JPH09130108A - Coaxial waveguide converter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure the electrical connection between the center conductor of a coaxial connector and the inner wider surface of a waveguide with no soldering nor screwing by placing a holding member between a lock member provided on the inner wider surface of the waveguide and the tip of the center conductor of the coaxial connector. SOLUTION: A probe 5 is formed of a thin and elastic plate material and has a recess part at its upper edge center part. A notched part is formed at the tip of a center conductor 3 and can be interfit to the recess part of the probe 5. The other end of the probe 5 is locked by a lock member 4 which is provided on the inner wider surface of a waveguide 1. In such a constitution, the recess part of the probe 5 is interfit to the notched part of the conductor 3 at one of its both ends with the other end locked by the member 4 of the waveguide 1. Furthermore, the prove 5 can be elastically held between the notched part and the member 4 owing to the elasticity to the probe 5.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a coaxial waveguide converter.

[0002]

2. Description of the Related Art FIG. 5 is a vertical sectional view of an example of a conventional coaxial waveguide converter, FIG. 6 is a plan view of the same example, and FIG. 7 is a vertical section of another example of a conventional coaxial waveguide converter. 8 and 9 are plan views of another example.

First, referring to FIGS. 5 and 6, an example of a conventional coaxial waveguide converter is a waveguide 1 and this waveguide 1.
Of the coaxial connector 2, a conductive block 11 provided on the wide surface of the waveguide 1, and a central conductor 10 of the coaxial connector 2. The tip of the central conductor 10 is a block. Soldered at 11 corners.

Next, referring to FIGS. 7 and 8, another example of a conventional coaxial waveguide converter is a waveguide 1 and a coaxial connector provided on a short-circuit surface of the waveguide 1. 2 and the waveguide 1
Conductive triangular block 13 provided on the inner wide surface
And the central conductor 12 of the coaxial connector 2, and the tip of the central conductor 12 is soldered to the side surface of the block 11.

In Japanese Utility Model Laid-Open No. 59-119607, one end of the transducer is screwed to the wide surface of the waveguide, and the other end of the transducer is brought into contact with the central conductor of the coaxial connector. A coaxial waveguide conversion structure is disclosed. In Japanese Utility Model Laid-Open No. 59-11504, one end of a metal plate is soldered to the tip of a ridge, and the other end of the metal plate presses a strip conductor by the elasticity of the metal plate. A microstrip line converter configured to make an electrical connection is disclosed.

[0006]

However, in one example of the conventional coaxial waveguide converter, it is necessary to carry out the connection work between the coaxial connector and the block within the waveguide, and in the case of soldering, the work is easy. It was not reliable. Further, in the case of screwing instead of soldering, in order to maintain contact, special processing such as material and construction method is required, resulting in a high price.

Further, in another example of the conventional coaxial waveguide converter, since the short-circuit surface of the waveguide can be removed, it is necessary to perform the connection work between the coaxial connector and the block outside the waveguide. , Was a cause of increased assembly work.

On the other hand, in the technique disclosed in Japanese Utility Model Laid-Open No. 59-119607, one end of the transducer must be screwed to the wide surface of the waveguide, which is disclosed in Japanese Utility Model Laid-Open No. 59-11504. The technique has a drawback that one end of the metal plate has to be soldered to the tip of the ridge.

Therefore, an object of the present invention is to provide a coaxial waveguide converter capable of electrically connecting the central conductor of the coaxial connector and the wide surface in the waveguide without the need for soldering or screwing. To provide.

[0010]

In order to solve the above problems, the present invention provides a waveguide, a coaxial connector provided on a short-circuit surface of the waveguide, and a wide surface inside the waveguide. It is characterized by comprising a conductive locking member, and a conductive holding member held between the tip end of the central conductor of the coaxial connector and the locking member.

[0011]

According to the present invention, the center of a coaxial connector can be obtained simply by sandwiching a sandwiching member between the locking member provided on the wide surface in the waveguide and the tip of the central conductor of the coaxial connector. The conductor and the wide surface in the waveguide can be electrically connected.

