KR100796625B1 - Antenna chamber of hemi-sphere - Google Patents

Antenna chamber of hemi-sphere Download PDF

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Publication number
KR100796625B1
KR100796625B1 KR1020070000878A KR20070000878A KR100796625B1 KR 100796625 B1 KR100796625 B1 KR 100796625B1 KR 1020070000878 A KR1020070000878 A KR 1020070000878A KR 20070000878 A KR20070000878 A KR 20070000878A KR 100796625 B1 KR100796625 B1 KR 100796625B1
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KR
South Korea
Prior art keywords
hemispherical
main body
antenna
transmission antennas
cradle
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KR1020070000878A
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Korean (ko)
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박찬호
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(주)케이티엠테크놀로지
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use

Abstract

A hemispherical antenna chamber is provided to install plural transmission antennas on a hemispherical surface and to perform various measurement operations according to measurement angles caused by conversion of transmission antennas. A hemispherical antenna chamber comprises a hemispherical main body(10), plural transmission antennas(20), a cradle(30), and an electromagnetic wave absorption material(40). The hemispherical main body(10) has a hollow shape and consists of a hemispherical surface and a floor. The plural transmission antennas(20), installed equidistantly along a circumference of the hemispherical surface, transmit electronic waves. The cradle(30), formed on the floor, cradles a portable phone which receives the electronic waves from the transmission antennas(20) while rotating the portable phones. The electromagnetic wave absorption material(40), attached to the hemispherical surface and the floor, absorbs the electromagnetic waves for preventing the electromagnetic waves, discharged from an internal part, from being reflected.

Description

반구형 안테나 챔버{ANTENNA CHAMBER OF HEMI-SPHERE}Hemispherical antenna chamber {ANTENNA CHAMBER OF HEMI-SPHERE}

도 1은 종래 기술에 따른 육면체 안테나 챔버를 도시한 도면이다.1 is a view showing a hexahedral antenna chamber according to the prior art.

도 2는 본 발명에 따른 반구형 안테나 챔버를 도시한 도면이다.2 is a view showing a hemispherical antenna chamber according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10: 본체 12: 반구면10: main body 12: hemisphere

14: 바닥면 20: 송신안테나14: bottom 20: transmitting antenna

30: 거치대 40: 전자파흡수재30: holder 40: electromagnetic wave absorber

50: 하우징 60: 제어부50: housing 60: control unit

70: 회전축70: axis of rotation

본 발명은 안테나 챔버에 관한 것으로, 보다 상세하게는 휴대폰의 전파수신 성능을 신속하고 정확하게 측정할 수 있는 반구형 안테나 챔버에 관한 것이다.The present invention relates to an antenna chamber, and more particularly, to a hemispherical antenna chamber that can quickly and accurately measure the radio wave reception performance of a mobile phone.

일반적으로 휴대폰의 수신성능측정을 하기 위해서 안테나 챔버를 이용하여 휴대폰의 성능을 시험한다. 이러한 안테나 챔버는 에너지를 가진 전자파가 챔버 표면으로부터 반사되거나 반사된 전자기 에너지를 감쇄, 조절하여 무시할 정도의 에너지 상태가 되도록 만들어 주는 차폐시설로 외부에서 정상적으로 마주치는 무반사 환경조건을 모의해 주는 시설을 말한다. 즉, 실제의 전파를 방사하고 그 결과를 분석하기 위해서 주변의 소음을 차폐한 전자파 시험실이라고 한다.In general, the performance of the mobile phone is tested by using the antenna chamber to measure the reception performance of the mobile phone. The antenna chamber is a shielding facility that makes energy electromagnetic waves reflected or reflected from the surface of the chamber attenuate and adjust to an negligible energy state. It is a facility that simulates the non-reflective environmental conditions normally encountered from the outside. . In other words, it is called an electromagnetic test room that shields surrounding noise in order to emit actual radio waves and analyze the results.

도 1은 종래 기술에 따른 육면체 안테나 챔버를 도시한 도면이다.1 is a view showing a hexahedral antenna chamber according to the prior art.

도 1을 참조하면, 상기 챔버(100)는 육면체의 본체(110)와, 상기 본체(110) 내부에 부착되는 전자파흡수재(120)와, 상기 본체 (110)내부에 설치되며 전파를 송신하는 송신안테나(130)와, 상기 송신안테나(130)의 전파를 수신하여 휴대폰의 성능을 측정하기 위해서 휴대폰을 거치하는 스탠드(140)를 포함하여 구성된다. Referring to FIG. 1, the chamber 100 includes a main body 110 of a hexahedron, an electromagnetic wave absorber 120 attached to the inside of the main body 110, and a transmission installed in the main body 110 to transmit radio waves. It comprises an antenna 130, a stand 140 for mounting the mobile phone to measure the performance of the mobile phone to receive the radio wave of the transmission antenna 130.

