5 ₂ , 6 ₁ and 6 ₂ : coupling element, 7 ₁ and 7 ₂ : mode modification element, 8 ₁ , 8 ₂ , 9 ₁ and 9 ₂ : resonant frequency fine adjustment element, 10: partition conductor wall, 11: external conductor, 12: resonant element, 13: support for resonant element,
14 and 15: input/output coupling probe; 16: coupling adjustment element.

Claims (1)

[Scope of Claims] A common outer conductor consisting of a 1 TE ₁₁ cut-off waveguide, and first and second HE _11s disposed coaxially within the common outer conductor and spaced apart appropriately in the axial direction. 〓
a mode dielectric resonant element, and a V mode and H
a mode common coupling element, and a common coupling element provided on the common outer conductor on the interior side of the first dielectric resonant element with the attachment point of the common coupling element as a border, and between the common coupling element and the common coupling element.
a first V-mode coupling element having an angular difference of 45° or 45°±180°, and the common outer conductor on the interior side of the first dielectric resonant element with the mounting location of the common coupling element as a border; a first H having an angular difference of −45° or −45°±180° with the common coupling element;
between a mode coupling element and the common outer conductor on the interior side of the first dielectric resonant element with the mounting location of the common coupling element as a boundary;
a first mode modifying element having an angular difference of 0° or 0°±n90° (n is any positive integer); and a distance between the first dielectric resonant element and the common coupling element at the mounting location. a first V-mode resonant frequency fine adjustment element provided on the common external conductor on the interior side so as to be in the same direction as the first V-mode coupling element; a first H-mode resonant frequency fine adjustment element provided on the common external conductor on the interior side of the first dielectric resonant element so as to be in the same direction as the first H-mode coupling element; provided on the common external conductor on the interior side of the second dielectric resonant element with the attachment point of the coupling element as a border, and between the common coupling element and the common outer conductor;
a second V-mode coupling element having an angular difference of 45° or 45° ± 180°, and the common outer conductor on the interior side of the second dielectric resonant element with the attachment point of the common coupling element as a border; a second H having an angular difference of −45° or −45°±180° with the common coupling element;
between a mode coupling element and the common external conductor on the interior side of the second dielectric resonant element with the mounting location of the common coupling element as a border;
a second mode modification element having an angular difference of 0° or 0°±n90°, and the common outer conductor on the interior side of the second dielectric resonant element with the attachment point of the common coupling element as the border; a second V-mode resonant frequency fine adjustment element provided in the same direction as the second V-mode coupling element; and a second dielectric resonant element with the attachment point of the common coupling element as the border. A dielectric resonator characterized in that the common external conductor on the interior side is provided with a second H-mode resonant frequency fine adjustment element provided in the same direction as the second H-mode coupling element. . 2. A first loop in which a partition conductor wall dividing the common external conductor into two is provided parallel to the end wall, one end is connected to one surface of the partition conductor wall, and the other end is connected to a common coaxial terminal; Dielectric resonance according to claim 1, wherein a common coupling element is formed by a second loop having one end connected to the other surface of the partition wall and the other end connected to the common coaxial terminal. vessel. 3. The common coupling element, the first and second V-mode coupling elements, and the first and second H-mode coupling elements each consist of a probe, and the first and second V-mode coupling in the axial direction of the common coupling probe. The axial direction of the probe has an angular difference of 45° or 45° ± 180°, and the first and second H
The axial direction of the mode coupling probe is -45° or -45°±
A dielectric resonator according to claim 1 having an angular difference of 180°. 4. The common coupling element, the first and second V-mode coupling elements, and the first and second H-mode coupling elements each consist of a loop, and the first and second V-mode coupling are made with respect to the loop plane of the common coupling loop. The loop planes of the loops have an angular difference of 45° or 45° ± 180°, and the loop planes of the first and second H-mode coupling loops are -45° or -45° with respect to the loop plane of the common coupling loop. ±
A dielectric resonator according to claim 1 having an angular difference of 180°. 5. Parts of the common coupling element, the first and second V-mode coupling elements, and the first and second H-mode coupling elements are composed of probes, and the remaining parts are composed of loops. 1
and the second V-mode coupling element has an angular difference of 45° or 45°±180° with respect to the common coupling element, and the first and second H-mode coupling elements have an angular difference of -45° with respect to the common coupling element. The dielectric resonator according to claim 1, having an angular difference of -45°±180°. 6. The common coupling element consists of a coupling rod, the first and second V-mode coupling elements and the first and second H-mode coupling elements each consist of a probe, and the first and second The axial directions of the two V-mode coupling probes have an angular difference of 45° or 45°±180°, and the axial directions of the first and second H-mode coupling probes have an angle of −45° with respect to the axial direction of the coupling rod. The dielectric resonator according to claim 1, having an angular difference of -45°±180°. 7. The common coupling element consists of a coupling rod, the first and second V-mode coupling elements and the first and second H-mode coupling elements each consist of a loop, and
The loop planes of the first and second V-mode coupling loops have an angular difference of 45° or 45°±180° with respect to the axial direction of the coupling rod, and
The loop plane of the H-mode coupling loop is -45° or -
Claim 1 having an angular difference of 45°±180°
Dielectric resonator as described in section. 8. The common coupling element consists of a coupling rod, one of the first and second V-mode coupling elements and the first and second H-mode coupling element consists of a probe, and the other coupling element consists of a loop. and the first and second V-mode coupling elements have an angular difference of 45° or 45°±180° with respect to the axial direction of the coupling rod with respect to the axial direction and loop plane of the probe, and
The dielectric resonator according to claim 1, wherein the second H-mode coupling element has an angular difference of -45° or -45°±180° with respect to the axial direction of the coupling rod. 9. The common coupling element consists of a stripline,
The first and second V-mode coupling elements and the first and second H-mode coupling elements each consist of a probe, and the axial direction of the first and second V-mode coupling probes with respect to the longitudinal direction of the stripline have an angular difference of 45° or 45° ± 180°, and the axial directions of the first and second H-mode coupling probes are -45° or -45° ± 180° with respect to the longitudinal direction of the stripline. A dielectric resonator according to claim 1, which has an angular difference. 10 The common coupling element consists of a stripline, and the first and second V-mode coupling elements and the first
and the second H-mode coupling element each consist of a loop, and the loop planes of the first and second V-mode coupling loops have an angular difference of 45° or 45°±180° with respect to the longitudinal direction of the stripline. and the loop planes of the first and second H-mode coupling loops are -45° or -45°± with respect to the longitudinal direction of the stripline.
A dielectric resonator according to claim 1 having an angular difference of 180°. 11 The common coupling element consists of a stripline, and the first and second V-mode coupling elements and the first
and the second H-mode coupling element is composed of a probe, the other coupling element is composed of a loop, and the first and second V-mode coupling elements are arranged in the axial direction and the loop plane of the probe. 45° or 45°± to the longitudinal direction of the strip line
The first and second H-mode coupling elements have an angular difference of 180° with respect to the longitudinal direction of the stripline.
The dielectric resonator according to claim 1, having an angular difference of 45° or -45°±180°.