JPH0983464A - Radio equipment test method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for direct wired connection for a radio equipment and a test equipment in the case of testing the radio equipment in a shield case. SOLUTION: A radio equipment 30 being a test object is contained in the inside of a shield case 12 and an antenna coupler 40 is mounted to an antenna 38 of the radio equipment 30. The antenna coupler 40 is a coaxial distributed constant line and the inner cylinder is capacitive-coupled with the antenna 38. Since the coupling capacity is almost unchanged even when the antenna 38 is located eccentrically, the coupling is made stable and highly reliable measurement and test are executed without direct wired connection of the radio equipment 30 and the test equipment 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio test method for testing a radio.

[0002]

2. Description of the Related Art PHS
(Personal Handy phone System) and other methods of measuring, evaluating, and testing (hereinafter collectively referred to as "test") the functions and performances of mobile wireless devices include a wireless device under test and a test device. Is a method of connecting to the wired connection. However, this method can be tested only by a radio equipped with a connector portion for wired connection to the test apparatus. Needless to say, many wireless devices are provided with such a connector portion, but the specifications differ for each manufacturer or model. Therefore, it was necessary to replace the cable for connection with the test apparatus according to the specifications of the connector portion of the wireless device to be tested.

An object of the present invention is to test a wireless device which does not have a connector portion that can be used for connection with a test device by eliminating the need for a direct wired connection between the wireless device under test and the test device. It is also possible to eliminate the need to replace the cable or the like according to the specifications of the connector portion. An object of the present invention is to make it possible to test a radio device in a state closer to the actual use state. An object of the present invention is to make it possible to test a radio device without being affected by a real wave (a radio wave used for actual communication in a system in which the radio device is used). An object of the present invention is to further automate the test and reduce the burden on the tester. An object of the present invention is to downsize the device configuration. It is an object of the present invention to allow multiple radios to be tested in parallel. An object of the present invention is to make it possible to execute a test by coping with a communication procedure of a wireless device which differs for each manufacturing company or each model.

[0004]

Means for Solving the Problems and Effects of the Invention In any of the first to fourth radio equipment test methods according to the present invention, the radio equipment provided with an integrated antenna is the subject of the test. In any of the first to fourth methods according to the present invention, the radio device under test and the antenna coupler are arranged inside the shield case, the antenna coupler and the antenna of the radio device under test are electromagnetically coupled, and this electromagnetic coupling is performed. It is characterized in that a radio frequency (RF) signal is transmitted between the outside of the shield case and the radio under test via the via. Therefore, at the time of testing the radio device under test, an RF signal is applied to the radio device under test from the outside of the shield case via the electromagnetic coupling described above, or the RF signal from the radio device under test is taken out of the shield case.
The connection method can be adopted. That is, it is not necessary to directly wire-connect a device outside the shield case (for example, a test device) and the radio device under test.

As a result, even a radio device which does not have a connector portion that can be used for connection with a device outside the shield case can be the subject of the test, so that a more versatile radio device test method can be realized. In addition, the device outside the shield case and the radio under test can be connected regardless of the specifications of the connector portion that can be used for connection with the device outside the shield case. At that time, it is not necessary to replace the cable or the like. As described above, according to the present invention, the workability at the time of carrying out the test is improved and the burden on the person in charge of the test is lightened.

In addition, the radio can be tested in a state closer to the actual use state in which communication is performed using the antenna, that is, in a state in which the actual use state can be more accurately reproduced.
It is possible to obtain more reliable and practical test results. During the test, the radio under test and the antenna coupler are electromagnetically shielded from the outside environment by the shield case, so the radio can be tested without being affected by the actual wave.

The radio device under test in the first method of the methods according to the present invention further comprises a keypad operable by fingers, and transmits or receives an RF signal according to the operation of the keypad. The radio device under test in the second method includes a speaker for outputting sound, and outputs sound according to the operating state or the signal transmission state from the speaker. The radio under test in the third method includes a microphone for acoustic input,
An RF signal corresponding to the input sound is transmitted. The radio under test in the fourth method includes a display member, and displays images such as characters and figures on the screen of the display member according to the operating state or the signal transmission state. The first to fourth methods according to the present invention are
All of them are characterized in that the radio device under test having such a configuration is tested inside the shield case and without opening and closing the shield case during the test.

