JPH0246100Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Present Invention] The present invention relates to a delay line in which a coil and a capacitor are formed into one unit.

[Prior art and its problems]

Conventional delay lines that combine a coil and a capacitor have separate coils and capacitors, so
The work of assembling them, especially the work of connecting coils and capacitors by numerous solders, is troublesome. If the coil for the daytime line is manufactured separately, winding work is also added. Also, by combining separate parts, the shape becomes larger.

[Purpose of invention]

The purpose of the present invention is to provide a delay line in which a coil is formed by a conductor pattern on a dielectric material, and the conductor pattern is used to obtain distributed capacitance, essentially forming a coil and a capacitor in one body. .

[Means for solving problems]

The delay line of the present invention has a first conductor pattern that extends in a fixed direction while curving in a zigzag pattern, and a second conductor pattern that is opposite to the first conductor pattern to obtain a distributed capacitance on a dielectric base. Slits are formed in the substrate so as to be provided on the front and back surfaces and alternately with the zigzag-shaped conductors of the first conductor pattern, and the dielectric substrate is formed so that the first conductor pattern forms a coil around the slits. A coil is formed using the first conductor pattern by modifying the first conductor pattern.

[Example of idea]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a delay line according to the present invention will be described below with reference to FIGS. 1 to 6. Figure 1 is an assembled plan view, Figure 2 is a left side view of Figure 1, and Figure 3 is a left side view of Figure 1.
The figure is a side view of the base, Figure 4 is a plan view of the base, and Figure 5 is a side view of the base.
The figure is a plan view of the back side of FIG. 4, and FIG. 6 is a plan view of the magnetic body. 1 to 6, 1 is a dielectric substrate, 2 is a zigzag first conductor pattern, 3 is a slit, 4 is a second conductor pattern, and 5 is a zigzag-shaped first conductor pattern.
is a magnetic material that acts as a core.

The base 1 is made of a film-like synthetic resin, such as polyimide resin, and has a first conductor pattern 2 formed on its surface as shown in FIG. The first conductor pattern 2 extends in the length direction of the base 1 while being curved in a zigzag shape. On the back side, there is a number 1 as shown in Figure 5.
A second conductor pattern 4 facing the conductor pattern 2 is formed on almost the entire surface. Between the mutually parallel zigzag portions 6 of the first conductor pattern 2, a first
A slit 3 is provided that extends in the direction in which the conductor pattern 2 extends, that is, in a direction perpendicular to the length direction of the base body 1. The second conductor pattern 4 is provided to face the first conductor pattern 2 in order to obtain distributed capacitance, and is located on the back surface below the position indicated by the dotted line in FIG. 4 at the upper end of the slit 3. There are none nearby. This is to prevent the inductance from decreasing due to the first conductor pattern 2 that will be raised later.
The conductor pattern 4 should not exist in a loop around the magnetic material 5. The first conductor pattern 2 and the second conductor pattern 4 can be formed using a known technique such as silver or copper printing or plating.

As shown in FIG. 6, the magnetic body 5 is made of a thin plate-shaped ferrite, and is inserted from the left side into the slit 3 alternately from the back side to the front side and from the front side to the back side, just like passing a sewing thread. By widening the slit 3 in this manner, the parallel zigzag portion 6 of the first conductor pattern 2 is divided into a front side and a back side, forming a coil wound around the magnetic body 5.

Since the coil formed by the first conductor pattern 2 has a distributed capacitance in parallel, by connecting input/output terminals at both ends thereof and a ground terminal to the second conductor pattern 4, a coil and a capacitor are essentially formed as one unit. The daily line is completed. The inductance obtained by the first conductor pattern 2 increases by narrowing the pitch interval P of the zigzag portion 6, and the distributed capacitance increases by increasing the vertical length L of the second conductor pattern 4. to control the characteristics of the delay line. The distribution capacity can be adjusted using the base 1.
It can also be done by changing the material and thickness. In the embodiment, the magnetic material 5 is inserted through the slit, but
The shape of the base body 1 is fixed in the inserted state, and the magnetic body 5 is
You can also leave it blank by excluding . The zigzag portion 6 may be non-parallel by directly bending it without going through the portion 7 which is parallel to the direction in which the first conductor pattern 2 extends. Further, it is clear that the first conductor pattern and the second conductor pattern can be formed in a zigzag shape in the circular direction, and in that case, the magnetic body will also be circular. The magnetic body 5 may be a synthetic resin in which magnetic powder is dispersed. Further, the substrate may be a green sheet with a conductive pattern formed and sintered, and there is no need to be limited to polyimide resin or other synthetic resin.

[Effect of idea]

As described above, the delay line of the present invention forms a coil using the first conductor pattern on the dielectric, and at the same time obtains distributed capacitance in parallel with the coil using the first conductor pattern and the second conductor pattern. It has a structure in which the coil and the capacitor are essentially integrated into one body. Therefore, the work of connecting the coil and the capacitor and the work of winding the coil are completely unnecessary. Furthermore, since the coil is formed by a conductor pattern and distributed capacitance is obtained, it can be made smaller and thinner.

In this way, the delay line of the present invention can solve all the drawbacks of conventional delay lines and is extremely practical.

[Brief explanation of the drawing]

Figure 1 is an assembled plan view showing an embodiment of the daytime line of the present invention, Figure 2 is a left side view of Figure 1, and Figure 3 is a left side view of Figure 1.
The figure is a side view of the base, Figure 4 is a plan view of the base, and Figure 5 is a side view of the base.
The figure is a plan view of the back side of FIG. 4, and FIG. 6 is a plan view of the magnetic core. 1: Base, 2: First conductor pattern, 3: Slit, 4: Second conductor pattern, 5: Magnetic material,
6: Zigzag part.

Claims (1)

[Claims for Utility Model Registration] (1) A first conductor pattern that extends in a certain direction while being bent in a zigzag pattern, and a second conductor pattern that faces the first conductor pattern to obtain distributed capacitance. slits are provided on the front and back surfaces of the base body of the body, and slits are formed on the base body so as to alternate with the zigzag-shaped conductors of the first conductor pattern;
A delay line characterized in that the base body is deformed so that the first conductive pattern forms a coil around the slit. (2) The day line according to claim 1 of the utility model registration, which is formed by passing an insulating sheet through the slit so as to be sewn around the base. (3) The day line according to claim 1, which is a utility model, and is formed by threading a magnetic material through the slit so as to thread the base.