그리고, 상기 챔버(100)는 공간으로 전파되는 모든 전자파 에너지를 차단할 목적으로 설치되고, 내부에서 방출되는 전자파가 반사되지 않도록 하며, 전계의 변동이 일정한 범위 내로 안정되게 한다. 그리고 내부 전자파 반사를 줄이기 위해서 바닥, 천장, 벽면에 전자파흡수재(120)를 부착한다.In addition, the chamber 100 is installed for the purpose of blocking all electromagnetic energy propagated into the space, so that the electromagnetic waves emitted from the inside are not reflected, and the variation of the electric field is stabilized within a certain range. In addition, the electromagnetic wave absorbing material 120 is attached to the floor, the ceiling, and the wall to reduce the internal electromagnetic wave reflection.

이처럼, 전파를 방사하는 장치를 측정하기 위한 공간으로 벽면에 전자파흡수재(120)를 부착하여 내부에서 방출한 전파가 반사되지 않도록 하는 방을 무반사 챔버라고 말하기도 한다.As such, the room for measuring the device for emitting radio waves may be referred to as an anti-reflective chamber by attaching the electromagnetic wave absorber 120 to the wall so that the radio waves emitted from the inside may not be reflected.

하지만, 종래의 챔버(100)는 그 크기가 대형으로 설계 제작되어, 설치에 따 른 공간을 확보해야 하는 문제점이 있으며, 시험측정을 하는데에도 오랜 시간이 걸리는 문제점이 있다.However, the conventional chamber 100 is designed and manufactured in a large size, and there is a problem of securing a space according to installation, and there is a problem in that it takes a long time to perform a test measurement.

상기와 같은 종래기술의 문제점을 해결하고자, 본 발명의 목적은 본체의 형상을 반구형으로 제작하고 크기를 소형화하여 전자파흡수량을 줄이고 공간확보에 따른 어려움을 해결할 수 있는 반구형 안테나 챔버를 제공하도록 하는 데 있다.In order to solve the problems of the prior art as described above, an object of the present invention is to provide a hemispherical antenna chamber that can reduce the amount of electromagnetic absorption and solve the difficulty of securing the space by making the shape of the main body in a hemispherical shape and miniaturized size. .

또한, 본 발명의 목적은 본체의 반구면에 다수개의 송신안테나를 설치하여 송신안테나의 전환으로 측정각도에 따라 다양하게 측정할 수 있는 반구형 안테나 챔버를 제공하도록 하는 데 있다.In addition, an object of the present invention is to provide a hemispherical antenna chamber that can be variously measured according to the measurement angle by switching the transmission antenna by installing a plurality of transmission antennas on the hemispherical surface of the main body.

상기 목적을 달성하기 위하여 본 발명은 휴대폰 안테나 성능을 측정하는 안테나 챔버에 있어서, 내부가 중공으로 형성되어 반구면과 바닥면으로 이루어지는 반구형의 본체;상기 본체의 반구면에서 원주방향을 따라 일정 간격으로 배치되도록 설치되어 전파를 송신하는 다수개의 송신안테나; 상기 본체의 바닥면에는 상기 송신안테나의 전파를 수신하는 휴대폰을 거치하여 측정각도에 따라 회전시킬 수 있도록 형성되는 거치대; 및 상기 본체의 반구면과 바닥면에 부착되고, 내부에서 방출되는 전자파가 반사되지 않도록 전자파를 흡수하는 전자파흡수재; 을 포함하여 구성되고, 상기 휴대폰의 안테나 측정 결과를 컴퓨터로 전송시켜 상기 휴대폰의 수신 감도를 측정하는 것을 특징으로 하는 반구형 안테나 챔버를 제공한다.In order to achieve the above object, the present invention is an antenna chamber for measuring the performance of a mobile phone antenna, the interior of the hemispherical body is formed of a hollow hemisphere and the bottom surface; at a predetermined interval along the circumferential direction in the hemisphere of the main body A plurality of transmission antennas arranged to be arranged to transmit radio waves; A cradle formed on the bottom surface of the main body such that the mobile phone receives the radio wave of the transmitting antenna and rotates according to a measurement angle; And an electromagnetic wave absorber attached to the hemispherical surface and the bottom surface of the main body and absorbing electromagnetic waves so that electromagnetic waves emitted from the inside thereof are not reflected. It is configured to include, and provides a hemispherical antenna chamber, characterized in that for measuring the reception sensitivity of the mobile phone by transmitting the antenna measurement results of the mobile phone to a computer.