Therefore, each of the first to fourth methods according to the present invention is characterized in that the manipulator member, the sound detecting member, the sound output member or the display detecting member is arranged inside the shield case. In the first method, a command to selectively operate the keypad of the radio device under test is given to the manipulator member from the outside of the shield case, and in the second method, it is detected by the sound detecting member. A signal indicating sound is supplied to the outside of the shield case, and in the third method, a command to output sound to the sound output member is given from the outside of the shield case,
In the above method, a signal indicating an image read by the display detection member is supplied to the outside of the shield case.

Therefore, according to the first to fourth methods of the present invention, even though the radio under test is confined in the shield case, the key of the radio under test is opened without opening / closing the shield case. The pad can be operated (first method), various functions related to the speaker or voice output of the radio under test can be tested (second method), and various functions related to the microphone or voice input of the radio under test can be tested. (Third method), it is possible to test various functions related to the display member and the display of the radio device under test (fourth method). As described above, in any of the methods of the present invention, it is not necessary to open and close the shield case, so the burden on the tester is light.

A fifth radio equipment test method according to the present invention is the first to fourth methods, wherein the antenna coupler capacitively couples with the antenna of the radio equipment under test when the antenna of the radio equipment under test is inserted therein. A first tubular conductor and a second tubular conductor coaxially arranged with respect to the first tubular conductor so as to form a distributed constant line.
And a tubular conductor. This stabilizes the coupling between the antenna coupler and the antenna.

A sixth radio equipment testing method according to the present invention is the first to fourth methods, further comprising a reflector for reflecting an electromagnetic wave belonging to a frequency band which is the same as or close to the RF signal,
It is arranged inside the shield case, and the reflector is rotated so that the reflection direction of the electromagnetic wave is sequentially changed. The rotation of the reflector makes it difficult for radio wave propagation inside the shield case to have regularity. Therefore, it is possible to eliminate or simplify a structure for suppressing interference of reflected waves inside the shield case, for example, a radio wave absorber. it can.

A seventh radio equipment test method according to the present invention is the first to fourth methods, wherein a plurality of radio equipment under test and antenna couplers are arranged inside a shield case, and an RF signal is transmitted from outside the shield case. In doing so, one of the radio devices under test is specified by the identification information included in the RF signal. According to this method, a plurality of radios can be tested in parallel while being distinguished from each other.

An eighth radio test method according to the present invention is the first to fourth methods, wherein the radio under test and the other radios are tested before placing the radio under test inside the shield case. By monitoring the wireless communication between the radio equipment under test by acquiring the radio communication procedure for the radio equipment under test, and transmitting the RF signal between the outside of the shield case and the radio equipment under test via the electromagnetic coupling. It is characterized by following the acquired wireless communication procedure. According to this method, it is possible to execute the test by coping with the communication procedure of the wireless device which is different for each manufacturing company or each model.

[0014]

Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of a radio equipment test system according to an embodiment of the present invention. This system has a configuration in which the test apparatus 10 and the shield case 12 are connected via two cables 14 and 16. The cable 14 is a cable for transmitting the RF signal output from the test apparatus 10 side to the shield case 12 side and transmitting the RF signal output from the shield case 12 side to the test apparatus 10 side. Cable 1
Reference numeral 6 denotes a cable for transmitting various detection signals to be described later from the shield case 12 side to the test apparatus 10 side, and a control signal to be described later to the test apparatus 10 side to the shield case 12 side. 3 provided in the test apparatus 10
Of these connectors, the connector 18 is a connector for connecting the cable 14, the connector 20 is a connector for connecting the cable 16, and the connector 22 is a connector for connecting the handset 24. Of the two connectors provided on the shield case 12, the connector 26 is for connecting to the cable 14, and the connector 28 is for the cable 16.
It is a connector for connection with.