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a longitudinal sectional view of an embodiment of the coaxial waveguide converter according to the present invention, and FIG. 2 is a plan view of the same.
The same components as those in the conventional example are designated by the same reference numerals, and the description thereof will be omitted.

The coaxial waveguide converter includes a waveguide 1, a coaxial connector 2 provided on a short-circuit surface of the waveguide 1, and a conductive stopper provided on a wide surface of the waveguide 1. The tool 4 and the probe (conductive member) 5 sandwiched between the center conductor 3 of the coaxial connector 2 and the stopper 4.

Next, the structure of the sandwiched portion will be described.
FIG. 3 is an assembled perspective view of the sandwiching portion, and FIG. 4 is an exploded perspective view of the same portion.

The probe 5 is formed of a thin plate and has elasticity. A recess 5a is formed in the center of the upper end of the probe 5.

On the other hand, a cutout 3a is formed at the tip of the central conductor 3, and the cutout 3a and the recess 5 of the probe 5 are formed.
It is configured to be able to fit with a.

Further, the other end of the probe 5 is configured to be engaged with a stopper 4 provided on a wide surface in the waveguide 1.

With this structure, the probe 5 has one end and the recess 5a fitted into the notch 3a of the central conductor 3 and the other end locked to the wide-width stopper 4 in the waveguide 1. Further, since an elastic body is used as the probe 5, the probe 5 is bent so as to be sandwiched (fitted) between the notch 3a and the stopper 4.
It is possible. Therefore, the probe 5 can be made difficult to come off.

As described above, since the probe 5 can be fixed only by fitting the probe 5 between the notch 3a of the center conductor 3 and the stopper 4 in the waveguide 1, both ends of the probe 5 are soldered or the like. You can save time. Therefore, the waveguide 1
Installation work inside is also easy.

Therefore, the change of the frequency range can be dealt with by exchanging the probe 5. As an example, a probe 5 having a different width depending on the frequency range may be prepared in advance and replaced with a probe 5 having a required frequency range width.

Since the size of the probe 5 does not need to be generally strict, a certain degree of freedom can be given to the degree of bending when the probe 5 is fitted between the notch 3a and the stopper 4. .

Further, when a casting is used for the waveguide 1, a special treatment such as cleaning work after soldering is conventionally required due to a problem of electrolytic corrosion, but according to the present invention, soldering is unnecessary. As a result, it becomes cheaper in price.

[0023]

According to the present invention, the central conductor of the coaxial connector is held by sandwiching the conductive holding member between the tip of the central conductor of the coaxial connector and the locking member provided on the wide surface of the waveguide. Since the tip and the waveguide are electrically connected, there is an effect that neither soldering nor screwing is required for these connections.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of an embodiment of a coaxial waveguide converter according to the present invention.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is an assembled perspective view of a sandwiching portion of the embodiment.

FIG. 4 is an exploded perspective view of a sandwiching portion of the embodiment.

FIG. 5 is a vertical sectional view of an example of a conventional coaxial waveguide converter.

FIG. 6 is a plan view of the same example.

FIG. 7 is a vertical sectional view of another example.

FIG. 8 is a plan view of another example of the same.

[Explanation of symbols]

 1 Waveguide 2 Coaxial Connector 3 Center Conductor 3a Notch 4 Stopper 5 Probe 5a Recess

Claims (4)

[Claims] 1. A waveguide, a coaxial connector provided on a short-circuit surface of the waveguide, a conductive locking member provided on a wide surface in the waveguide, and a central conductor of the coaxial connector. A coaxial waveguide converter characterized by comprising a conductive sandwiching member sandwiched between the front end portion and the locking member. 2. The coaxial waveguide converter according to claim 1, wherein the sandwiching member is a plate body. 3. The coaxial waveguide converter according to claim 1, wherein the holding member is an elastic body. 4. The tip end portion of the central conductor of the coaxial connector and the end portion of the sandwiching member that is in contact with the tip end portion are formed so as to be fitted to each other.
<3> The coaxial waveguide converter according to any one of <3> to <3>.