JPS6272203A - Method of mounting dielectric resonator - Google Patents

Abstract

PURPOSE:To facilitate the degree of coupling adjusting work and bonding work by forming a square hole the width of any side of which is smaller than the outer size of a dielectric resonator in parallel near a strip line formed to a dielectric base and inserting the flat face of a dielectric resonator to the square hole in parallel with a strip a line. CONSTITUTION:A dielectric base 3 made of alumina of flow glass on the surface of which a strip line 4 made of a conductor metal such as copper is formed is provided with a square hole 8 the width of any side in parallel near the strip line 4 of which is smaller than the diameter of the dielectric resonator 1 and a rear conductor 5 is formed to the rear face of the dielectric base 3, which is fixed to a case 6 made of a metal such as aluminum so that the rear conductor 5 is brought into contact. Then after the dielectric resonator 1 is inserted to the square hole 8, the dielectric resonator 1 is made close to the strip line 4 and the magnetic field coupling is adjusted and the resonator 1 is bonded to the adhesive 7 to the square hole 8 of the dielectric base 3.

Description

[Detailed Description of the Invention] A method for mounting a dielectric resonator on a dielectric substrate (C lamination), the method comprising:
A square hole is bored adjacent to the strip line formed on the dielectric substrate, the width of one of which is smaller than the outer diameter of the dielectric resonator, and the dielectric resonator is inserted thereinto to adjust the degree of coupling and fixed by adhesive.

[Industrial application field]

The present invention relates to a method for mounting a dielectric resonator, and particularly to a method for mounting a dielectric resonator that allows easy adjustment of the degree of coupling with a strip line and easy fixation.

A dielectric filter used as an output filter for oscillators in the microwave band, millimeter wave band, etc. is constructed by arranging multiple dielectric resonators on a dielectric substrate at intervals corresponding to the frequency used. ing.

However, it is difficult to adjust the degree of coupling with the strip line, and there are also difficulties in the fixing work, so there is a strong demand for an improvement in the mounting method for dielectric resonators that allows the degree of coupling, 1M alignment, and easy fixing work.

(Prior Art) FIG. 3 is a diagram illustrating a conventional mounting method of a dielectric resonator, in which (a) is a perspective view and (b) is an example cross-sectional view.

In the figure, a dielectric substrate 3 made of alumina, flow glass, etc., on which a strip line 4 made of a conductive metal such as copper is formed, and a back conductor 5 formed on the back surface, is connected to a case 6 made of a metal such as aluminum. The back conductor 5 is fixed so that it is in contact with the back conductor 5 side. The dielectric resonator 1, which is magnetically coupled to the strip line 4 and resonates, is attached to a support base 2 made of a dielectric material such as quartz glass using an adhesive 7.
After adjusting the degree of coupling between the dielectric resonator 1 and the strip line 4, the support base 2 is attached to the case 6 with the adhesive 7.
It will stick.

FIG. 4 is a diagram explaining another method of mounting a conventional dielectric resonator. is attached.

In the figure, a dielectric substrate 3 made of alumina, flow glass, etc., on which a strip line 4 made of a conductive metal such as copper is formed, and a back conductor 5 formed on the back surface, is connected to a case 6 made of a metal such as aluminum. Then, bond the five back conductors with solder or the like so that they are in contact with each other. Then, the dielectric resonator l, which is magnetically coupled to the strip line 4 and resonates, is placed adjacent to the strip line 4 for coupling adjustment, and then the dielectric substrate 3
Glue it with adhesive 7.

[Problem that the invention seeks to solve]

In the conventional mounting method for dielectric resonators described above, the dielectric resonator is brought close to the strip line to adjust the magnetic field coupling, and then it is bonded with adhesive. During this time, the dielectric resonator moves in the direction of the arrow shown in FIGS. 1 and 2, causing a problem in that the degree of coupling shifts.

(Means for Solving the Problems) The present invention solves the above-mentioned problems and provides a method for mounting a dielectric resonator that facilitates magnetic field coupling degree adjustment and bonding, and eliminates coupling deviation. .

