JPS5892102A - Connecting method for triplate line - Google Patents

Abstract

PURPOSE:To connect triplate lines easily, by exposing a conductor through breaking off a part of dielectic of a conductor part to be connected in a triplate line and inserting a conductor to the notched part. CONSTITUTION:In connecting triplate lines 100 and 200, a notch 6 is provided for a part to be connected. Then, a small piece 7 is prepared to insert it to the notch 6. One side of the small piece 7 made of the same material 31 as that of a dielectric 3 is metallized 51 entirely and the other side is metallized 11 in the same width as that of a center conductor 1. In connecting the triplate lines, both lines are butted and closely adhered together, and the small piece 7 is inserted to the notch 6 and fixed with an adhesives.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for connecting a microwave transmission line, particularly a microgauze transmission line having a triplate structure.

Waveguides, coaxial lines, etc. are usually used as microwave transmission lines, but planar circuits with circuits formed on dielectric substrates are also increasingly being used to make devices smaller and lighter. It has become.

Examples of this planar circuit include a coplanar line, a microstrip line, and a triplate line. The triplate line, which is the subject of this description, will be explained below.

Figure 1 is a perspective view showing the configuration of a general triflate line, where (1) is the center conductor, (2) and (3) are dielectric plates narrowing the center conductor (1), and (4) and ( 5) are ground conductors bonded to the outer surfaces of dielectric plates (2) and (3), respectively. The tri-plate line thus connects the center conductor (1) to the ground conductor (4). Since the structure is surrounded by (5), it is possible to construct a microwave transmission line with less radiation loss and less loss than other planar circuits such as a microstrip line.

Figure 2 is a perspective view showing an example of the manufacturing method of this triplate line. First, a dielectric plate whose main component is a dielectric material with low high frequency loss such as Teflon is pasted with copper foil etc. on both sides. The center conductor (1) is made into a dielectric material (2) by leaving the copper foil on one side as it is and etching the conductive foil on the other side, leaving the required part.
) is formed. Also, use a dielectric plate with copper foil pasted on only one side, or remove all the copper foil on one side of the dielectric plate with copper foil pasted on both sides as described above, and ground the dielectric plate (3). A second substrate consisting of a conductor (6) is formed. Thereafter, these first and second substrates are stacked in the direction shown in FIG. 2 in the direction of the arrow to form a triplate line as shown in FIG. 1. and,
To overlay and secure the two substrates shown in Figure 2,
Method of bonding with adhesive and both liquid ground conductors (4) Phantom and (
There is a method of 5) in which the outer surface is sandwiched between metal members, but the latter method is usually used because it is simple.

As mentioned earlier, the triplate circuit has good performance such as low radiation loss, but as is clear from Figure 1, the circuit is embedded in a dielectric medium. Therefore, for example, it is difficult to connect circuits formed on two substrates, and there has been no suitable method in the past.

The present invention has been made in view of these points, and provides a method for connecting two triplate circuits.

FIG. 8 shows an embodiment of the present invention, and shows a method of connecting two triplate circuits ((2)) and (200).

First, a notch h (a) is provided in the part to be connected to expose the center conductor (1). Next, prepare a small piece (7) that fits into this notch. The small piece (7) is made of the same material as the dielectric (3), and one side is entirely metallized and the other side is metallized to the same width as the center conductor (1). To connect the tri-plate circuit (direction) and (circle), align both circuits in the direction of arrow A and bring them into close contact, and then fit the small piece (7) into the notch in the direction of arrow B. The small piece (1) may be fixed using adhesive, soldering, or mechanically fixed by pressing with a metal plate or the like.

As described above, according to the present invention, triplate circuits can be easily connected to each other. In addition, if the mechanical strength is insufficient for a single connection, as shown in Fig. 184, a large number of notches can be provided and similar pieces (2) can be inserted to reinforce them.

[Brief explanation of drawings]

FIG. 1 is a perspective view for explaining the triplate line, FIG. 2 is an exploded perspective view showing its construction method, FIG. FIG. 4 is a perspective view showing another embodiment of the present invention. In the figure, (1) is the center conductor, <2), (S) is the dielectric plate, and (4). (15) C ground conductor, (6) C notch, (7Le
nll indicates a small piece, (2) indicates a dielectric portion of the small piece, and (b) indicates a metal rise portion. In the figures, the same reference numerals indicate the same or corresponding parts. Agent Ge Shuxin

Claims (1)

[Claims] When connecting a microwave circuit with two triplate lines, the dielectric part of the part to be connected is partially cut out to expose the line, and the - side is metallized in the same way as the power line to be connected. A method for connecting triplate lines, in which the triplate lines are connected to each other by fitting a small conductor piece whose other surface is entirely metallized into a notch formed in the part to be connected.