KR20170016732A - Device for measuring micro noise - Google Patents

Device for measuring micro noise Download PDF

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Publication number
KR20170016732A
KR20170016732A KR1020150110198A KR20150110198A KR20170016732A KR 20170016732 A KR20170016732 A KR 20170016732A KR 1020150110198 A KR1020150110198 A KR 1020150110198A KR 20150110198 A KR20150110198 A KR 20150110198A KR 20170016732 A KR20170016732 A KR 20170016732A
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KR
South Korea
Prior art keywords
mobile terminal
unit
touch
conductive layer
signal
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KR1020150110198A
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Korean (ko)
Inventor
김인무
조영민
김기평
Original Assignee
엘지전자 주식회사
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Priority to KR1020150110198A priority Critical patent/KR20170016732A/en
Publication of KR20170016732A publication Critical patent/KR20170016732A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/26Measuring noise figure; Measuring signal-to-noise ratio
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0433Sockets for IC's or transistors
    • G01R1/0441Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/06Measuring leads; Measuring probes
    • G01R1/067Measuring probes
    • G01R1/06711Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
    • G01R1/06733Geometry aspects
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2801Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Telephone Function (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The present invention relates to a probe device for measuring micro noise generated on a PCB board of a portable terminal. The present invention comprises: a printed circuit board which includes first to fourth conductive layers and first to third dielectric layers disposed between the first to fourth conductive layers, respectively; a resonance unit which is formed on the second conductive layer and the third conductive layer of the printed circuit board, and filters a micron noise signal; and a converter unit which is integrally formed with the resonance unit; and a conversion unit which converts the two noise signals outputted from the resonance unit into one noise signal and outputs the same.

Description

{DEVICE FOR MEASURING MICRO NOISE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a micro noise measurement apparatus, and more particularly, to a micro noise measurement apparatus capable of detecting a noise source that affects reception sensitivity of a wireless signal.

A terminal can be divided into a mobile / portable terminal and a stationary terminal depending on whether the terminal is movable or not. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

Such a terminal has various functions, for example, a multimedia player having a complex function such as photographing or moving picture shooting, reproduction of music or video file, reception of game or broadcasting, . In order to implement complex functions, mobile terminals implemented in the form of multimedia devices have been applied to new attempts in terms of hardware and software, and various mobile phone accessories have been supported to implement convenient functions.

Meanwhile, recent mobile terminals have a plurality of antennas for receiving various radio signals such as a 3G / 4G signal, a digital broadcast signal, a Wi-Fi signal, a Bluetooth signal, an NFC signal, a GPS signal, These plurality of antennas are mounted on the main PCB substrate together with other electronic components.

In mobile phone manufacturing, the reception sensitivity of some radio signals is often reduced due to noise signals generated on the main PCB substrate. Accordingly, the developers use the noise measurement device to analyze the noise source of the main PCB substrate and remove the noise source from the main PCB substrate, thereby improving the reception sensitivity of the radio signal.

However, the conventional noise measuring apparatus has a problem that it can not measure a fine signal of -140 dBm or less due to the performance limit. That is, there is a problem that it is impossible to measure a fine noise signal affecting a radio signal (for example, a GPS signal) of -140 dBm or less among the noise signals generated on the main PCB substrate. Therefore, a noise measurement device for measuring such a fine noise signal is desperately required.

The present invention is directed to solving the above-mentioned problems and other problems. Another object of the present invention is to provide a fine noise measurement apparatus capable of accurately detecting a fine noise signal based on a resonator and a converter formed integrally with a PCB pattern structure.

According to an aspect of the present invention, there is provided a printed circuit board including first to fourth conductive layers and first to third dielectric layers respectively disposed between the first to fourth conductive layers, ; A resonance part formed on the second conductive layer and the third conductive layer of the printed circuit board and filtering the fine noise signal; And a converter unit formed integrally with the resonator unit, for converting two noise signals output from the resonator unit into a noise signal and outputting the noise signal.

The effect of the portable accessory device according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, by implementing the probe device including the resonator unit and the converter unit integrally formed through the PCB pattern structure, it is possible to measure the fine noise signal of -140 dBm or less, Can be identified.

