KR100632691B1 - Fixing apparatus for antenna testing of wireless telephone - Google Patents

Abstract

According to an aspect of the present invention, there is provided a fixing device for testing a wireless terminal antenna, comprising: a rotatable plate made of a disc-shaped member, the rotating plate having a rotation axis in the center of a bottom thereof; A plate motor for rotating the rotation shaft of the rotate plate according to the power applied; A connecting rod comprising at least two pillar members installed on the upper surface of the rotate plate; A base plate having a circular hole in a center thereof, the base plate being rotatably parallel to the rotate plate, and having a bottom surface coupled to an upper end of the connecting rod; A pair of guide rollers symmetrically installed on both upper surfaces of the base plate; A main ring formed of a ring member having a rectangular cross section, and having both lower ends rotatably supported in a direction perpendicular to the base plate by the guide rollers; A sub ring formed of a ring member having a diameter smaller than that of the main ring, the sub ring being connected to the inner circumferential surface of the main ring by a hinge, the sub ring being rotatable with both hinges as rotation axes; A plurality of sub-rods coupled to the bottom of the base plate; A roller support plate having a shaft hole in the center thereof and coupled to a lower end of the sub rod; A ring roller shaft rotatably installed on an upper surface of the rotation plate and penetrating the shaft hole; A main ring roller coupled to an upper end of the ring roller shaft and in contact with one surface of the main ring; A sub-ring roller installed on the roller support plate and contacting the other surface of the main ring to provide a pressing force between the main ring roller and the main ring; Provided is a wireless terminal antenna test fixture, characterized in that it comprises a roller motor for rotating the ring roller shaft in accordance with the power applied.

Wireless terminals, antennas, fixtures

Description

Fixing device for testing wireless terminal antenna {FIXING APPARATUS FOR ANTENNA TESTING OF WIRELESS TELEPHONE}             

1 is a perspective view showing a fixing device for testing a wireless terminal antenna according to an embodiment of the present invention.

Figure 2 is a perspective view showing a fixing device for testing a wireless terminal antenna according to another embodiment of the present invention.

Figure 3 is a perspective view showing a fixing device for testing a wireless terminal antenna according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

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100: rotate plate 110: plate motor

120: connecting rod 130: base plate

140: guide roller 150: main ring

160: sub ring 170: sub rod

180: roller support plate 190: ring roller shaft

200: main ring roller 210: sub ring roller

220: roller motor 300: jig frame
310: horizontal fixing jig 320: vertical fixing jig
330: reference hole 340: reference wire

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400: head jig 410: neck jig

420: side jig

The present invention relates to a test device for a wireless terminal, and more particularly, to a wireless terminal antenna test fixing device capable of measuring antenna characteristics of a wireless terminal by installing a wireless terminal or a phantom equipped with a wireless terminal.

In general, a wireless terminal such as a mobile phone must satisfy the convenience and safety of the user at the same time, it is required to have the best call quality and at the same time the minimum absorption of electromagnetic waves in the human body.

To this end, in developing a wireless terminal, it is essential to measure radio wave transmission / reception characteristics of a wireless terminal antenna, a radiation pattern and a radiation pattern according to a specific absorption rate (SAR). The test is performed by fixing the wireless terminal to be measured to a jig on one side of an anechoic chamber where a horn antenna is installed.

However, the jig used to fix the conventional wireless terminal is only to maintain the position manually set by the operator as it is, or can be moved only secondarily, not only accurate position fixing or fluctuation is difficult, but also depends on the experience and skill of the operator. According to the measurement results may vary, there was a problem that the reliability of the test is lowered.

In addition, to measure the influence of the radiation pattern according to the electromagnetic wave absorption rate, a Mannequin Head Phantom filled with a solution for the electromagnetic wave absorption test is used, and this head-shaped phantom is placed in the correct position separately from the jig for fixing the wireless terminal. There was a problem that a jig for fixing was required.

