JP2000209013A - Mobile radio terminal and built-in antenna - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the degradation of characteristics caused by impact, etc., during use, to facilitate assembly and to obtain high characteristics by providing a connector for the high-frequency connection of a power feeding part, which is applied with energizing force from the inside of a main body to a separate unit by an energizing means and is provided in the main body, and the feeding point of an antenna. SOLUTION: This built-in antenna 2 is provided for the high frequency connection with a power feeding part 6 provided in a main body 1 with a connector 4 for applying energizing force B from the inside of the main body 1 through an energizing means 5 to a battery pack (separate unit) 8. Besides, an introducing means is provided for sliding the separate unit 8 almost orthogonally with the direction of the energizing force B of the energizing means 5 to the main body 1, and the built-in antenna 2 is provided in the separate unit 8 provided with a recessed part 8a to fit the tip of the connector 4 in the case of complete attachment to the main body 1. The connector 4 can be slid against the energizing force from the outside of the main body 1 and the outside of the separate unit 8 and the built-in antenna 2 is provided in the separate unit 8 freely attachable to and detachable from the main body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a mobile radio terminal having a built-in antenna or a plurality of antennas and a built-in antenna applied to such a mobile radio terminal.

[0002]

2. Description of the Related Art Mobile telephone terminals such as portable telephones have various appearances. In particular, the appearance is an important design factor in terms of design and convenience.
One of the factors that influence this external shape is an antenna. There is also an example in which an antenna is built in without providing an antenna protruding from the main body due to emphasis on design and convenience.
On the other hand, even in the case of having an antenna protruding from the main body, diversity transmission and reception are often performed in mobile communication, and there are many examples in which a built-in antenna is provided.

FIGS. 4 and 5 are side sectional views showing a method of forming a conventional built-in antenna. In the example shown in this figure, an antenna 102 formed in an inverted-F shape by sheet metal processing or the like is soldered to a feeding point 106 formed by a printed wiring pattern on a printed board 107, and 115 are available.

[0004]

However, in such a configuration, a problem that the solder 115 flows at the time of assembling and short-circuits the peripheral pattern is likely to occur. In this case, man-hours increase in the assembly process and the inspection process. Further, the processed portions of the antennas 102 and 102a are vulnerable to impacts such as dropping, and the shape changes during assembly or use, causing problems such as deterioration of antenna characteristics.

In addition to affecting the electrical components 116 and the like attached between the antennas 102 and 102a and the printed circuit board 107 (the surface of the antennas 102 and 102a on the printed circuit board 107),
02a itself is also affected.

The present invention has been made in view of such a background, and provides a mobile radio terminal and a built-in antenna which are easy to assemble and have high characteristics and which do not cause deterioration in characteristics due to an impact during use. It is intended to provide.

[0007]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, a built-in antenna is provided in a separate unit that is integrated with the main body by being attached to the main body. A connector for applying a biasing force to the separate unit from within the main body from the main body by a biasing means, and connecting a power supply unit provided in the main body and a power supply point of the built-in antenna at a high frequency. It is characterized by.
According to the second aspect of the present invention, in the mobile wireless terminal according to the first aspect, the main body slides the separate unit in a direction substantially orthogonal to a direction of the urging force by the urging means. Introducing means for enabling, said separate unit,
The connector is characterized in that it has a concave portion into which the pointed end of the connector fits when completely attached to the main body. According to the third aspect of the present invention, in the mobile wireless terminal according to the second aspect, the connector is drivable against the urging force from outside the main body and outside the separate unit. The separate unit is detachable from the main body. Further, in the invention according to claim 4, in the mobile radio terminal according to any one of claims 1 to 3, the built-in antenna is provided on an inner surface side of a separate unit not facing the main body. It is a planar antenna to be attached. According to a fifth aspect of the present invention, in the mobile wireless terminal according to any one of the first to fourth aspects, the separate unit has a built-in power supply for supplying power to the main body. It is a power supply unit. Further, according to the invention as set forth in claim 6, it is provided in a separate unit attached to the main body to form an integral appearance with the main body, and biasing means from inside the main body to the separate unit. A high-frequency connection is made with a power supply unit provided in the main body by a connector to which an urging force is applied. In the invention according to claim 7, in the built-in antenna according to claim 6, the main body can slide the separate unit in a direction substantially orthogonal to a direction of the urging force by the urging means. The connector is characterized in that it is provided in the separate unit having a concave portion into which the pointed end of the connector fits when completely attached to the main body. Also,
In the invention according to claim 8, in the built-in antenna according to claim 7, the connector is drivable against the urging force from outside the main body and from the outside of the separate unit. Characterized in that it is provided in the separate unit that is detachable with respect to. According to the ninth aspect of the present invention, in the built-in antenna according to any one of the sixth to eighth aspects, a planar antenna attached to an inner surface of a separate unit that does not face the main body is used. It is characterized by the following. According to a tenth aspect of the present invention, in the built-in antenna according to any one of the sixth to seventh aspects, the separate unit includes a power supply having a power supply for supplying power to the main body. It is a unit.