The shield case 12 is a case for electromagnetically shielding the inside from the outside, and has a box shape with a lid (not shown). In testing the wireless device, the wireless device under test (wireless device under test) 30 is housed inside the shield case 12 so that the tested wireless device 30 receives radiation such as a real wave and Radiation from the test radio 30 is prevented from being transmitted to the outside. Inside the shield case 12, a diffuse reflection rotor 36 having a reflection plate 32 and driven by a motor 34,
As shown in FIG. 2, a plurality of them are arranged. Reflector 3
Reference numeral 2 is a disk that reflects radio waves of frequencies belonging to the frequency band used by the radio device under test 30 or a band in the vicinity thereof, and is made of, for example, metal. However, the present invention is
The shape and material are not limited.

The purpose of providing the reflector 32 is to reflect the radiation from the coupling portion between the antenna 38 of the radio under test 30 and the antenna coupler 40, which will be described later, so that the radio wave propagation state inside the shield case 12 does not have regularity. To disturb the electromagnetic field. Therefore, the reflection plate 32 is attached so as to be inclined with respect to the axis of the motor 34 as shown in FIG. That is, as the shaft of the motor 34 rotates along the φ direction, the attitude of the reflection plate 32, that is, the reflection direction changes. The diffuse reflection rotor 36 having such a function is provided on the inner wall surface of the shield case 12 (including the inner side surface and the back surface of the lid).
By providing a plurality of (preferably a large number of) in the shield case 12, a good test environment for electromagnetic radiation can be realized without widening the internal space of the shield case 12 and without disposing a radio wave absorber on the inner wall surface of the shield case 12. it can. This leads to a reduction in size and cost of the shield case 12. Further, by providing irregular reflection irregularities 42 made of metal or the like on the inner wall surface of the shield case 12, a more favorable test environment can be realized.
Although the motor 34 is arranged inside the shield case 12 in FIG. 1, this is for convenience of illustration, and whether the motor 34 is arranged inside the shield case 12 or outside the shield case 12. Can be designed as appropriate. Further, for convenience of explanation of the irregular reflection rotor 36 and the irregular reflection irregularities 42, FIG.
The antenna coupler 40 and other components are omitted.

When conducting the test, at least the radio device under test 30 is housed inside the shield case 12, the antenna coupler 40 is attached to the antenna 38 of the radio device under test 30, and then the lid of the shield case 12 is closed. Close. The antenna coupler 40 is connected to the connector 2 via the coaxial cable 48.
It is connected to 6 by wire. As described above, since the connector 26 is wire-connected to the connector 18 of the test apparatus 10 via the cable 14, the test apparatus 10 and the antenna coupler 4 are connected.
The RF signal can be transmitted by wire between 0s. As shown in FIG. 4, the antenna coupler 40 has a configuration in which two conductor cylinders 44 and 46 are coaxially arranged. Of these conductor cylinders, the conductor cylinder 44 arranged inside
Is connected to the inner conductor of the coaxial cable 48, and the conductor cylinder 46 arranged outside is connected to the outer conductor. Reference numeral 50 in FIG. 4 denotes a hollow cylindrical dielectric, which determines the characteristic impedance of the distributed constant line composed of the conductor cylinders 44 and 46, and at the same time the conductor cylinder 44.
Keep the distance between 46 and 46. Further, the resistance R (more generally, the impedance Z) is a terminating resistance (termination impedance) of the distributed constant line composed of the conductor cylinders 44 and 46, and its value depends on the characteristic impedance and the electrical length of the distributed constant line. It is decided accordingly.

