JP2020145069A - High frequency module - Google Patents

Abstract

To obtain a high frequency module with an L-shaped coaxial connector whose position and orientation are precisely defined.SOLUTION: A high frequency module 20 includes a module body 1 with a cavity, and an L-shaped coaxial connector 2 mounted on a connector mounting surface 1b which is one side of the cavity, and the L-shaped coaxial connector 2 includes a flange 3 that abuts on the connector mounting surface 1b, a module internal interface 5 protruding from the flange 3 and inserted into the cavity, a module external interface 4 connected to a component, and a key 7 formed at the corner formed by the flange 3 and the module internal interface 5, and the module body 1 includes a connector mounting hole into which the module internal interface 5 is inserted, and a keyway 8 formed on the edge of the connector mounting hole and matable with the key 7.SELECTED DRAWING: Figure 4

Description

The present invention relates to a high frequency module in which a stack structure is used.

High frequency modules, also called RF (Radio Frequency) modules, are required to be miniaturized. Therefore, in the stack structure in which the high-frequency module and the component are stacked, an L-shaped coaxial connector is used for connecting the high-frequency module and the component. The L-type coaxial connector is disclosed in Patent Document 1.

The L-shaped coaxial connector disclosed in Patent Document 1 has a structure in which a coaxial cable is used for joining between the connectors so as to relax the position accuracy and give a degree of freedom in the position.

JP-A-2009-301903

However, the L-shaped coaxial connector disclosed in Patent Document 1 requires a space for crawling a coaxial cable and an assembly space for connecting the stacked high-frequency modules and components. In particular, in a configuration in which a plurality of high-frequency modules are arranged, such as an active phased array antenna, the space occupied by each high-frequency module becomes large, and it becomes difficult to increase the degree of integration and arrange a plurality of high-frequency modules.

When mating the connector on the high frequency module side and the connector on the component side without using the coaxial cable, the space for the coaxial cable is not required, but the connectors, which are rigid members, are mated with each other. In addition, high accuracy is required for the position and orientation of the connector. Since the position and orientation of the L-shaped coaxial connector disclosed in Patent Document 1 cannot be determined with high accuracy unless an assembly jig is used, if the L-shaped coaxial connector is fitted to the connector on the component side without using a coaxial cable, Fitting defects may occur due to misalignment of position and orientation.

The present invention has been made in view of the above, and an object of the present invention is to obtain a high-frequency module provided with an L-shaped coaxial connector whose position and orientation are determined with high accuracy.

In order to solve the above-mentioned problems and achieve the object, the present invention is a high-frequency module having a module main body having a cavity and an L-shaped coaxial connector attached to a connector mounting surface which is one surface of the cavity. The L-shaped coaxial connector is formed at the corner formed by the flange that contacts the connector mounting surface, the module internal interface that protrudes from the flange and is inserted into the cavity, the module external interface that is connected to the component, and the flange and the module internal interface. It has a key. The module body includes a connector mounting hole into which the module internal interface is inserted, and a key groove formed on the edge of the connector mounting hole and capable of fitting a key.

According to the present invention, there is an effect that a high frequency module provided with an L-shaped coaxial connector whose position and orientation are determined with high accuracy can be obtained.

Perspective view of the high frequency module according to the first embodiment of the present invention. Perspective view of the L-shaped coaxial connector included in the high frequency module according to the first embodiment. Enlarged view of the connector mounting surface of the module body of the high frequency module according to the first embodiment. Cross-sectional view of the connection portion between the module body of the high frequency module according to the first embodiment and the L-shaped coaxial connector. Enlarged cross-sectional view of the fitting portion of the key and keyway of the high-frequency module according to the first embodiment.

Hereinafter, the high frequency module according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment 1.
FIG. 1 is a perspective view of a high frequency module according to the first embodiment of the present invention. In the high frequency module 20, the L-shaped coaxial connector 2 is attached to the module body 1 provided with the cavity 1a.

FIG. 2 is a perspective view of an L-shaped coaxial connector included in the high frequency module according to the first embodiment. The L-shaped coaxial connector 2 is connected to a flange 3 that abuts on the connector mounting surface 1b of the module body 1, a module internal interface 5 that protrudes from the flange 3 and is inserted into the cavity 1a of the module body 1, and a component such as a distributor or a power supply. It has a module external interface 4 to be mounted. The terminal 5a of the module internal interface 5 and the terminal 4a of the module external interface 4 are electrically connected. A key 7 is formed at a corner formed by the module internal interface 5 and the flange 3. The flange 3 is formed with two bolt holes 6 which are through holes.