또한, 본 발명은 상기 송신안테나는 상기 본체의 반구면에 적어도 4개 이상이 설치되는 것을 특징으로 하는 반구형 안테나 챔버를 제공한다.In addition, the present invention provides a hemispherical antenna chamber, characterized in that at least four transmitting antennas are installed on the hemispherical surface of the main body.

또한, 본 발명의 상기 거치대의 하부에는, 상기 본체의 바닥 저면에 하우징이 설치되어 그 내부에 상기 거치대의 일측과 연결되는 회전축이 구비되고, 상기 하우징 외부로 상기 회전축을 회전시키기 위해 동력을 전달하는 제어부가 설치되어 상기 거치대가 회전되는 것을 특징으로 하는 반구형 안테나 챔버를 제공한다.In addition, the lower portion of the cradle of the present invention, the housing is installed on the bottom bottom of the main body is provided with a rotating shaft connected to one side of the cradle therein, and transmits power to rotate the rotating shaft to the outside of the housing The control unit is provided to provide a hemispherical antenna chamber, characterized in that the cradle is rotated.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 따른 반구형 안테나 챔버를 더욱 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in more detail a hemispherical antenna chamber according to a preferred embodiment of the present invention.

도 2는 본 발명에 따른 반구형 안테나 챔버를 도시한 도면이다.2 is a view showing a hemispherical antenna chamber according to the present invention.

도 2를 참조하면, 본 발명의 바람직한 실시예에 따른 반구형 안테나 챔버는 본체(10), 송신안테나(20), 거치대(30), 전자파흡수재(40)로 구성되어 있다.2, the hemispherical antenna chamber according to a preferred embodiment of the present invention is composed of a main body 10, a transmission antenna 20, a cradle 30, an electromagnetic wave absorber 40.

본체(10)는 내부가 중공으로 형성되어 전자파를 차폐하는 밀폐공간을 가지며, 반구면(12)과 바닥면(14)을 갖는 반구형으로 형성된다. The main body 10 is formed in a hemispherical shape having a hemispherical surface 12 and a bottom surface 14 having an enclosed space formed inside the hollow to shield the electromagnetic waves.

또한, 상기 본체(10)는 반구형으로 형성되기 때문에, 기존의 육면체 안테나 챔버의 크기보다 축소가 되므로 공간제약을 덜 받는다.In addition, since the main body 10 is formed in a hemispherical shape, the main body 10 is reduced in size than the size of a conventional hexahedral antenna chamber, thereby receiving less space.

송신안테나(20)는 상기 본체(10)의 반구면(12)의 원주방향을 따라 일정 간격 으로 다수개가 배치되도록 설치되어, 각각의 송신안테나(20)를 전환하여 전파를 송신하는 역할을 수행한다. The transmitting antennas 20 are installed so that a plurality of transmitting antennas 20 are arranged at regular intervals along the circumferential direction of the hemispherical surface 12 of the main body 10, and serves to transmit radio waves by switching each transmitting antenna 20. .

도 2에서 도시된 바와 같이 상기 송신안테나(20)의 배치는 일정한 각도를 유지하여 설치되도록 하는 게 바람직하며, 상기 송신안테나(20)는 신속하고 정확한 측정을 위해서 적어도 4개 이상 배치되도록 하는 게 바람직하다.As shown in FIG. 2, the arrangement of the transmitting antennas 20 is preferably maintained at a constant angle, and at least four transmitting antennas 20 are preferably arranged for quick and accurate measurement. Do.

거치대(30)는 상기 본체(10)의 바닥면(14)에 설치되고, 상기 송신안테나(20)의 전파를 수신하는 휴대폰을 거치하여 회전시킬 수 있도록 형성된다.Cradle 30 is installed on the bottom surface 14 of the main body 10, is formed to be rotated by mounting the mobile phone receiving the radio wave of the transmission antenna (20).

그리고, 거치대(30)를 회전시키기 위해 상기 거치대(30)의 하부에는 상기 본체(10)의 바닥 저면에 하우징(50)이 설치되어 그 내부에 상기 거치대(30)의 일측과 연결되는 회전축(70)이 구비되고, 상기 하우징(50) 외부로 상기 회전축(70)을 회전시키기 위해 동력을 전달하는 제어부(60)가 설치된다.In addition, a housing 50 is installed at the bottom of the bottom of the main body 10 to rotate the cradle 30, and a rotation shaft 70 connected to one side of the cradle 30 therein. ) Is provided, and a control unit 60 for transmitting power to rotate the rotating shaft 70 to the outside of the housing 50 is installed.