When using the antenna coupler 40, the antenna coupler 40 is fixed by a supporting member 51 having a recess as shown in FIG. 5, and the radio device under test 30 as shown in FIGS. 1 and 5. The antenna 38 is inserted into the hollow portion inside the conductor cylinder 44. Then, the antenna 38 is electromagnetically coupled to the conductor cylinder 44. Since the inductance of the antenna 38 can normally be ignored, this electromagnetic coupling is capacitive coupling via the distributed capacitances C1 to Cn as shown in FIG. On the other hand, as described above, the conductor cylinders 44 and 46 form a distributed constant line, one end of which is connected to the coaxial cable 48 at the other end. Therefore, the RF signal can be transmitted between the test apparatus 10 and the radio under test 30 via the coupling of the antenna coupler 40 and the antenna 38. In FIG. 6, the radio under test 3 is tested.
0 is represented by a symbol of an AC power source, but this is because the radio under test 30 can be grasped as an RF power source on the equivalent circuit. Further, the antenna coupler 40 in the present invention need not be limited to the circular coaxial line structure.

Inside the shield case 12,
As shown in FIG. 1, the manipulator 52 and the speaker 5
4, a microphone 56 and a display detector 58 are provided. Of these, the manipulator 52 is means for pressing a specific button such as HOOK in the keypad 60 of the radio device under test 30, and operates according to a command given from the test apparatus 10 via the cable 16 or the like. . However, the test device 10
Control means may be provided separately from the above. Manipulator 52
As shown in FIG. 7, it is composed of a number of button presses 62 corresponding to the number of buttons to be operated, and a drive unit 64 for driving the button presses 62 in response to a command from the test apparatus 10. The drive unit 64 drives the button press 62 by, for example, air pressure or hydraulic pressure. Button press 6
2, can be driven along the extension direction L and the migratory direction θ, as shown in FIG. Therefore, in this embodiment, the buttons on the keypad 60 can be selectively operated remotely.

The speaker 54 is, for example, the radio device under test 30.
It is used when conducting a test relating to voice input to the radio device under test 30, such as transmission of voice from. At this time, the speaker 54 is fixed to the radio device under test 30 so as to face the microphone 66 of the radio device under test 30, that is, the microphone 66 can pick up the audio output of the speaker 54. The speaker 54 receives a signal from the test apparatus 10 via the cable 16 (may be another apparatus), and makes a sound. When the speaker 54 is sounded in a state where the call condition is established between the radio device under test 30 and the test apparatus 10, if the radio device under test 30 is normal, the sound emitted from the speaker 54 is a microphone. Radio device under test 30 via 66
Is input to the test apparatus 10 from the radio device under test 30 via the cable 14 and the like. Therefore, when the tester 10 measures the signal or the tester listens to the signal with the external handset 24, the voice is input to the radio device under test 30 including the audibility such as intelligibility. Tests can be conducted.

The microphone 56 is used when carrying out a test relating to audio output from the radio under test 30, such as reception of voice by the radio under test 30, for example. At this time, the microphone 56 is fixed to the wireless device under test 30 so as to face the speaker 68 of the wireless device under test 30, that is, the microphone 56 can pick up the audio output of the speaker 68. The display detector 58 is, for example, the radio device under test 3
It is used when performing a test relating to the display function of the radio device under test 30, such as displaying characters by 0. At this time, the display detector 58 faces the display unit 70 of the radio device under test 30, that is, the display detector 58 can read characters and the like from the screen of the display unit 70. Three
Fixed to 0. As an example of a test that can be performed by the microphone 56 and the display detector 58, the wireless device under test 3
A test of 0 electric bell function (so-called pager function: "pager" is a trademark) can be listed. That is, when the test device 10 calls the radio device under test 30 with an RF signal and sends the test message to the radio device under test 30, the speaker 68 sounds at a predetermined level or the display unit Whether the test message is correctly displayed on 70 is checked from the microphone 56 and the display detector 58 to the cable 1
The test apparatus 10 can make a determination based on the signal supplied via the signal generator 6 or the like.

