JPS60214101A - Unit structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a unit structure for a microwave to millimeter wave band such as a transmitting/receiving panel.

(b) Background of the technology To obtain stable input/output electrical characteristics, microwave or millimeter wave band units such as transmitter/receiver panels of multiplex radio equipment are equipped with isolators and other Must be connected to the circuit inside the panel.

(C) Prior Art and Problems FIG. 1 is a partially cutaway perspective view showing the structure of a conventional unit of this type.

In Fig. 1, the unit 1 is a box-shaped unit with a shield structure in which a control system, a transmission/reception module such as a power supply, and a microwave or millimeter wave band module unit (hereinafter simply referred to as a microwave module) are made of a metal plate (not shown). Housing case 2
It is housed and configured within. Further, a coaxial connector 6 having an insertion portion on the inside and outside of the housing casing 2 so as to be connectable with another coaxial connector is attached to the side plate of the housing casing 2 as a shield. The microwave module 5 is configured to be connected via the coaxial connector 6 to a coaxial isolator 4, which will be described later, and which is mounted on the outside of the housing casing 2.

The microwave module 5 with the coaxial connector 8 attached to the end face is adjusted independently and then fixed to the mounting plate 9.
The coaxial connector 8 and the coaxial connector 6 are connected by a suitably bent pipe cable 7.

The interface waveguide 3 and the coaxial isolator 4, which are connected to an external circuit, are connected by a coaxial connector. After the coaxial isolator 4 is adjusted together with the interface waveguide 3, the coaxial connector attached to the end face is inserted into the coaxial connector 6, and then connected to the microwave module 5 via the pipe cable 7 in the accommodation housing 2. It is connected to the.

However, in the unit 1 having such a structure, after the coaxial type isolator 4 and the microwave module 5 are connected, the housing case 20 cover 2A is removed and disassembled, and the side axis type isolator 4 and the microwave module 5 are combined. have to adjust.

This poses a problem in that the reproducibility of electrical characteristics is poor. In addition, the presence of the pipe cable 7 increases transmission loss, requires a space for attaching and detaching the pipe cable 7 within the housing 2, which may result in an increase in size, and mechanical contact points such as coaxial connectors and pipe cables are required. In many cases, electrical stability may be lacking.

(d) Object of the Invention In view of the above-mentioned conventional problems, the object of the present invention is to connect an isolator and a microwave module via a connection plate, and after composite adjustment, install the microwave module as a shield in a housing case. The object of the present invention is to provide a unit that is easy to install, has stable electrical characteristics, and is miniaturized as a whole.

(e) Structure of the Invention In order to achieve this object, the present invention comprises a waveguide located outside the casing and connected to an external circuit, and a module section connected to the waveguide and located in the casing. , consisting of a flange-like connection plate provided on the module part and a casing in which an insertion hole for the module part is formed in the wall, and the module part is inserted through the hole in the casing and the connection plate contacts the wall surface. The shield connection is made by fixing the wire to the shield.

(f) Embodiments of the Invention The present invention will be described in detail below with reference to illustrated embodiments. Note that the same reference numerals indicate the same objects throughout the figures.

FIG. 2 is a perspective view of one embodiment of the invention, and FIG. 3 is a perspective view of another embodiment of the invention.

In FIG. 2, the unit 20 includes a control system, a transmitting/receiving module such as a power supply (not shown) housed in a box-shaped housing housing 21 with a shield structure made of a metal plate, and a housing housing 2.
1. An interface waveguide mounted on the outside of 3. It is composed of a coaxial isolator 4 and a microwave module 10 that is mounted in a housing casing 21 after being subjected to composite adjustment with the coaxial isolator 4.

The interface waveguide 3 and the coaxial isolator 4, which are connected to an external circuit, are connected by a coaxial connector. A coaxial connector for connecting to the microwave module 10 is attached to the end face of the coaxial isolator 4.

The coaxial isolator 4 and the interface waveguide 3 are adjusted so as to obtain desired characteristics.

A connecting plate 1 in the form of a rectangular plate having a similar shape sufficiently larger than the end face shape of the microwave module 10 is attached to the end face of the microwave module 10 which is adjusted so as to obtain the desired characteristics when used alone. . A coaxial connector 12 for connecting to the coaxial isolator 4 in a coaxial structure is attached to the connection plate 11.

The microwave module 10 connects the coaxial connector 12 attached to the connecting plate 11 to the coaxial connector attached to the end face of the coaxial isolator 4.
After being mechanically and electrically combined with the material, composite adjustments are made to obtain the desired characteristics.