In order to solve the above problems, an object of the present invention is to install any wireless terminal or head-phase phantom to measure the antenna characteristics or electromagnetic wave-related characteristics in the correct position in three-dimensional, even when repeated measurements without the same error The present invention provides a fixing device for testing a wireless terminal antenna that can be fixed in a position and can be accurately changed to a desired position.

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In order to achieve the above object, the present invention is a fixing device for testing a wireless terminal antenna, consisting of a disk-shaped member, a rotating plate having a rotation axis in the center of the bottom; A plate motor for rotating the rotation shaft of the rotate plate according to the power applied; A connecting rod comprising at least two pillar members installed on the upper surface of the rotate plate; A base plate having a circular hole in a center thereof, the base plate being rotatably parallel to the rotate plate, and having a bottom surface coupled to an upper end of the connecting rod; A pair of guide rollers symmetrically installed on both upper surfaces of the base plate; A main ring formed of a ring member having a rectangular cross section, and having both lower ends rotatably supported in a direction perpendicular to the base plate by the guide rollers; A sub ring formed of a ring member having a diameter smaller than that of the main ring, the sub ring being connected to the inner circumferential surface of the main ring by a hinge, the sub ring being rotatable with both hinges as rotation axes; A plurality of sub-rods coupled to the bottom of the base plate; A roller support plate having a shaft hole in the center thereof and coupled to a lower end of the sub rod; A ring roller shaft rotatably installed on an upper surface of the rotation plate and penetrating the shaft hole; A main ring roller coupled to an upper end of the ring roller shaft and in contact with one surface of the main ring; A sub-ring roller installed on the roller support plate and contacting the other surface of the main ring to provide a pressing force between the main ring roller and the main ring; Provided is a wireless terminal antenna test fixture, characterized in that it comprises a roller motor for rotating the ring roller shaft in accordance with the power applied.
As described above, the fixing device for testing a wireless terminal antenna according to an embodiment of the present invention can quickly and accurately fix / change the wireless terminal or the head phantom to a desired position or posture, so that the work when measuring antenna characteristics or electromagnetic characteristics is performed. This not only makes the operation convenient but also improves the reliability of the measurement results.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a perspective view showing a fixing device for testing a wireless terminal antenna according to an embodiment of the present invention. As shown in FIG. 1, the fixing device 10 for testing a wireless terminal antenna according to an exemplary embodiment of the present invention includes a rotate plate 100, a plate motor 110, a connecting rod 120, and a base plate 130. , Guide roller 140, main ring 150, sub ring 160, sub rod 170, roller support plate 180, ring roller shaft 190, main ring roller 200, sub ring roller ( 210, a roller motor 220.
The rotate plate 100 is formed of a disc-shaped member, and has a rotating shaft 102 at the center of the bottom surface. The rotate plate 100 has a shaft hole 104 through which the ring roller shaft 190 penetrates at a position eccentrically from the center.

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The plate motor 110 is a driving means for rotating the rotate plate 100 in response to the application of power. The plate motor 110 is installed on the bottom of the rotate plate 100, that is, the lower end of the rotary shaft 102. The position of the rotate plate 100 is determined according to the rotation direction and the rotation angle of the plate motor 110. The plate motor 110 is installed in a separate motor housing 112.

The connecting rod 120 is at least two pillar members installed on the upper surface of the rotate plate 100. The connecting rod 120 has a lower end coupled to an upper surface of the rotate plate 100 and an upper end coupled to a bottom surface of the base plate 130 to mechanically connect the rotate plate 100 and the base plate 130.

The base plate (130) is made of a disc-shaped member having a circular hole in the center, the bottom surface is coupled to the upper end of the connecting rod 120.

The guide roller 140 is a pair of rotating members installed symmetrically on both sides of the upper surface of the base plate 130. The guide roller 140 supports both side ends of the main ring 150 to allow the main ring 150 to rotate on the same plane when the main ring 150 rotates.