The test apparatus 10 has a functional configuration as shown in FIG. First, the operation unit 72 is a member such as a keypad and a touch panel operated by a tester, and the tester operates the operation unit 72 to instruct the test apparatus 10 about the test contents and the telephone of the radio device under test 30. Instruct the number (when the radio under test is a mobile phone), the display method (range, etc.) of the test results, etc. The communication control unit 74 performs a test according to the operation of the operation unit 72, and the RF transmission / reception unit 76 executes an RF signal transmission / reception operation under the control of the communication control unit 74. For example, when the operation unit 72 issues an instruction to test the electric bell function of the radio device under test 30, the communication control unit 7
4 inputs the telephone number of the radio device under test 30 from the operation unit 72, calls the radio device under test 30 through the RF transmitting / receiving unit 76, and sends the test message generated by the test message generating unit 78. The RF transmitter / receiver 76 transmits the data. The measurement unit 80, based on the outputs of the microphone 56 and the display detector 58, the sounding state of the speaker 68 (for example, volume, frequency, etc.).
And the display condition of the display unit 70 (for example, correctness of display character string, correctness of display form such as inversion / flashing) are measured and determined, and the result is displayed on the screen of the display unit 82 according to the display method instructed from the operation unit 72. Display on top. Conventionally, in order to perform this type of test, an actual line must be used, and thus a line usage fee has been incurred, but in the present embodiment, such a burden does not occur.

In addition to the above, the test apparatus 10 can perform various kinds of tests including measurement of the electric field strength and frequency of the RF signal. For example, a special test control code is assigned in advance to a control code that is not used in the actually used RF line (of which, the control line), and the test control code generation unit 84 generates the test control code. , The communication control unit 74 according to the communication procedure according to the test control code.
The RF transmitter / receiver 76 may be operated.
At that time, if the identification code generator 86 generates an identification code for individually identifying the radio devices 30 under test, the identification code is supplied to the test control code generator 84 and incorporated into the test control code. For example, as shown in FIG. 9, a plurality of radio devices under test 30-1, 30-2, ... 30-N can be tested in parallel and for each radio device under test. Note that reference numerals 38-1, 38-2, ... 38 in FIG.
-N indicates the radio under test 30-1, 30-
2, ... 30-N antennas, reference numerals 40-1, 40
-2, ... 40-N is the antenna 38-
1, 38-2, ... 38-N are antenna couplers.

The communication control section 74 has a built-in memory (not shown) for storing a communication procedure. By appropriately rewriting the contents of this memory, it becomes possible to support various types of wireless devices. That is, even if the radios used in the same system have slightly different communication procedures depending on the manufacturer or model, the communication procedure used by the radio under test 30 on the actual line is acquired in advance. However, if the communication control section 74 is operated in accordance with the communication procedure on the memory by writing the data in the memory and performing the test, the same communication state as that of the real line can be repeated without using the real line. It can be reproduced repeatedly. As a result, the difference between the communication procedure for the test apparatus 10 and the communication procedure for the radio under test 30 can be eliminated, so that the difference between the two communication procedures can be prevented from affecting the test result. It becomes possible to correctly determine the location and cause of the failure.

As described above, according to the present embodiment, it is not necessary to directly wire-connect the test device 10 outside the shield case 12 and the radio device under test 30, so that the test device 10 can be connected. Radios that do not have a usable connector can also be included in the test, and radios that have such a connector can also be tested without cable replacement. As a result, a more versatile test method can be realized, the workability at the time of carrying out the test is improved, and the burden on the tester is reduced. further,
Since the test is performed using the antenna 38, it is possible to meet the demand for testing in a state closer to the actual use state, and it is possible to obtain more reliable and practical test results. Further, since the shield case 12 is used, the test can be performed without being affected by the actual wave. Further, since the manipulator 52, the speaker 54, the microphone 56 and the display detector 58 are used, the radio device under test 30 can be tested inside the shield case 12 and without opening and closing the shield case 12 during the test. The burden on the person in charge will be reduced.

