JP3307054B2 - High frequency circuit connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for connecting circuit units for processing electric signals such as quasi-microwaves, microwaves, millimeter waves, etc. TECHNICAL FIELD The present invention relates to a high-frequency circuit connector that can be applied to a circuit that operates on a computer.

2. Description of the Related Art Some electronic circuits, such as circuits composed of a GaAs semiconductor element, a part of a Si semiconductor element having a MOS structure, or a superconductor element, have a low temperature of room temperature or lower, for example, about 4.2K.
It is intended to perform the function and performance in the region of LN ₂ temperatures like of LHe temperature and about 77K.

The circuits used in high-frequency bands such as quasi-microwaves, microwaves and millimeter waves are generally housed in metal containers for each circuit unit, and connectors or waveguides having flexible or semi-rigid coaxial lines are provided between the circuit units. They are connected in a circuit via a pipe or the like.

However, the conventional means for connecting the circuit units has a large shape and causes factors such as an increase in the size of the device and a decrease in the response speed. Further, the use of flexible or semi-rigid coaxial wires is limited due to flexibility loss and changes in characteristics in a low temperature region.

Therefore, there is a demand for development of a high-frequency circuit connector which is compact and can be applied to a circuit operating in a room temperature region or a low temperature region.

[0006]

2. Description of the Related Art FIGS. 2 and 3 are perspective views showing a conventional connection method. In FIG. 2 , circuit units 1 used in bands such as quasi-microwave, microwave, and millimeter-wave are stored in a conductive container 2, and the circuit unit 1 is formed by forming a wiring pattern on a plate of MgO, Al ₂ O ₃ or the like. A circuit element, not shown, is mounted on the substrate 11.

A conductive container 2 for accommodating each circuit unit 1
Is formed of a metal plate or the like so as to withstand severe use in a low temperature range, and the circuit unit 1 is connected via the coaxial connector 3.
When connecting between is comprises a socket 31 on the side surface of the conductive container 2 as shown in FIG.

The signal electrodes (not shown) of the socket 31 are connected to the input / output terminals 13 of the circuit unit 1 formed on the wiring board 11.
The plug 32 of the coaxial connector 3 is fitted to the socket 31 to connect the circuit units 1 with each other.
Is electrically connected via

In the figure, the outer ground conductor is connected between the plugs 32 by a flexible coaxial line 33 formed of, for example, a wire mesh, but instead of the flexible coaxial line 33, the outer ground conductor is connected to the conductor tube. It may be connected by a semi-rigid coaxial line.

When the circuit units 1 are connected via the waveguide 4, the conductive container 2 and the waveguide 4 are integrated as shown in FIG. The unit 1 includes a metal needle 14 which is implanted on the wiring board 11 and connected to the input / output end 13.

A metal needle 14 whose periphery is coated with a dielectric penetrates the conductive container 2 and the wall surface of the waveguide 4 and protrudes into the waveguide 4. The signal output from the end 13 is guided through the waveguide 4 and input to the other circuit unit 1.

[0012]

However, when the connection is made via a coaxial connector, the coaxial connector and the coaxial line are interposed between the conductive containers and occupy a large space. In addition, since the coaxial connector and the coaxial line are interposed, the time required for signal propagation becomes long, and the increase in response speed is limited.

In addition, an LHe temperature of about 4.2K and an LHe of about 77K
In the area of N ₂ temperature etc., the resin becomes brittle and the flexibility of the coaxial wire is impaired, or the difference in heat shrinkage between the conductor and the insulator and the change in characteristics due to it are not negligible and the application is limited. was there.

When circuit units are connected via a waveguide, the waveguide is often screwed to the conductive container, which is difficult to attach and detach, and furthermore, the conductor fixed between the conductive containers. There is a problem that the miniaturization of the apparatus is hindered because the waveguide occupies a large space.

An object of the present invention is to provide a high-frequency circuit connector which is compact and can be applied to a circuit which operates in a room temperature region or a low temperature region.

[0016]

FIG. 1 is a perspective view showing a high-frequency circuit connector according to the present invention. The same object is denoted by the same symbol throughout the drawings.

The above object is to provide an opening 51 provided on a side surface of a container 5 made of a conductive material for housing the circuit unit 1,
A dielectric 52 fitted into the opening 51 and having an inner end surface close to the input / output end 13 of the circuit unit 1; and a guide mechanism 53 formed on the side surface of the container 5 to match the center axis of the dielectric 52 facing the container. When connecting the input / output terminals 13 of the circuit units 1 housed in different containers 5 in a high-frequency circuit, a guide mechanism is used.
Dielectric 52 fitted into each opening 51 using 53
This is achieved by the connector of the present invention in which the different containers 5 are connected after the central axes of the two have been aligned, and the outer end surface of the dielectric 52 abuts.

[0018]

A method of transmitting an alternating electromagnetic field along a guide made of a high-permittivity material or a conductor is known as a signal transmission method in a high-frequency band, and ordinary electric signal transmission lines and electromagnetic wave transmission lines are already known. Often, the methods are appropriately combined.

As shown in FIG. 1, the connector according to the present invention has an opening provided on the side of a container made of a conductive material for accommodating the circuit unit, and an inner end face fitted into the opening and having an input / output end of the circuit unit. And a guide mechanism formed on the side surface of the container when the circuit unit is connected so as to match the center axes of the opposing dielectrics.