The main ring 150 is formed of a ring member having a rectangular cross section, and both lower ends thereof are rotatably supported by the guide roller 140, respectively.

The sub ring 160 is formed of a ring member having a diameter smaller than that of the main ring 150, and both ends thereof are connected to the inner circumferential surface of the main ring 150 by a hinge shaft 162. The sub ring 160 is rotatable about the hinge shaft 162.

The sub rod 170 is a plurality of pillar members coupled to the bottom surface of the base plate 130. The sub rod 170 has an upper end coupled to a bottom surface of the base plate 130 and a lower end coupled to an upper surface of the roller support plate 180 to mechanically connect the base plate 130 and the roller support plate 180. Connect.

The roller support plate 180 has a shaft hole in the center thereof and is coupled to a lower end of the sub rod 170. The roller support plate 180 supports the main ring roller 200 and the sub ring roller 210.

The ring roller shaft 190 is rotatably installed on the upper surface of the rotate plate 100 and penetrates the shaft hole of the roller support plate 180. The ring roller shaft 190 is rotated by the roller motor 220.

The main ring roller 200 is a rotating member for rotating the main ring. The main ring roller 200 is coupled to an upper end of the ring roller shaft 190 to contact one surface of the main ring 150.

The sub ring roller 210 is installed on the roller support plate 180 and contacts the other surface of the main ring 150 to provide a pressing force between the main ring roller 200 and the main ring 150. .

The roller motor 220 rotates the ring roller shaft 190 according to the power applied.
In the fixing device 10 for testing a wireless terminal antenna according to an exemplary embodiment of the present invention, the base plate 130, the main ring 150, and the sub ring 160 are rotatable in different directions, respectively, and thus, rotation thereof. The measurement position of the wireless terminal can be selected by combining the direction and the degree.
Meanwhile, the rotate plate 100, the connecting rod 120, the base plate 130, the guide roller 140, the main ring 150, the sub ring 160, the sub rod 170, which are the components of the present invention, The roller support plate 180, the ring roller shaft 190, the main ring roller 200, and the sub ring roller 210 may be implemented with a dielectric (synthetic resin, etc.) so as not to affect the measurement result.

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2 is a perspective view showing a fixing device for testing a wireless terminal antenna according to another embodiment of the present invention. As shown in FIG. 2, the fixing device 20 for testing a wireless terminal antenna according to another exemplary embodiment of the present invention includes a jig frame 300 and a horizontal fixing jig 310 in addition to the components according to the exemplary embodiment of the present invention. ), The vertical fixing jig 320, the reference hole 330, and has a reference wire 340 further.

The jig frame 300 is a pair of skeletal members having a symmetrical shape for installing a wireless terminal. The jig frame 300 includes a horizontal frame 302 and a vertical frame extending at right angles from the horizontal frame 302. It consists of 304. The jig frame 300 has end portions of the horizontal frame 302 and the vertical frame 304 fixed to the inner circumferential surface of the sub ring 160, respectively.

The horizontal fix jig 310 is a pair of fixing members installed on the horizontal frame 302 of the jig frame 300 to fix the horizontal position of the wireless terminal. The horizontal fixing jig 310 presses and fixes both sides of the wireless terminal.

The vertical fix jig 320 is a fixing member provided between the vertical frames 304 of the jig frame 300 to fix the vertical position of the wireless terminal. The vertical fixing jig 320 fixes the lower end of the wireless terminal.

The standard holes 330 are three holes each formed symmetrically on both sides of the sub ring 160. The reference hole 330 is a hole for installing the reference wire 340.

The standard wire 340 is three string members connected between the reference holes 330 in mutually symmetrical positions. As the reference wire 340 is installed, the center point for installing the wireless terminal may be determined.

Meanwhile, the jig frame 300, the horizontal fixing jig 310, and the vertical fixing jig 320, which are components of another preferred embodiment of the present invention, may be implemented with a dielectric (synthetic resin, etc.) so as not to affect the measurement result. .