Meanwhile, various other effects will be directly or implicitly disclosed in the detailed description according to the embodiment of the present invention to be described later.

FIG. 1A is a block diagram illustrating a mobile terminal according to the present invention; FIG.
FIG. 1B and FIG. 1C are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions; FIG.
2 is an overall configuration diagram of a noise measurement system according to an embodiment of the present invention;
3 is a schematic cross-sectional view of a probe apparatus according to an embodiment of the present invention;
FIGS. 4 and 5 are views schematically showing the structure of a probe apparatus according to an embodiment of the present invention; FIG.
6 is a diagram showing a signal transfer characteristic (S 21 parameter) in which a noise signal is transmitted from an input port to an output port of a resonance part or a probe device;
7 is a view schematically showing the structure of a metal pattern formed on the first conductive layer and the fourth conductive layer of the probe apparatus;
8 and 9 are views schematically showing the structure of a metal pattern formed on the second conductive layer and the third conductive layer of the probe apparatus;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, and a head mounted display (HMD). have.

However, it will be appreciated by those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital signage, and the like, will be.

1A to 1C are block diagrams for explaining a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual diagrams showing an example of a mobile terminal according to the present invention in different directions.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, and a power supply unit 190 ), And the like. The components shown in FIG. 1A are not essential for implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than the components listed above.

The wireless communication unit 110 may be connected between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and another mobile terminal 100 or between the mobile terminal 100 and the external server 100. [ Lt; RTI ID = 0.0 > wireless < / RTI > In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short distance communication module 114, and a location information module 115 .

The input unit 120 includes a camera 121 or an image input unit for inputting a video signal, a microphone 122 for inputting an audio signal, an audio input unit, a user input unit 123 for receiving information from a user A touch key, a mechanical key, and the like). The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.

The sensing unit 140 may include at least one sensor for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor, A microphone 226, a battery gauge, an environmental sensor (for example, a barometer, a hygrometer, a thermometer, a radiation detection sensor, A thermal sensor, a gas sensor, etc.), a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal disclosed in the present specification can combine and utilize information sensed by at least two of the sensors.

The output unit 150 includes at least one of a display unit 151, an acoustic output unit 152, a haptic tip module 153, and a light output unit 154 to generate an output related to visual, auditory, can do. The display unit 151 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and a user and may provide an output interface between the mobile terminal 100 and a user.

The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 is connected to a device having a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, And may include at least one of a port, an audio I / O port, a video I / O port, and an earphone port. In the mobile terminal 100, corresponding to the connection of the external device to the interface unit 160, it is possible to perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications running on the mobile terminal 100, data for operation of the mobile terminal 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. Also, at least a part of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions (e.g., telephone call receiving function, message receiving function, and calling function) of the mobile terminal 100. Meanwhile, the application program may be stored in the memory 170, installed on the mobile terminal 100, and may be operated by the control unit 180 to perform the operation (or function) of the mobile terminal.

In addition to the operations related to the application program, the control unit 180 typically controls the overall operation of the mobile terminal 100. The control unit 180 may process or process signals, data, information, and the like input or output through the above-mentioned components, or may drive an application program stored in the memory 170 to provide or process appropriate information or functions to the user.

In addition, the controller 180 may control at least some of the components illustrated in FIG. 1A in order to drive an application program stored in the memory 170. FIG. In addition, the controller 180 may operate at least two of the components included in the mobile terminal 100 in combination with each other for driving the application program.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power to the components included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be an internal battery or a replaceable battery.

At least some of the components may operate in cooperation with one another to implement a method of operation, control, or control of a mobile terminal according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170. [

Hereinafter, the various components of the mobile terminal 100 will be described in detail with reference to FIG. 1A.

First, referring to the wireless communication unit 110, the broadcast receiving module 111 of the wireless communication unit 110 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. Two or more broadcast receiving modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

The mobile communication module 112 may be a mobile communication module or a mobile communication module such as a mobile communication module or a mobile communication module that uses technology standards or a communication method (e.g., Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) And an external terminal, or a server on a mobile communication network established according to a long term evolution (e. G., Long Term Evolution-Advanced).