FIG. 3 is an enlarged view of the connector mounting surface of the module main body of the high frequency module according to the first embodiment. In the module main body 1, one surface of the cavity 1a forming the outer shell is the connector mounting surface 1b. A connector insertion hole 10 and a connector mounting screw hole 9 are formed on the connector mounting surface 1b. Two screw holes 9 for attaching the connector are formed, and the distance between them is the same as the distance between the bolt holes 6. A keyway 8 is formed on the edge of the connector insertion hole 10. The keyway 8 is sized to fit the key 7.

FIG. 4 is a cross-sectional view of a connection portion between the module main body of the high frequency module according to the first embodiment and the L-shaped coaxial connector. FIG. 5 is an enlarged cross-sectional view of the fitting portion of the key and the key groove of the high frequency module according to the first embodiment. In FIG. 5, the mounting direction of the L-shaped coaxial connector 2 is indicated by an arrow C. The end portion 7a of the key 7 in the connector mounting direction is not in contact with the side wall of the key groove 8. Therefore, the flange 3 is in surface contact with the connector mounting surface 1b. The surface contact between the flange 3 and the connector mounting surface 1b prevents the L-shaped coaxial connector 2 from rotating around the axis of the terminal 4a of the module external interface 4. Further, the key 7 is in contact with both side walls of the key groove 8 in the width direction. In the key 7, two or more points having different axial positions of the terminal 5a of the module internal interface 5 are in contact with the side wall of the key groove 8. For example, the key 7 comes into surface contact with the side wall of the key groove 8. Therefore, it is prevented that the L-shaped coaxial connector 2 rotates around the axis of the terminal 5a of the module internal interface 5. The direction of rotation of the terminal 5a of the module internal interface 5 around the axis is indicated by an arrow A in FIG. The direction of rotation of the terminal 4a of the module external interface 4 around the axis is indicated by an arrow B in FIG.

When an L-shaped coaxial connector that does not have a key 7 is attached to a module body that does not have a key groove 8, the flanges are screwed in two places, so it seems that the orientation of the L-shaped coaxial connector is uniquely determined. Rattling occurs due to the manufacturing tolerance between the bolt hole and the screw, and the L-shaped coaxial connector can be rotated around the axis of the module internal interface. Further, even if the design orientation is determined, the L-shaped coaxial connector can be attached to the module body in a 180-degree inverted orientation, so that the L-shaped coaxial connector is attached to the module body in the wrong orientation. There is a fear.

In the high frequency module 20 according to the first embodiment, since the orientation of the L-shaped coaxial connector 2 is determined by fitting the key 7 and the key groove 8, the L-shaped coaxial connector 2 has a higher accuracy than the manufacturing tolerance of the bolt hole 6 and the screw. The position and orientation of the can be determined. Therefore, a stack structure can be realized by directly connecting the coaxial connector provided by another component to the module external interface 4 without using a coaxial cable.

Further, even if the high frequency module 20 according to the first embodiment is attached to the module main body 1 in the direction in which the L-shaped coaxial connector 2 is inverted by 180 degrees, the key 7 interferes with the flange 3 and cannot be attached. Therefore, it is possible to prevent the occurrence of a mistake in mounting the L-shaped coaxial connector 2 in the wrong direction when assembling the high frequency module 20.

The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

1 Module body, 1a cavity, 1b connector mounting surface, 2L type coaxial connector, 3 flange, 4 module external interface, 4a, 5a terminal, 5 module internal interface, 6 bolt hole, 7 key, 7a end, 8 key groove , 9 Connector mounting screw holes, 10 Connector insertion holes, 20 High frequency module.

Claims (2)

A high-frequency module having a module body having a cavity and an L-shaped coaxial connector attached to a connector mounting surface which is one surface of the cavity.
The L-shaped coaxial connector includes a flange that abuts on the connector mounting surface, a module internal interface that protrudes from the flange and is inserted into the cavity, a module external interface that is connected to a component, and the flange and the module internal interface. Equipped with a key formed in the corner
The module main body is a high-frequency module including a connector mounting hole into which the module internal interface is inserted, and a key groove formed at an edge of the connector mounting hole and capable of fitting the key. The key according to claim 1, wherein the end portion of the L-shaped coaxial connector in the mounting direction does not contact the side wall of the key groove, and the flange is in surface contact with the connector mounting surface. High frequency module.

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