In addition, the antenna 38 and the antenna coupler 4
The coupling of 0 is the coupling due to the distributed capacitance between the conductor cylinder 44 and the antenna 38, and the antenna 38 is
Even if it is decentered from the center line, the total coupling capacitance, that is, the coupling state hardly changes, so that the antenna coupler 40 and the antenna 38 can be stably coupled. Therefore, even if the antenna 38 or the antenna coupler 40 moves during the test, the test can be continued. However, the diameter of the conductor cylinder 44 must be sufficiently shorter than the wavelength of the radio wave. Furthermore, since the conductor cylinder 46 has an electromagnetic shielding function, this coupling is not easily affected by radio wave propagation in the surroundings.

Further, since the electromagnetic wave is diffusely reflected by the irregular reflection rotor 36 and the irregular reflection irregularities 42, the electromagnetic wave absorber can be eliminated and the shield case 12 can be made small. Further, by adopting the system configuration of FIG. 9 and using the identification code, it is possible to test a plurality of radio devices in parallel. Then, the wireless device under test 30 is attached to the shield case 12
Since the wireless communication between the wireless device under test 30 and another wireless device is monitored and the communication procedure is acquired prior to being placed inside, the communication procedure can be followed during the test, The test can be executed by coping with the communication procedure of the wireless device which is different for each manufacturing company or each model.

[0029]

[Addendum] The present invention can be understood as the following configurations.

(1) A radio under test, which has an integrated antenna and a keypad that can be operated by fingers, is used to transmit or receive an RF signal according to the operation of the keypad is housed in the interior thereof, and the interior thereof is A shield case that electromagnetically shields from the outside, an antenna coupler that is placed inside the shield case and electromagnetically couples with the antenna of the radio under test, a manipulator member that is placed inside the shield case, and the radio under test through the electromagnetic coupling. And a test device that gives an instruction to selectively operate the keypad of the radio device under test to the manipulator member while transmitting an RF signal between the radio devices under test. Moreover, the radio test system is characterized by testing without opening and closing the shield case during the test. According to this configuration, the same effect as that of the above-described first method can be obtained.

(2) A radio device under test, which is equipped with an integrated antenna and a speaker for outputting sound, and which outputs sound according to an operating state or a signal transmission state from the speaker, is housed in the inside thereof, and the inside thereof is A shield case that electromagnetically shields from the outside, an antenna coupler that is placed inside the shield case and electromagnetically couples with the antenna of the radio under test, an acoustic detection member that is placed inside the shield case, and the test under test through the electromagnetic coupling. A test device that receives an acoustic signal picked up by an acoustic detection member while transmitting an RF signal between wireless devices, and is used for testing inside the shield case and without opening and closing the shield case during the test. A radio test system characterized by: According to this configuration, the same operational effect as the above-described second method can be obtained.

(3) A radio device under test, which is equipped with an integrated antenna and a microphone for inputting sound and which transmits an RF signal corresponding to the input sound, is housed inside, and the inside is electromagnetically supplied from the outside. Between the shield case that shields the antenna, the antenna coupler that is placed inside the shield case and electromagnetically couples with the antenna of the radio under test, the acoustic output member that is placed inside the shield case, and the radio device under test through the electromagnetic coupling. And a test device that gives an instruction to output a sound to the sound output member while transmitting the RF signal with, and performs the test inside the shield case and without opening and closing the shield case during the test. Radio test system. According to this configuration, the same operational effect as the above-mentioned third method can be obtained.

(4) A radio under test, which is equipped with an integrated antenna and a display member and displays images such as characters and figures on the screen of the display member according to the operating state or the signal transmission state, is housed therein. A shield case for electromagnetically shielding the inside from the outside, and an antenna coupler arranged inside the shield case and electromagnetically coupled to the antenna of the radio under test,
A display detection member disposed inside the shield case, and a test device that receives a signal indicating an image read by the display detection member while transmitting an RF signal between the radio under test via the electromagnetic coupling. A radio equipment test system, which is characterized in that it is tested inside the shield case and without opening and closing the shield case during the test. According to this configuration,
The same effect as the above-mentioned fourth method can be obtained.