21 includes a transmitter/receiver module (not shown) and an interface waveguide 3. It is a box-shaped accommodation case with a shield structure made of a metal plate into which only a portion of the microwave module 10 coupled to the coaxial isolator 4 is inserted and mounted. A module through-hole 14 is formed in the side plate of the housing casing 210 so that the microwave module 10 can pass therethrough and be hung in the housing casing 21 . The connection plate 11 is fitted into the peripheral edge of the outer end surface of the module through hole 14.
A rectangular connection plate insertion recess 13 is provided in which the plane of the microwave module 10 side is in close contact with the bottom plate surface of the recess. The bottom plate surface of the connection plate insertion recess 13 has screw holes 1 corresponding to the screw insertion holes 11a provided in the connection plate 11.
3a is provided. Insert the microwave module 10, which has already been subjected to composite adjustment, into the module through-hole 14 of the housing casing 21, fit the connection plate 11 into the connection plate insertion recess 13 so that it fits tightly, and tighten it with a small screw (not shown). It's stuck.

As mentioned above, the interface waveguide 3. A microwave module 10 that has been combined and integrated with a coaxial isolator 4 is suspended and shielded in a housing casing 21,
In addition, since it is mechanically fixed, there is no need for the trouble of adjusting the microwave module 10 again after mounting it in the housing casing 21. Furthermore, since the microwave module 10 is suspended within the housing casing 21, there is no need for a mounting plate or a pipe cable, and the housing casing 21 can be made smaller. Furthermore, since there is no mechanical coupling member such as a pipe cable, the electrical characteristics are also stable.

In FIG. 3, the unit 22 includes a transmitting/receiving module (not shown) such as a control system, a power supply, etc. housed in a box-shaped housing housing 21 with a shield structure made of a metal plate, and the housing housing 21.
Interface waveguide installed on the outside of3. It is composed of a waveguide type isolator 15 and a microwave module 10 that is combined with the waveguide type isolator 15 and subjected to composite adjustment and then mounted in a housing casing 21.

The interface waveguide 3 is a waveguide isolator 1
5 is flange connected. The waveguide isolator 15 and the interface waveguide 3 are adjusted so as to obtain desired characteristics.

A connecting plate 11 in the form of a rectangular plate, which is sufficiently larger than the end face shape of the microwave module 10, is attached to the end face of the microwave module 10, which has been rounded so as to obtain the desired characteristics when used alone. There is. A rectangular hole corresponding to a predetermined frequency is bored in the center of the connecting plate 11, and the upper plane thereof is configured so that the flange of the waveguide 16 is tightly fixed thereto. The microwave module 10 and the waveguide type isolake 15 are electrically connected to each other via the waveguide 16.
Mechanically coupled.

After integrating the microwave module 10 and the waveguide isolator 15 in this manner, the microwave module 10 and the waveguide isolator 15 are subjected to complex adjustment so as to obtain desired characteristics.

Insert the microwave module 10 that has already undergone composite adjustment into the module through-hole 14 of the accommodation housing 21, and connect the connecting plate 11.
is inserted into the connection plate insertion recess 13 and brought into close contact, and is secured with machine screws (not shown).

As mentioned above, the interface waveguide 3. The microwave module 10, which has been combined and integrated with the waveguide isolator 15, is shielded in a suspended state from the housing casing 21 and is mechanically fixed. There is no need to worry about having to make adjustments again after mounting within 21.

It should be noted that coaxial connectors and pipe cables are difficult to apply to high frequencies (for example, 9 GHz or higher).Since the unit 22 of the embodiment shown in Fig. 3 is all connected with waveguides, there are limitations on the frequency. It has the advantage that it can be applied to transmitting boards and/or receiving boards in a wide range of frequency bands.

(g) Detailed Description of the Invention As described in the present invention, the isolator and the microwave or millimeter wave band module are connected via the connection plate and mounted in the accommodation housing in a compositely adjusted state, so that the electrical characteristics It has practical advantages such as being stable, easy to install in the storage case, compact by making the most of the mounting space of the storage case, and reducing transmission loss by reducing the number of connections such as connectors. It has excellent effects.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing the structure of a conventional unit, FIG. 2 is a perspective view of an embodiment of the present invention, and FIG.
The figure is a perspective view of another embodiment of the present invention. In the figure, 1.20.22 is the unit, 2.21 is the housing case,
3 is an interface waveguide, 4 is a coaxial isolator, 5 and 10 are microwave to millimeter wave band modules, 6
, 8 and 12 are coaxial connectors, 7 is a connecting plate for the pipe cable 11, 13 is a connecting plate insertion recess, 14 is a module through hole, and 15 is a waveguide type isolator. Falcon l〆Figure 2 Sheep 3 Figure 5

Claims (1)

[Claims] A waveguide located outside the casing and connected to an external circuit, a module part connected to the waveguide and located in the casing, a flange-shaped connection plate provided on the module part, and a flange-like connection plate provided on the module part. A unit comprising a casing having an insertion hole formed in a wall, the module portion being inserted through the hole of the casing, and the connecting plate being fixed in contact with the wall surface to achieve a shield connection. structure.