When connecting between the input and output terminals of the circuit units housed in different containers in a high-frequency circuit manner, a dielectric member fitted into each opening by using a guide mechanism formed on the side surface of the container. After the central axes are aligned, different containers are connected to each other and the outer end surface of the dielectric is brought into contact with the dielectric, so that the dielectric serves as a guide to transmit a signal.

Such a connector can be used in a low temperature region without being affected by the operating temperature because the signal transmission path is made of a dielectric material. Moreover, the connector portion interposed between the input and output terminals of the circuit unit is small, so that the response speed can be increased and the device can be downsized.

That is, it is possible to realize a high-frequency circuit connector which is compact and can be applied to a circuit operating in a room temperature region or a low temperature region.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the connector according to the present invention is formed of a metal plate so that the conductive container 5 can withstand use in a low-temperature region.
Various circuit elements are mounted on a printed wiring board 11 on which a wiring pattern is formed by Ag.

A circular dielectric 51 made of SrTiO ₃ having a high dielectric constant is provided in a circular opening 51 provided at the center of the side surface of the container 5.
The input / output end 13 of the circuit unit 1 housed in the container 5 is brought into contact with the inner end surface of the dielectric 52 fitted in the opening 51.

Further, the container 5 has a plurality of pairs of guide mechanisms 53 arranged on both sides of the opening portion 51 so as to match the center axis of the dielectric material at the time of connection. And a guide hole 56 formed in another container 5.

When connecting the input / output terminals 13 of the circuit units 1 housed in different containers 5 in a high-frequency circuit, the connector of the present invention fits the guide pins 55 of the guide mechanism 53 into the guide holes 56 of the other side. The central axis of the dielectric 52 fitted in the insertion opening 51 is aligned.

The container 5 has, for example, through holes 57 at opposite positions.
By inserting a bolt or the like into the through-hole 57 and fastening it, the containers 5 approach each other while being guided by the guide mechanism 53, and the outside of the dielectric 52 fitted to the opening 51 of each container 5. The end faces abut.

An opening provided on the side surface of the container made of a conductive material for housing the circuit unit as described above, a dielectric fitted into the opening and having an inner end surface close to the input / output end of the circuit unit, The connector according to the present invention, comprising a guide mechanism formed on the side surface of the container and matching the center axis of the opposite dielectric material, the dielectric material fitted into the opening using the guide mechanism formed on the side surface of the container. After aligning the central axes of
By connecting different containers and bringing the outer end surface of the dielectric into contact, the dielectric serves as a guide to transmit a signal.

[0030]

[0031]

[0032]

When connecting the input / output terminals 13 of the circuit units 1 housed in different containers 5 in a high-frequency circuit, the connector of the present invention fits the guide pins 55 of the guide mechanism 53 into the guide holes 56 of the counterpart. The center of the input / output end 13 fitted in the insertion opening 51 is matched.

The container 5 has, for example, through holes 57 at opposing positions.
By inserting a bolt or the like into the through-hole 57 and fastening it, the containers 5 approach each other while being guided by the guide mechanism 53, and the outside of the dielectric 54 fitted to the opening 51 of each container 5. The end faces abut.

The opening provided on the side surface of the container made of a conductive material for housing the circuit unit as described above, the dielectric material extending around the input / output end of the circuit unit extended and fitted into the opening, and the side surface of the container The connector according to the present invention, which is provided with a guide mechanism that matches the central axes of the input and output ends that are formed in the container, uses the guide mechanism that is formed on the side surface of the container to adjust the central axis of the input and output ends that are fitted into the opening. After the matching, the different containers are connected and the outer end surface of the dielectric is brought into contact, so that the input / output end serves as a guide to transmit a signal.

The connector of the present invention can be used even in a low-temperature region without being affected by the operating temperature because the signal transmission path is made of a dielectric material. Moreover, the connector portion interposed between the input and output terminals of the circuit unit is small, so that the response speed can be increased and the device can be downsized. That is, it is possible to realize a high-frequency circuit connector that is compact and can be applied to a circuit that operates in a room temperature region or a low temperature region.

[0037]

As described above, according to the present invention, it is possible to provide a high-frequency circuit connector which is compact and can be applied to a circuit operating in a room temperature region or a low temperature region.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a high-frequency circuit connector according to the present invention.

FIG. 2 is a perspective view (part 1) showing a conventional connection method.
You.

FIG. 3 is a perspective view (part 2) showing a conventional connection method.
You.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Circuit unit 5 Container 11 Printed wiring board 13 Input / output end 51 Opening 52 Dielectric 53 Guide mechanism 55 Guide pin 56 Guide hole 57 Through hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01P 1/04 H01P 5/08

Claims (1)

(57) [Claims] 1. An opening provided on a side surface of a container made of a conductive material for housing a circuit unit therein, and a dielectric fitted into the opening and having an inner end face close to an input / output end of the circuit unit. And a guide mechanism formed on the side surface of the container to match the center axes of the dielectrics facing each other. When connecting the input / output terminals of the circuit units housed in different containers in a high-frequency circuit, Using the guide mechanism, aligning the central axes of the dielectrics fitted in the respective openings, connecting the different containers, and bringing the outer end surfaces of the dielectrics into contact with each other. High frequency circuit connector.