따라서, 상기 제어부(60)가 상기 회전축(70)을 제어하여, 회전축(70)이 회전하는 반경을 따라 상기 거치대(30)가 회전하게 된다.Accordingly, the controller 60 controls the rotation shaft 70 so that the holder 30 rotates along the radius of the rotation shaft 70.

즉, 상기 거치대(30)는 휴대폰을 거치하여 회전되도록 구성되어, 상기 본체(10)의 반구면(12)에 설치된 다수개의 송신안테나(20)로부터 수신 감도를 측정할 수 있기 때문에 보다 정확한 데이터를 추출할 수 있게 된다.That is, the holder 30 is configured to rotate by mounting the mobile phone, since the reception sensitivity can be measured from a plurality of transmission antennas 20 installed on the hemispherical surface 12 of the main body 10 so that more accurate data can be obtained. It can be extracted.

전자파흡수재(40)는 내부 전자파 반사를 줄이기 위해서 상기 본체(10)의 반구면(12)과 바닥면(14)에 부착되어 전자파를 흡수하는 기능을 한다.The electromagnetic wave absorber 40 is attached to the hemispherical surface 12 and the bottom surface 14 of the main body 10 in order to reduce internal electromagnetic wave reflection to function to absorb electromagnetic waves.

또한, 상기 전자파흡수재(40)는 상기 본체(10)의 반구면(12) 전체에 부착되지 않고, 반구면(12)에 설치된 송신안테나(20)의 주변에만 부착되도록 하는 것도 가능하다.In addition, the electromagnetic wave absorbing material 40 may not be attached to the entire hemispherical surface 12 of the main body 10, but may be attached only to the periphery of the transmission antenna 20 provided in the hemispherical surface 12.

상기와 같이 구성된 반구형 안테나 챔버는 휴대폰 안테나의 측정값을 컴퓨터로 전송시켜 휴대폰의 수신감도를 측정하게 된다.The hemispherical antenna chamber configured as described above transmits the measured value of the mobile phone antenna to the computer to measure the reception sensitivity of the mobile phone.

지금까지 기술한 바와 같이, 본 발명에 따른 반구형 안테나 챔버는 본체의 형상을 반구형으로 제작하고 크기를 소형화하여 전자파흡수량을 줄이고 공간확보에 따른 어려움을 해결할 수 있으며, 상기 본체의 반구면에 다수개의 송신안테나를 설치하여 송신안테나의 전환으로 측정각도에 따라 다양하게 측정할 수 있는 장점이 있다.As described so far, the hemispherical antenna chamber according to the present invention can manufacture the shape of the main body in a hemispherical shape and downsizing the size to reduce the amount of electromagnetic absorption and solve the difficulty of securing the space, a plurality of transmissions on the hemisphere of the main body By installing the antenna, there is an advantage that can be measured in various ways according to the measurement angle by switching the transmission antenna.

본 발명은 상기 실시예에서 상세히 설명되었지만, 본 발명의 기술사상 범위 내에서 다양한 변형 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 특허청구범위에 속함은 당연한 것이다.While the invention has been described in detail in the foregoing embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the spirit of the invention, and such modifications and variations belong to the appended claims.

상기에서 살펴본 바와 같이, 본 발명에 따른 반구형 안테나 챔버는 본체의 형상을 반구형으로 제작하고 크기를 소형화하여 전자파흡수량을 줄이고 공간확보에 따른 어려움을 해결할 수 있는 효과가 있다.As described above, the hemispherical antenna chamber according to the present invention has the effect of manufacturing the shape of the body in a hemispherical shape and miniaturizing the size to reduce the amount of electromagnetic wave absorption and solve the difficulty of securing space.

또한, 본 발명에 따른 반구형 안테나 챔버는 본체의 반구면에 다수개의 송신안테나를 설치하여 송신안테나의 전환으로 측정각도에 따라 다양하게 측정할 수 있 는 효과가 있다.In addition, the hemispherical antenna chamber according to the present invention has an effect that can be variously measured according to the measurement angle by switching a transmission antenna by installing a plurality of transmission antennas on the hemispherical surface of the main body.