According to the present invention, in the separate unit attached to the main body and forming an integral appearance with the main body, the connector inside the main body is provided with a biasing force applied to the separate unit by the biasing means. And a built-in antenna connected to the power supply unit provided at a high frequency. In addition, the main body is provided with an introducing means for enabling the separate unit to slide in a direction substantially orthogonal to the direction of the urging force of the urging means, and the tip of the connector is fitted when completely attached to the main body. A built-in antenna is provided in a separate unit having a recess. The connector is drivable against the biasing force from outside the main body and from the outside of the separate unit, and a built-in antenna is provided in a separate unit that is detachable from the main body. In addition, a planar antenna attached to the inner surface of a separate unit that does not face the main body is used. Further, the separate unit is a power supply unit having a power supply for supplying power to the main body.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below. FIG. 1 is a side sectional view showing a configuration of a mobile telephone terminal according to one embodiment of the present invention, and FIG. 2 is a side view. As shown in FIG. 1, in the present embodiment, the printed circuit board 7 is a ground conductor plate, and the inverted F-shaped antenna 2 is provided outside the battery unit 3 in the battery pack 8. Guides 10 (see FIG. 2) that fit together are formed between the battery pack 8 and the main body 1, and the battery pack 8 is slidable in the direction of arrow A.

A power supply 6 of a printed pattern (not shown) formed on a printed circuit board 7 supports a conductor connection terminal 4 via a conductor spring 5, and the connection terminal 4 is formed by the elastic force of the spring 5. It is urged in the direction of arrow B.

A notch 8a is formed on the inner surface of the upper end of the battery pack 8 (the lower surface on the left end in FIG. 1), and the end 2a of the antenna 2 is exposed in this portion. Thereby, when the battery pack 8 is slid to the right in FIG. 1, a part of the connection terminal 4 is fitted into the notch 8 a of the battery pack 8, and the connection terminal 4 is electrically connected to the end 2 a of the antenna 2. The antenna 2 is connected to the power supply unit 6 by having a proper contact.

That is, in the present embodiment, the end portion 2 of the antenna 2 is brought into electrical contact with the feeding portion 6 via the spring 5.
The connection terminal 4 that is in electrical contact with a is pressed by the spring 5 in the direction of the end 2a of the antenna 2. Thus, the power supply unit 6 and the antenna 2 can be reliably brought into contact with each other without a step such as soldering.

FIG. 3 is a side sectional view showing a configuration of a mobile telephone terminal according to an application of the above embodiment. FIG. 3
In FIG. 7, the same reference numerals are given to the portions corresponding to the respective portions shown in FIG. 1 or FIG. 2, and the description thereof will be omitted.

In the example shown in FIG. 3, a strip antenna 12 formed on a flexible substrate or the like is provided in a battery pack 18 and used as a built-in antenna dedicated to reception.

In each of the above-described examples, the case where the antenna is built in the battery pack has been described. However, in the present invention, the portion where the built-in antenna is provided is not limited to the battery pack, but is covered with a material that transmits electromagnetic waves without any problem. Any part may be used.

Further, the present invention may be applied to a unit having only a built-in antenna. This makes it possible to simplify the process. Further, since this unit is detachable, the antenna can be replaced as appropriate according to the application and the use environment. The present invention is not limited to a mobile phone terminal such as a mobile phone or the like, and can be widely applied to various mobile radio terminals, portable receivers, and the like.

[0017]

As described above, according to the present invention, the urging force is applied to the separate unit from within the main body by the urging means in the separate unit attached to the main body and forming an integral appearance with the main body. Is provided with a built-in antenna which is connected to a power supply unit provided in the main body at a high frequency by a connector provided with the antenna. In addition, the main body is provided with an introducing means for enabling the separate unit to slide in a direction substantially orthogonal to the direction of the urging force of the urging means, and the tip of the connector is fitted when completely attached to the main body. A built-in antenna is provided in a separate unit having a recess. The connector is drivable against the biasing force from outside the main body and from the outside of the separate unit, and a built-in antenna is provided in a separate unit that is detachable from the main body. In addition, a planar antenna attached to the inner surface of a separate unit that does not face the main body is used. Also, since the separate unit is a power supply unit having a built-in power supply for supplying power to the main body, easy assembly and high characteristics are obtained,
An effect is obtained that a mobile wireless terminal and a built-in antenna that do not cause deterioration in characteristics due to impact during use or the like can be realized.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a configuration of a mobile telephone terminal according to one embodiment of the present invention.

FIG. 2 is a side view showing the configuration of the mobile telephone terminal according to one embodiment of the present invention.

FIG. 3 is a side sectional view showing a configuration of a mobile telephone terminal according to an application example of the present invention.

FIG. 4 is a side sectional view showing a method of forming a conventional built-in antenna.