The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. The wireless Internet module 113 is configured to transmit and receive a wireless signal in a communication network according to wireless Internet technologies.

Wireless Internet technologies include, for example, wireless LAN (WLAN), wireless fidelity (Wi-Fi), wireless fidelity (Wi-Fi) Direct, DLNA (Digital Living Network Alliance), WiBro Interoperability for Microwave Access, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A) 113 transmit and receive data according to at least one wireless Internet technology, including Internet technologies not listed above.

The wireless Internet module 113 for performing a wireless Internet connection through the mobile communication network can be used for wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE or LTE- May be understood as a kind of the mobile communication module 112.

The short-range communication module 114 is for short-range communication, and includes Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB) (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology. The short-range communication module 114 is connected to the mobile terminal 100 and the wireless communication system through the wireless area networks, between the mobile terminal 100 and another mobile terminal 100, or between the mobile terminal 100 ) And the other mobile terminal 100 (or the external server). The short-range wireless communication network may be a short-range wireless personal area network.

Here, the other mobile terminal 100 may be a wearable device (e.g., a smartwatch, a smart glass, etc.) capable of interchanging data with the mobile terminal 100 according to the present invention (smart glass), HMD (head mounted display)). The short range communication module 114 may detect (or recognize) a wearable device capable of communicating with the mobile terminal 100 around the mobile terminal 100. [ If the detected wearable device is a device authenticated to communicate with the mobile terminal 100 according to the present invention, the control unit 180 may transmit at least a part of the data processed by the mobile terminal 100 to the short- 114 to the wearable device. Therefore, the user of the wearable device can use the data processed by the mobile terminal 100 through the wearable device. For example, according to this, when a telephone is received in the mobile terminal 100, the user performs a telephone conversation via the wearable device, or when a message is received in the mobile terminal 100, It is possible to check the message.

The position information module 115 is a module for obtaining the position (or current position) of the mobile terminal, and a representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal utilizes the GPS module, it can acquire the position of the mobile terminal by using a signal transmitted from the GPS satellite. As another example, when the mobile terminal utilizes the Wi-Fi module, it can acquire the position of the mobile terminal based on information of a wireless access point (AP) that transmits or receives the wireless signal with the Wi-Fi module. Optionally, the location information module 115 may perform any of the other functions of the wireless communication unit 110 to obtain data relating to the location of the mobile terminal, in addition or alternatively. The location information module 115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.

Next, the input unit 120 is for inputting image information (or signal), audio information (or signal), data, or information input from a user. For inputting image information, Or a plurality of cameras 121 may be provided. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. [ A plurality of cameras 121 provided in the mobile terminal 100 may be arranged to have a matrix structure and various angles or foci may be provided to the mobile terminal 100 through the camera 121 having the matrix structure A plurality of pieces of image information can be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to acquire a left image and a right image for realizing a stereoscopic image.

The microphone 122 processes the external acoustic signal into electrical voice data. The processed voice data can be utilized variously according to a function (or a running application program) being executed in the mobile terminal 100. Meanwhile, the microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 123 is for receiving information from a user and when the information is inputted through the user input unit 123, the control unit 180 can control the operation of the mobile terminal 100 to correspond to the input information . The user input unit 123 may include a mechanical input means (or a mechanical key such as a button located on the front, rear or side of the mobile terminal 100, a dome switch, a jog wheel, Jog switches, etc.) and touch-type input means. For example, the touch-type input means may comprise a virtual key, a soft key or a visual key displayed on the touch screen through software processing, The virtual key or the visual key can be displayed on the touch screen with various forms. For example, the virtual key or the visual key can be displayed on the touch screen, ), An icon, a video, or a combination thereof.

Meanwhile, the sensing unit 140 senses at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a corresponding sensing signal. The control unit 180 may control the driving or operation of the mobile terminal 100 or may perform data processing, function or operation related to the application program installed in the mobile terminal 100 based on the sensing signal. Representative sensors among various sensors that may be included in the sensing unit 140 will be described in more detail.

First, the proximity sensor 141 refers to a sensor that detects the presence of an object approaching a predetermined detection surface, or the presence of an object in the vicinity of the detection surface, without mechanical contact by using electromagnetic force or infrared rays. The proximity sensor 141 may be disposed in the inner area of the mobile terminal or in proximity to the touch screen, which is covered by the touch screen.