Claims (3)

휴대폰 안테나 성능을 측정하는 안테나 챔버에 있어서,An antenna chamber for measuring cellular antenna performance, 내부가 중공으로 형성되어 반구면과 바닥면으로 이루어지는 반구형의 본체;A hemispherical body formed in a hollow and having a hemisphere and a bottom surface; 상기 본체의 반구면의 원주방향을 따라 일정 간격으로 배치되도록 설치되어 전파를 송신하는 다수개의 송신안테나; A plurality of transmission antennas installed to be arranged at regular intervals along the circumferential direction of the hemispherical surface of the main body to transmit radio waves; 상기 본체의 바닥면에는 상기 송신안테나의 전파를 수신하는 휴대폰을 거치하여 측정각도에 따라 회전시킬 수 있도록 형성되는 거치대; 및A cradle formed on the bottom surface of the main body such that the mobile phone receives the radio wave of the transmitting antenna and rotates according to a measurement angle; And 상기 본체의 반구면과 바닥면에 부착되고, 내부에서 방출되는 전자파가 반사되지 않도록 전자파를 흡수하는 전자파흡수재;An electromagnetic wave absorber attached to the hemispherical surface and the bottom surface of the main body and absorbing electromagnetic waves so that electromagnetic waves emitted from the inside thereof are not reflected; 을 포함하여 구성되고,It is configured to include, 상기 휴대폰의 안테나 측정 결과를 컴퓨터로 전송시켜 상기 휴대폰의 수신감도를 측정하는 것을 특징으로 하는 반구형 안테나 챔버. A hemispherical antenna chamber, characterized in that for measuring the reception sensitivity of the mobile phone by transmitting the antenna measurement result of the mobile phone to a computer. 제 1항에 있어서,The method of claim 1, 상기 송신안테나는 상기 본체의 반구면에 적어도 4개 이상이 설치되는 것을 특징으로 하는 반구형 안테나 챔버.At least four transmission antennas are provided on the hemispherical surface of the main body. 제 1항에 있어서,The method of claim 1, 상기 거치대의 하부에는,In the lower part of the holder, 상기 본체의 바닥 저면에 하우징이 설치되어 그 내부에 상기 거치대의 일측과 연결되는 회전축이 구비되고, 상기 하우징 외부로 상기 회전축을 회전시키기 위해 동력을 전달하는 제어부가 설치되어 상기 거치대가 회전되는 것을 특징으로 하는 반구형 안테나 챔버.The housing is installed on the bottom of the bottom of the main body is provided with a rotating shaft connected to one side of the cradle therein, the control unit for transmitting power to rotate the rotating shaft to the outside of the housing is installed is the cradle is rotated Hemispherical antenna chamber.
KR1020070000878A 2007-01-04 2007-01-04 Antenna chamber of hemi-sphere KR100796625B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009091087A1 (en) * 2008-01-14 2009-07-23 Ktm Technology Co., Ltd. Hemi-spherical type antenna chamber
WO2010040889A1 (en) * 2008-10-06 2010-04-15 Elektrobit System Test Oy Over-the-air test
CN103812585A (en) * 2012-11-13 2014-05-21 深圳市鼎立方无线技术有限公司 Darkroom
KR101467171B1 (en) * 2013-06-24 2014-12-01 주식회사 이레테크 Electromagnetic measurement system and signal processing apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0262970A (en) * 1988-08-29 1990-03-02 Nippon Telegr & Teleph Corp <Ntt> Holding device for antenna to be measured
KR20040055671A (en) * 2002-12-20 2004-06-26 재단법인 충남대학교 산학연교육연구재단 System and Method Measuring Radiation Characteristic of Antenna

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0262970A (en) * 1988-08-29 1990-03-02 Nippon Telegr & Teleph Corp <Ntt> Holding device for antenna to be measured
KR20040055671A (en) * 2002-12-20 2004-06-26 재단법인 충남대학교 산학연교육연구재단 System and Method Measuring Radiation Characteristic of Antenna

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009091087A1 (en) * 2008-01-14 2009-07-23 Ktm Technology Co., Ltd. Hemi-spherical type antenna chamber
WO2010040889A1 (en) * 2008-10-06 2010-04-15 Elektrobit System Test Oy Over-the-air test
US9786999B2 (en) 2008-10-06 2017-10-10 Keysight Technologies Singapore (Holdings) Pte. Ltd. Over-the-air test
US11152717B2 (en) 2008-10-06 2021-10-19 Keysight Technologies Singapore (Sales) Pte. Ltd. Over-the-air test
CN103812585A (en) * 2012-11-13 2014-05-21 深圳市鼎立方无线技术有限公司 Darkroom
KR101467171B1 (en) * 2013-06-24 2014-12-01 주식회사 이레테크 Electromagnetic measurement system and signal processing apparatus

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