(5) In the radio equipment test system according to (1) to (4), the antenna coupler has a first cylindrical shape which capacitively couples with the antenna of the radio equipment under test when the antenna of the radio equipment under test is inserted therein. A radio equipment test system comprising: a conductor; and a second tubular conductor coaxially arranged with respect to the first tubular conductor so as to form a distributed constant line. According to this configuration, the same operational effect as the above-mentioned fifth method can be obtained.

(6) In the radio equipment test system according to (1) to (4), a reflector for reflecting an electromagnetic wave belonging to a frequency band that is the same as or close to the RF signal is arranged inside the shield case, and the electromagnetic wave is transmitted. A wireless device test system characterized in that a reflector is rotated so that the reflection direction of the reflector changes sequentially. According to this configuration, the same operational effect as that of the above-described sixth method can be obtained.

(7) In the radio equipment test system according to (1) to (4), when a plurality of radio equipment under test and a plurality of antenna couplers are arranged inside the shield case and an RF signal is transmitted from outside the shield case, A radio device test system characterized in that one of the radio devices under test is specified by the identification information included in the RF signal. According to this configuration, the same operational effect as the above-described seventh method can be obtained.

(8) In the radio equipment test system according to (1) to (4), the radio equipment under test and another radio equipment are placed before placing the radio equipment under test inside the shield case. By monitoring the communication, the wireless communication procedure for the radio under test is acquired, and when the RF signal is transmitted between the outside of the shield case and the radio under test via the electromagnetic coupling, the acquired radio communication is obtained. A radio test system characterized by following procedures. According to this configuration, the eighth
The same effects as those of the method can be obtained.

(9) The first tubular conductor capacitively coupled to the antenna of the radio under test when the antenna of the radio under test is inserted therein, and the first tubular conductor coaxial with the first tubular conductor so as to form a distributed constant line. And an arranged second tubular conductor. According to this configuration, an antenna coupler suitable for the above-mentioned fifth method can be obtained. According to this antenna coupler, the portability can be improved without impairing the coupling with the radio device under test.

(10) A reflector disposed inside the reflector for reflecting electromagnetic waves belonging to the same or close frequency band as the RF signal transmitted and received by the radio under test, and a reflector for sequentially changing the reflection direction of the electromagnetic waves. A shield case, comprising: a member for rotating the device, wherein the wireless device under test is housed therein. According to this configuration, the sixth
A shield case suitable for the above method can be obtained.

(11) When selecting one of a plurality of radio devices under test and transmitting an RF signal for a test, it is possible to specify any radio device under test by the identification information included in the RF signal. Characteristic test equipment. According to this configuration, a test apparatus suitable for the above-mentioned seventh method can be obtained.

(12) Prior to the test, the radio communication procedure between the radio under test and the other radio is monitored to acquire the radio communication procedure for the radio under test. Is a test apparatus characterized by transmitting an RF signal according to the acquired wireless communication procedure. According to this configuration, a test apparatus suitable for the above-mentioned eighth method can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a wireless device test system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an outline of a structure for irregularly reflecting radio waves in a shield case.

FIG. 3 is a view showing the structure of a diffuse reflection rotor,
(A) is a front view, (b) is a side view.

FIG. 4 is a perspective view showing an appearance of an antenna coupler.

FIG. 5 is a perspective view showing a method of fixing the antenna coupler.

FIG. 6 is a diagram representing an equivalent circuit representation of coupling between an antenna and an antenna coupler.

FIG. 7 is a diagram showing a schematic structure of a manipulator.

FIG. 8 is a diagram showing a movable direction of a button press.

FIG. 9 is a diagram showing a modified example of the system.

[Explanation of symbols]

10 test equipment, 12 shield case, 24 handset, 30, 30-1, 30-2, ... 30-N radio under test, 32 reflector, 34 motor, 36 rotor for irregular reflection, 38, 38-1, 38 -2 ... 38-N antenna, 40, 40-1, 40-2, ... 40-N antenna coupler, 42 irregular reflection irregularities, 44, 46 conductor cylinder, 52 manipulator, 54, 68 speaker, 5
6,66 microphone, 58 display detector, 60 keypad, 62 button press, 64 drive section, 70 display section,
72 operation section, 74 communication control section, 76 RF transmission / reception section, 80 measurement section, 82 display section, 84 test control code generation section, 86 identification code generation section.