3 is a perspective view showing a fixing device for testing a wireless terminal antenna according to another preferred embodiment of the present invention. As shown in FIG. 3, the fixing device 30 for testing a wireless terminal antenna according to another exemplary embodiment of the present invention includes a head jig 400 and a neck jig 410 in addition to the components according to the exemplary embodiment of the present invention. ) And side jig 420.
The head jig 400 is a member that supports an upper end of the head phantom 500. The head jig 400 is coupled to an upper portion of the inner circumferential surface of the sub ring 160.

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The neck jig 410 is a member supporting the lower end of the two-phase phantom 500. The neck jig 410 is coupled to the lower inner circumferential surface of the sub ring 160.

The side jig 420 is a member for fixing the wireless terminal when the wireless terminal is installed in both ears of the head phantom 500. The side jig 420 is coupled to both side portions of the inner circumferential surface of the sub ring 160, respectively.

Meanwhile, the head jig 400, the neck jig 410, and the side jig 420, which are components of another preferred embodiment of the present invention, may be implemented with a dielectric (synthetic resin, etc.) so as not to affect the measurement result.

As described above, the fixing device for testing a wireless terminal antenna according to an embodiment of the present invention can quickly and accurately fix / change the wireless terminal or the head phantom to a desired position or posture, so that the work when measuring antenna characteristics or electromagnetic characteristics is performed. This not only makes the operation convenient but also improves the reliability of the measurement results.

Claims (4)

In the fixing device for testing a wireless terminal antenna, A rotate plate made of a disc-shaped member and having a rotation axis in the center of the bottom surface thereof; A plate motor for rotating the rotation shaft of the rotate plate according to the power applied; A connecting rod comprising at least two pillar members installed on the upper surface of the rotate plate; A base plate having a circular hole in a center thereof, the base plate being rotatably parallel to the rotate plate, and having a bottom surface coupled to an upper end of the connecting rod; A pair of guide rollers symmetrically installed on both upper surfaces of the base plate; A main ring formed of a ring member having a rectangular cross section, and having both lower ends rotatably supported in a direction perpendicular to the base plate by the guide roller; A sub ring formed of a ring member having a diameter smaller than that of the main ring, the sub ring being connected to the inner circumferential surface of the main ring by a hinge, the sub ring being rotatable with both hinges as rotation axes; A plurality of sub-rods coupled to the bottom of the base plate; A roller support plate having a shaft hole in the center thereof and coupled to a lower end of the sub rod; A ring roller shaft rotatably installed on an upper surface of the rotation plate and penetrating the shaft hole; A main ring roller coupled to an upper end of the ring roller shaft and in contact with one surface of the main ring; A sub-ring roller installed on the roller support plate and contacting the other surface of the main ring to provide a pressing force between the main ring roller and the main ring; And a roller motor for rotating the ring roller shaft upon application of power. The method of claim 1, A pair of jig frames each comprising a horizontal frame and a vertical frame extending at right angles from the horizontal frame, the ends of the horizontal frame and the vertical frame being fixed to an inner circumferential surface of the sub ring; Horizontal fixing jigs respectively installed on the horizontal frames of the jig frame; And a vertical fixing jig installed between the vertical frames of the jig frame. The method of claim 2, Three reference holes formed on both sides of the sub ring so as to be symmetrical with respect to the virtual center point of the sub ring; Fixing device for testing wireless terminal antennas, characterized in that it further has three reference wires connected between reference holes in mutually symmetrical positions. The method of claim 1, A head jig coupled to an upper portion of an inner circumferential surface of the sub ring to closely contact an upper portion of the head phantom; A neck jig coupled to a lower portion of an inner circumferential surface of the sub ring to closely contact a lower portion of the head phantom; And a pair of side jigs coupled to both sides of the inner circumferential surface of the sub ring.

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