JPH0134432Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a delay line, and particularly to a laminated type delay line.

For example, as shown in Fig. 1, a delay line consisting of an inductor and a capacitor has lines L ₁ , L ₂ , L ₃ ,
L ₄ is connected in series, C ₁ , C ₂ , C ₃ , C ₄ , and C ₅ are connected in parallel, terminal F is grounded, and a delay characteristic is provided between terminals A and E.

According to the present invention, this type of delay line is constructed from a laminated body having an extremely simple structure, and the manufacturing process can be simplified and the delay line can be made smaller. The delay line of the present invention is an alternately laminated body of coil-forming conductors and magnetic layers, and the conductor forms a conductor coil that goes around from one layer of the magnetic layer to the next. a first laminate having terminal electrodes drawn out from the winding start point of the coil, the winding end point, and at least one intermediate point from the winding start to the winding end to different places around the periphery by separate lead-out conductors; , a plurality of sets of alternating laminates of capacitance-forming electrodes and dielectric layers, each set of electrodes being a single laminate with a second laminate led out to the periphery by a conductor; The drawn ends of one polarity of the plurality of sets of capacitance forming electrodes are respectively connected to the plurality of terminal electrodes of the coiled conductor, and the other polarity of the plurality of sets of capacitance forming electrodes are collectively connected to independent terminal electrodes. This is a laminate delay line.

In this way, the present invention has two types of laminates:
This has the advantage that a delay line can be easily and efficiently constructed simply by selecting a conductive pattern. The present invention will be explained in detail below.

2 to 15 show the manufacturing method and structure of the magnetic layer portion of the delay line of the present invention. In the following, a magnetic layer is a layer formed by printing a paste of magnetic ferrite powder, and a dielectric layer is a layer formed by printing a paste of magnetic ferrite powder.
Layers made from printing of pastes of dielectric powders such as _BaTiO3 , conductors are layers made from printing of pastes of metal powders such as Ag, Ag-Pd, Pd. The stack of these layers is then sintered,
Conductors for connections and external terminals are baked onto the outside, and are made from the same metal powder.

A magnetic layer 1 is formed as shown in FIG. 2, a conductor 2 is formed on it as shown in FIG. 3, a conductor 4 is formed following the conductor 2 as shown in FIG. 5, and at the same time, a lead-out portion b is also formed. A part of the laminate is covered with a magnetic layer 5 as shown in FIG. 6, and then a conductor 6 is printed as shown in FIG. 7, and at the same time, the lead portion c is also printed. 8th
A magnetic layer 7 is formed as shown in the figure, and a conductor 8 is formed thereon to be connected to the lower conductor 6 as shown in FIG. 9, and at the same time, a lead-out portion d is also formed.
Next, a magnetic layer 9 is formed as shown in FIG. 10, and a conductor 10 is printed to be connected to the conductor 8 as shown in FIG. Then, as shown in FIG. 12, a magnetic layer 11 is formed to cover the surface of the laminate. The thus obtained laminate is fired at a high temperature to form a sintered body, which is superimposed and bonded to a dielectric layer portion to be described later. Alternatively, the overlapping with the dielectric layer portion may be performed first, and then the firing may be performed.

FIG. 13 shows a dielectric layer portion, and as shown in FIG. 13, an electrode 13 is formed on the dielectric layer 12, and one end of the electrode 13 is drawn out to the left side to form a lead-out portion f. After forming a dielectric layer 14 thereon as shown in FIG.
The electrodes 15, 16, 17, 18, and 19 are formed spaced apart from each other, and one end of each is connected to the second to twelfth electrodes.
It is pulled out to positions overlapping with the drawer parts a, b, c, d, and e in the figure to form the drawer parts a', b', c', d', and e'. moreover,
A dielectric layer 20 is laminated on the entire surface as shown in FIG. After firing this laminate, it is overlapped with the magnetic layer portion. Alternatively, as described above, the two may be overlapped before firing and then fired and bonded together.

External terminals A, A, and F are respectively attached to the lead-out ends a, a'; b, b'; c, c'; d, d'; e, e'; and f exposed around the periphery of the obtained sintered composite laminate. B,C,
Apply and bake D, E, and F to complete the day delay line of this invention. This circuit configuration is as shown in FIG. Terminal F is a grounding terminal connected to the common electrode of the capacitor. Terminals A, B, C, D,
E is connected to the opposite electrode of the capacitor, and these opposite electrodes are connected before and after each inductor in order from the input end to the output end of the series inductor.

As described above, according to the present invention, a desired delay line can be easily constructed by a simple lamination method, and the delay line thus obtained has a small chip structure and is a highly integrated delay line.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a delay line, FIGS. 2 to 15 are plan views showing the manufacturing process and structure of a delay line according to an embodiment of the present invention, and FIG.
FIG. 6 is a perspective view of the delay line of the present invention. The main parts in the figure are as follows. 1, 3, 5,
7, 9, 11...magnetic layer, 2, 4, 6, 8, 1
0...Inductor conductor, 12, 14, 20...
Dielectric layer, 13, 15, 16, 17, 18... Electrode, a, b, c, d, e, f, a', b', c', d',
e'... Leading end, A, B, C, D, E, F... Terminal electrode.

Claims (1)

[Scope of utility model registration request] A coil-forming conductor and a magnetic layer are alternately laminated, the conductor forming a conductor coil that goes around from one layer of the magnetic layer to the next, and where the conductor coil starts winding, A first laminate having terminal electrodes drawn out to different places around the periphery by separate lead-out conductors from the end of the winding and at least one place in the middle from the beginning of the winding to the end of the winding, and a plurality of sets of capacitance formation. a laminated body of alternately laminated electrodes and dielectric layers, each set of electrodes being an integrated body with a second laminated body led out to the periphery by a conductor, and the plurality of sets of electrodes for forming capacitances; A laminated derailleur in which one polarity of the lead-out end of the electrode is connected to a plurality of terminal electrodes of the coiled conductor, and the other polarity of the plurality of capacitance forming electrodes are collectively connected to an independent terminal electrode. in.