Claims (8)

[Claims] 1. A radio under test, an antenna coupler and a manipulator member are arranged inside a shield case, the antenna coupler and the antenna of the radio under test are electromagnetically coupled, and the outside of the shield case and the radio under test are electromagnetically coupled to each other. It can be operated with an integrated antenna and fingers by transmitting a radio frequency signal between devices and giving a command from the outside of the shield case to the manipulator member to selectively operate the keypad of the device under test. A radio device under test that has a keypad and transmits or receives a radio frequency signal according to the operation of the keypad, inside the shield case and without opening and closing the shield case during the test. Test method. 2. The radio device under test, the antenna coupler and the acoustic detecting member are arranged inside the shield case, the antenna coupler and the antenna of the radio device under test are electromagnetically coupled, and the outside of the shield case and the device under test are electromagnetically coupled. A radio frequency signal is transmitted between the radios, while a signal indicating the sound picked up by the sound detection member is supplied to the outside of the shield case, so that an integrated antenna and a speaker for sound output are provided. Alternatively, a method of testing a radio device, characterized in that a radio device under test, which outputs sound according to a signal transmission state from a speaker, is tested inside the shield case and without opening / closing the shield case during the test. 3. The radio device under test, the antenna coupler and the acoustic output member are arranged inside the shield case, the antenna coupler and the antenna of the radio device under test are electromagnetically coupled, and the outside of the shield case and the device under test are electromagnetically coupled. While transmitting a radio frequency signal between the radios, by issuing a command from the outside of the shield case to the sound output member to output sound, an integrated antenna and a microphone for sound input were provided. A method for testing a radio device, which comprises testing a radio device under test that transmits a radio frequency signal according to sound inside the shield case and without opening and closing the shield case during the test. 4. The radio device under test, the antenna coupler and the display detection member are disposed inside the shield case, the antenna coupler and the antenna of the radio device under test are electromagnetically coupled, and the outside of the shield case and the device under test are electromagnetically coupled. While transmitting a radio frequency signal between radios, by supplying the signal showing the image read by the display detection member to the outside of the shield case, it is equipped with an integrated antenna and display member and is in an operating state or a signal transmission state. A test method for a radio device, characterized in that a radio device under test that displays images such as characters and figures on the screen of a display member is tested inside the shield case and without opening and closing the shield case during the test. 5. The wireless device testing method according to claim 1, wherein the antenna coupler has a first cylindrical conductor capacitively coupled to the antenna of the wireless device under test when the antenna of the wireless device under test is inserted therein. And a second tubular conductor coaxially arranged with respect to the first tubular conductor so as to form a distributed constant line. 6. The method of testing a radio device according to claim 1, wherein a reflection plate that reflects electromagnetic waves belonging to a frequency band that is the same as or close to the radio frequency signal is provided inside a shield case, and the reflection of the electromagnetic waves is performed. A method for testing a radio device, which comprises rotating a reflector so that the direction of the radio wave changes sequentially. 7. The radio device testing method according to claim 1, wherein a plurality of sets of radio devices under test and antenna couplers are arranged inside a shield case, and a radio frequency signal is transmitted from outside the shield case.
A radio device test method characterized in that one of the radio devices under test is specified by the identification information included in the radio frequency signal. 8. The wireless device testing method according to claim 1, wherein the wireless communication between the wireless device under test and another wireless device is monitored prior to disposing the wireless device under test inside the shield case. In this way, the wireless communication procedure for the radio under test is acquired, and when transmitting a radio frequency signal between the outside of the shield case and the radio under test via the electromagnetic coupling, follow the acquired radio communication procedure. A radio test method characterized by the above.