Examples of the proximity sensor 141 include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. In the case where the touch screen is electrostatic, the proximity sensor 141 can be configured to detect the proximity of the object with a change of the electric field along the proximity of the object having conductivity. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

On the other hand, for convenience of explanation, the act of recognizing that the object is located on the touch screen in proximity with no object touching the touch screen is referred to as "proximity touch & The act of actually touching an object on the screen is called a "contact touch. &Quot; The position at which the object is closely touched on the touch screen means a position where the object corresponds to the touch screen vertically when the object is touched. The proximity sensor 141 can detect a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, have. Meanwhile, the control unit 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern sensed through the proximity sensor 141 as described above, and further provides visual information corresponding to the processed data It can be output on the touch screen. Furthermore, the control unit 180 can control the mobile terminal 100 such that different operations or data (or information) are processed according to whether the touch to the same point on the touch screen is a proximity touch or a touch touch .

The touch sensor uses a touch (or touch input) applied to the touch screen (or the display unit 151) by using at least one of various touch methods such as a resistance film type, a capacitive type, an infrared type, an ultrasonic type, Detection.

For example, the touch sensor may be configured to convert a change in a pressure applied to a specific portion of the touch screen or a capacitance generated in a specific portion to an electrical input signal. The touch sensor may be configured to detect a position, an area, a pressure at the time of touch, a capacitance at the time of touch, and the like where a touch object touching the touch screen is touched on the touch sensor. Here, the touch object may be a finger, a touch pen, a stylus pen, a pointer, or the like as an object to which a touch is applied to the touch sensor.

Thus, when there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like. Here, the touch controller may be a separate component from the control unit 180, and may be the control unit 180 itself.

On the other hand, the control unit 180 may perform different controls or perform the same control according to the type of the touch object touching the touch screen (or a touch key provided on the touch screen). Depending on the kind of the touch target object, whether to perform different controls or to perform the same control may be determined according to the current operating state of the mobile terminal 100 or an application program being executed.

On the other hand, the touch sensors and the proximity sensors discussed above can be used independently or in combination to provide a short touch (touch), a long touch, a multi touch, a drag touch ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, and the like. Touch can be sensed.

The ultrasonic sensor can recognize the position information of the object to be sensed by using ultrasonic waves. Meanwhile, the controller 180 can calculate the position of the wave generating source through the information sensed by the optical sensor and the plurality of ultrasonic sensors. The position of the wave source can be calculated using the fact that the light is much faster than the ultrasonic wave, that is, the time when the light reaches the optical sensor is much faster than the time the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generating source can be calculated using the time difference with the time when the ultrasonic wave reaches the reference signal.

The camera 121 includes at least one of a camera sensor (for example, a CCD, a CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.

The camera 121 and the laser sensor may be combined with each other to sense a touch of the sensing object with respect to the three-dimensional stereoscopic image. The photosensor can be laminated to the display element, which is adapted to scan the movement of the object to be detected proximate to the touch screen. More specifically, the photosensor mounts photo diodes and TRs (Transistors) in a row / column and scans the contents loaded on the photosensor using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor performs coordinate calculation of the object to be sensed according to the amount of change of light, and position information of the object to be sensed can be obtained through the calculation.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

Also, the display unit 151 may be configured as a stereoscopic display unit for displaying a stereoscopic image.

In the stereoscopic display unit, a three-dimensional display system such as a stereoscopic system (glasses system), an autostereoscopic system (no-glasses system), and a projection system (holographic system) can be applied.

The sound output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 170 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output unit 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output unit 152 may include a receiver, a speaker, a buzzer, and the like.

The haptic module 153 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 153 may be vibration. The intensity and pattern of the vibration generated in the haptic module 153 can be controlled by the user's selection or the setting of the control unit. For example, the haptic module 153 may synthesize and output different vibrations or sequentially output the vibrations.

In addition to vibration, the haptic module 153 may be configured to perform various functions such as a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 153 can transmit the tactile effect through the direct contact, and the tactile effect can be felt by the user through the muscles of the finger or arm. The haptic module 153 may include two or more haptic modules 153 according to the configuration of the mobile terminal 100.