FIG. 5 is a side sectional view showing a conventional method for forming a built-in antenna.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Antenna (Built-in antenna) 2a End part 3 Battery part (power supply) 4 Connection terminal (connector) 5 Spring (biasing means) 6 Power supply part 7 Printed circuit board 8, 18 Battery pack (separate unit) 8a Notch Part (recess) 10 Guide (introduction means) 12 Strip antenna (Built-in antenna) 102, 102a Antenna 106 Feeding point 107 Printed circuit board 115 Solder 116 Electrical component

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission Date] January 26, 2000 (2000.1.2
6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

The gist of the present invention described in claim 1 is that the antenna (2) is mounted in a separate unit (8, 18) which is attached to the main body (1) to form an integral appearance with the main body. , 12), a biasing force (B) is applied to the separate unit from within the main body by a biasing means (5), and a power supply unit (6) provided in the main body and power supply to the built-in antenna are provided. A connector (4) for high-frequency connection with a point, and the main body is provided with introducing means (10) for enabling the separate unit to slide in a direction (A) substantially orthogonal to the direction of the urging force of the urging means. ), The separate unit includes a recess (8a) into which the tip of the connector fits when completely attached to the main body, and the connector is provided outside the main body and the separate portion. Can be driven from outside the body unit against the biasing force There, the separate body unit consists in a mobile radio terminal, characterized in that it is detachable from the body. The gist of the present invention described in claim 2 is that the built-in antenna is a planar antenna attached to an inner surface of a separate unit that does not face the main body. . The gist of the present invention described in claim 3 is that the separate unit is a power supply unit incorporating a power supply (3) for supplying power to the main body. Exists in the terminal. The gist of the present invention according to claim 4 is provided in a separate unit attached to the main body and forming an integral appearance with the main body, and the urging force is applied to the separate unit from within the main body by the urging means. A high-frequency connection is made to a power supply unit provided in the main body by a connector provided, and the main body is provided with an introduction unit that enables the separate unit to slide in a direction substantially orthogonal to the direction of the urging force of the urging unit. And
The connector is provided in the separate unit having a concave portion into which the tip of the connector fits when completely attached to the main body, and the biasing force is applied to the connector from outside the main body and from the outside of the separate unit. And a built-in antenna that is provided in the separate unit detachably mounted on the main body. According to a fifth aspect of the present invention, there is provided a built-in antenna according to the fourth aspect, wherein a planar antenna attached to an inner surface of a separate unit that does not face the main body is used. According to a sixth aspect of the present invention, there is provided the built-in antenna according to the fourth or fifth aspect, wherein the separate unit is a power supply unit having a power supply for supplying power to the main body.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5J047 AA03 AA09 AA10 AB00 AB06 FD01 5K023 AA07 BB04 BB27 DD06 LL05 PP01 PP12 5K067 AA33 AA41 EE02 KK01 KK05 KK17

Claims (10)

[Claims] A built-in antenna (2, 12) is provided in a separate unit (8, 18) having an external appearance integrated with the main body by being attached to the main body (1). And a connector (4) for receiving a biasing force (B) by the biasing means (5) and connecting the power supply section (6) provided in the main body to a power supply point of the built-in antenna at a high frequency. A mobile wireless terminal characterized by the above-mentioned. 2. The introduction means (10) for allowing the separate unit to slide in a direction (A) substantially orthogonal to the direction of the urging force of the urging means.
2. The mobile radio according to claim 1, wherein the separate unit includes a recess (8 a) into which a tip of the connector fits when completely attached to the main body. 3. Terminal. 3. The connector is drivable against the urging force from outside the main body and outside the separate unit, and the separate unit is detachable from the main body. The mobile radio terminal according to claim 2. 4. The mobile radio terminal according to claim 1, wherein the built-in antenna is a planar antenna attached to an inner surface of a separate unit that does not face the main body. . 5. The power supply unit according to claim 1, wherein the separate unit is a power supply unit having a power supply (3) for supplying power to the main body.
The mobile radio terminal according to any one of the above. 6. A connector provided in a separate unit attached to the main body to form an integral appearance with the main body, wherein the connector is provided with a biasing force from the inside of the main body to the separate unit by a biasing means. A built-in antenna, which is connected to a power supply unit provided in the main body at a high frequency. 7. The main body includes an introduction unit that enables the separate unit to slide in a direction substantially perpendicular to a direction of the urging force of the urging unit, and the connection unit is completely connected to the main unit when the unit is completely attached to the main unit. 7. The built-in antenna according to claim 6, wherein the built-in antenna is provided in the separate unit having a concave portion into which the tip of the child fits. 8. The connector according to claim 1, wherein the connector is drivable against the urging force from the outside of the main body and the outside of the separate unit, and is provided in the separate unit detachable from the main body. The built-in antenna according to claim 7, characterized in that: 9. The built-in antenna according to claim 6, wherein a planar antenna attached to an inner surface of a separate unit that does not face the main body is used. 10. The built-in antenna according to claim 6, wherein the separate unit is a power supply unit having a built-in power supply for supplying power to the main body.