That is, in the method of mounting a dielectric resonator on a dielectric substrate, a rectangular hole is formed in parallel to the strip line formed on the dielectric substrate, and the width of either side is smaller than the outer diameter of the dielectric resonator. This problem can be solved by forming a rectangular hole and inserting and fixing the flat surface of the dielectric resonator parallel to the strip line.

[Function] The above-mentioned mounting method for the dielectric resonator is to adjust the magnetic field coupling with the strip line by inserting the dielectric resonator into a square hole formed on the dielectric substrate so that the flat part of the dielectric resonator is parallel to the strip line. (After alignment, fix with adhesive.

〔Example〕

FIG. 1 is a diagram illustrating an embodiment of the present invention.
t is a front view showing a cross section of a main part, and (b) is a side view, in which parts equivalent to those in FIG. 4 are given the same reference numerals.

In the figure, a strip line 4 made of alumina, flow glass, etc. and made of a conductive metal such as copper is formed on the surface, and a dielectric resonator is formed parallel to the strip/knob line 4 and the width of either side is parallel to the strip line 4. A dielectric substrate 3 having a square hole 8 smaller in diameter than 1 and having a back conductor 5 formed on its back surface is fixed to a case 6 made of metal, such as aluminum, so that the back conductor 5 side is in contact with the case 6. After inserting the dielectric resonator 1 into the square hole 8, the dielectric resonator 1 is brought close to the strip line 4 to adjust the magnetic field coupling. 7
Glue with.

FIG. 2 is a diagram illustrating another embodiment of the present invention, and FIG.
ar is a front view showing a cross section of a main part, and (b) is a side view.

In FIG. 2, the method for mounting a dielectric resonator of the present invention is similar to that in FIG. 1, and includes a dielectric substrate, a dielectric resonator, a strip line, a case, etc. It has different characteristics. Therefore, the parts other than the dielectric resonator 9 are given the same reference numerals as in FIG. 1, and the explanation of these parts will be omitted here.

The dielectric resonator 9 that characterizes the present invention is formed into a square shape,
The width of one side of the square hole 8 formed in the dielectric substrate 3 is square and smaller than the diagonal of the dielectric resonator 9. After inserting the dielectric resonator 9 into the square hole 8, After the dielectric resonator 9 is brought close to the strip line 4 and the coupling is adjusted, it is bonded to the square hole 8 of the dielectric substrate 3 with an adhesive 7.

Note that although the dielectric resonator 9 has been described as having a quadrangular shape, it is not limited to a quadrangular shape, but may be other plural polygonal shapes.

[Effects of the Invention] As is clear from the above description, the present invention facilitates bonding adjustment work and bonding work, eliminates misalignment, and is extremely effective in improving reliability.

[Brief explanation of drawings]

FIG. 1 is a diagram illustrating an embodiment of the present invention.
) is a front view showing a cross section of the main part, (b) is a side cross sectional view, FIG. b) is a side sectional view, Fig. 3 is a
This is a diagram explaining the mounting method of a conventional dielectric resonator.
at is a perspective view, (b) is +! 1.11 sectional view, FIG. 4 is a diagram explaining another mounting method of a conventional dielectric resonator,
The figure (al is a perspective view, and (b) is a side sectional view. In the figure, 1.9 is a dielectric resonator, 2 is a support base, 3 is a dielectric substrate, 4 is a strip line, and 5 is a back conductor. , 6 indicates the case, 7 indicates the adhesive, and 8 indicates the square hole.
2 Figure 3 @ Figure 4

Claims (1)

[Claims] A method for mounting a dielectric resonator (1) on a dielectric substrate (3), comprising: a strip line (4) formed on the dielectric substrate (3);
A rectangular hole (8) is formed in parallel with the dielectric resonator (1), and the width of either side is smaller than the outer diameter of the dielectric resonator (1). A method for mounting a dielectric resonator, characterized in that the dielectric resonator is inserted and fixed in parallel with a strip line (4).