The light output unit 154 outputs a signal for notifying the occurrence of an event using the light of the light source of the mobile terminal 100. Examples of events that occur in the mobile terminal 100 may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.

The signal output from the light output unit 154 is implemented as the mobile terminal emits light of a single color or a plurality of colors to the front or rear surface. The signal output may be terminated by the mobile terminal detecting the event confirmation of the user.

The interface unit 160 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 160 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data in the mobile terminal 100 to an external device. For example, a port for connecting a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, an audio I / O port, a video I / O port, an earphone port, and the like may be included in the interface unit 160.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM) A universal subscriber identity module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the interface unit 160. [

The interface unit 160 may be a path through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, And various command signals may be transmitted to the mobile terminal 100. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The memory 170 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., phone book, message, still image, moving picture, etc.). The memory 170 may store data related to vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 170 may be a flash memory type, a hard disk type, a solid state disk type, an SDD type (Silicon Disk Drive type), a multimedia card micro type ), Card type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read memory, a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs the storage function of the memory 170 on the Internet.

Meanwhile, as described above, the control unit 180 controls the operations related to the application program and the general operation of the mobile terminal 100. [ For example, when the state of the mobile terminal meets a set condition, the control unit 180 can execute or release a lock state for restricting input of a user's control command to applications.

In addition, the control unit 180 performs control and processing related to voice communication, data communication, video call, or the like, or performs pattern recognition processing to recognize handwriting input or drawing input performed on the touch screen as characters and images, respectively . Further, the controller 180 may control any one or a plurality of the above-described components in order to implement various embodiments described below on the mobile terminal 100 according to the present invention.

The control unit 180 determines whether or not the earphone 200 is mounted according to a sensing signal input from the interface unit 160 and reads a signal input from the earphone 200 to perform a predetermined operation.

In addition, when the earphone 200 is mounted, the control unit 180 restricts the operation of the speaker and the microphone of the mobile terminal 100, and allows the audio signal to be input / output through the earphone 200. Then, the control unit 180 starts a call in accordance with the operation of the button unit provided in the earphone 200 or terminates the call in progress in the call mode.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components. The power supply unit 190 includes a battery, the battery may be an internal battery configured to be chargeable, and may be detachably coupled to the terminal body for charging or the like.

In addition, the power supply unit 190 may include a connection port, and the connection port may be configured as an example of an interface 160 through which an external charger for supplying power for charging the battery is electrically connected.

As another example, the power supply unit 190 may be configured to charge the battery in a wireless manner without using the connection port. In this case, the power supply unit 190 may use at least one of an inductive coupling method based on a magnetic induction phenomenon from an external wireless power transmission apparatus and a magnetic resonance coupling method based on an electromagnetic resonance phenomenon Power can be delivered.

In the following, various embodiments may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

Referring to FIGS. 1B and 1C, the disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto and can be applied to various structures such as a folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . A description of a particular type of mobile terminal, although relevant to a particular type of mobile terminal, is generally applicable to other types of mobile terminals.

Here, the terminal body can be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, and the like) that forms an appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

A display unit 151 is disposed on a front surface of the terminal body to output information. The window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [

In some cases, electronic components may also be mounted on the rear case 102. Electronic parts that can be mounted on the rear case 102 include detachable batteries, an identification module, a memory card, and the like. In this case, a rear cover 103 for covering the mounted electronic components can be detachably coupled to the rear case 102. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside.

As shown, when the rear cover 103 is coupled to the rear case 102, a side portion of the rear case 102 can be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the engagement. Meanwhile, the rear cover 103 may be provided with an opening for exposing the camera 121b and the sound output unit 152b to the outside.

These cases 101, 102, and 103 may be formed by injection molding of synthetic resin or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case provides the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, a unibody mobile terminal 100 in which synthetic resin or metal is connected from the side to the rear side can be realized.

Meanwhile, the mobile terminal 100 may include a waterproof unit (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, And a waterproof member for sealing the inside space of the oven.

The mobile terminal 100 is provided with a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, Cameras 121a and 121b, first and second operation units 123a and 123b, a microphone 122, an interface unit 160, and the like.

1B and 1C, a display unit 151, a first sound output unit 152a, a proximity sensor 141, an illuminance sensor 142, an optical output unit (not shown) A second operation unit 123b, a microphone 122 and an interface unit 160 are disposed on a side surface of the terminal body, And a mobile terminal 100 having a second sound output unit 152b and a second camera 121b disposed on a rear surface thereof.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed, or placed on different planes. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side surface of the terminal body rather than the rear surface of the terminal body.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, a 3D display, and an e-ink display.

In addition, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. In this case, the mobile terminal 100 may be provided with a plurality of display portions spaced apart from each other or disposed integrally with one another, or may be disposed on different surfaces, respectively.

The display unit 151 may include a touch sensor that senses a touch with respect to the display unit 151 so that a control command can be received by a touch method. When a touch is made to the display unit 151, the touch sensor senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like.

The touch sensor may be a film having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or may be a metal wire . Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.

In this way, the display unit 151 can form a touch screen together with the touch sensor. In this case, the touch screen can function as a user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be implemented as a loud speaker for outputting various alarm sounds or multimedia playback sounds. ). ≪ / RTI >

The window 151a of the display unit 151 may be provided with an acoustic hole for emitting the sound generated from the first acoustic output unit 152a. However, the present invention is not limited to this, and the sound may be configured to be emitted along an assembly gap (for example, a gap between the window 151a and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be simplified because the holes that are formed independently for the apparent acoustic output are hidden or hidden.

The optical output unit 154 is configured to output light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The control unit 180 may control the light output unit 154 to terminate the light output when the event confirmation of the user is detected.

The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in the photographing mode or the video communication mode. The processed image frame can be displayed on the display unit 151 and can be stored in the memory 170. [

The first and second operation units 123a and 123b may be collectively referred to as a manipulating portion as an example of a user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100 have. The first and second operation units 123a and 123b can be employed in any manner as long as the user is in a tactile manner such as touch, push, scroll, or the like. In addition, the first and second operation units 123a and 123b may be employed in a manner that the user operates the apparatus without touching the user through a proximity touch, a hovering touch, or the like.

In this figure, the first operation unit 123a is a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key or a combination of a touch key and a touch key.

The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives a command from the first or second sound output unit 152a or 152b The size of the sound, and the change of the display unit 151 to the touch recognition mode.

On the other hand, a rear input unit (not shown) may be provided on the rear surface of the terminal body as another example of the user input unit 123. The rear input unit is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, commands such as power on / off, start, end, scrolling, and the like, the size adjustment of the sound output from the first and second sound output units 152a and 152b, And the like can be inputted. The rear input unit may be implemented as a touch input, a push input, or a combination thereof.

The rear input unit may be disposed so as to overlap with the front display unit 151 in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body such that when the user holds the terminal body with one hand, the rear input unit can be easily operated using the index finger. However, the present invention is not limited thereto, and the position of the rear input unit may be changed.

When a rear input unit is provided on the rear surface of the terminal body, a new type of user interface using the rear input unit can be realized. When the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing the fingerprint of the user, and the controller 180 may use the fingerprint information sensed through the fingerprint recognition sensor as authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive the user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations to receive stereophonic sound.

The interface unit 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.

And a second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera can be named an 'array camera'. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121b.

And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode in a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be embedded in the terminal body or formed in the case. For example, an antenna constituting a part of the broadcast receiving module 111 (see FIG. 1A) may be configured to be able to be drawn out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner surface of the rear cover 103, or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or detachable from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. In addition, the battery 191 may be configured to be wirelessly chargeable through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

The rear cover 103 is configured to be coupled to the rear case 102 so as to cover the battery 191 to restrict the release of the battery 191 and to protect the battery 191 from external impact and foreign matter . When the battery 191 is detachably attached to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

The mobile terminal 100 may be provided with an accessory that protects the appearance or supports or expands the function of the mobile terminal 100. [ One example of such an accessory is a cover or pouch that covers or accommodates at least one side of the mobile terminal 100. [ The cover or pouch may be configured to interlock with the display unit 151 to expand the function of the mobile terminal 100. Another example of an accessory is a touch pen for supplementing or extending a touch input to the touch screen.

In the foregoing, the configuration of the mobile terminal 100 according to the present invention has been described with reference to FIGS. 1A to 1C. Hereinafter, a probe device capable of measuring a fine noise signal based on a resonator part and a converter part integrally formed through a PCB pattern structure according to an embodiment of the present invention will be described in detail.

2 is an overall configuration diagram of a noise measurement system according to an embodiment of the present invention.

2, the noise measurement system 200 includes a spectrum analyzer 230, a low-noise analyzer (LNA) 220, a probe device 230, and a coaxial cable 240 .

The probe device 210 measures a fine noise signal generated from a PCB substrate of various electronic apparatuses. Here, an example of the PCB substrate to be measured may be the cellular phone PCB 100, but is not limited thereto.

The probe apparatus 200 includes a resonator and a converter integrally formed through a PCB pattern structure.

The resonance unit serves to filter a fine noise signal corresponding to a frequency band of a specific radio signal (e.g., a GPS signal). At this time, the resonance unit operates as an LC filter whose resonance frequency is set to a frequency band to be filtered.

The converter unit converts the two noise signals filtered by the resonance unit into a single noise signal, and performs a function of impedance matching with the low noise amplifier 300.

The low noise amplifier 220 amplifies the fine noise signal filtered by the probe device 210. In the present embodiment, the low-noise amplifier 220 is configured to be independent from the spectrum analyzer 230. However, the low-noise amplifier 220 may be integrally formed with the spectrum analyzer 230, something to do.

The spectrum analyzer 230 outputs a frequency spectrum component of the fine noise signal amplified by the low noise amplifier 220 as a graph.

The coaxial cable 240 serves to connect between the probe device 210 and the low noise amplifier 220 and between the low noise amplifier 220 and the spectrum analyzer 230. At this time, the probe apparatus 210, the low noise amplifier 220, and the spectrum analyzer 230 may include a subminiature A (SMA) connector for connection with the coaxial cable 240, but the present invention is not limited thereto.

The noise measuring system 200 having the above-described structure measures and provides a fine noise signal of -140 dBm or less among various noise signals generated in the cellular phone PCB 100, thereby enabling developers to detect noise So that the reception sensitivity of the radio signal can be improved by accurately analyzing the source.

3 is a schematic cross-sectional view of a probe apparatus according to an embodiment of the present invention.

3, the probe device 300 includes a first through a fourth conductive layers 310-340 and a first through a fourth conductive layers 310-340 disposed between the first through fourth conductive layers 310-340, The first to third dielectric layers 350 to 370 are formed.

The first to third dielectric layers 350 to 370 serve as a mechanical element for binding and attaching at least one component mounted on the PCB assembly 300 and the conductive layer to form one module. Such a dielectric layer may be an insulating material such as an epoxy, a resin-based material, or the like. For example, the dielectric layer may be a prepreg material, and the prepreg material may be selected from the group consisting of FR-2 (phenolic cotton paper), FR-3 (cotton paper and epoxy), FR-4 glass and epoxy, FR-5 (woven glass and epoxy), FR-6 (matte glass and polyester), G-10 (Woven glass and epoxy), CEM-1 paper and epoxy, woven glass and epoxy (CEM-3), woven glass and epoxy (CEM-4), and woven glass and polyester (CEM-5).

The first and third dielectric layers 350 and 370 may be designed to have a thickness of about 200 microns and the second dielectric layer 360 may be designed to have a thickness of about 1065 microns thicker than the first and third dielectric layers 350 and 370 But it is not limited thereto.

Meanwhile, the first to fourth conductive layers 310 to 340 may be formed of a pre-designed metal pattern to measure a fine noise signal of -140 dBm or less among the noise signals generated in the cellular phone PCB substrate.

This conductive layer may be formed of copper (Cu), aluminum (Al), or an alloy thereof. In addition, the first through fourth conductive layers 310 through 340 may be designed to have a thickness of about 20 mu m, but the present invention is not limited thereto.

4 and 5 are views schematically showing the structure of a probe apparatus according to an embodiment of the present invention. For convenience of explanation, it is assumed in FIGS. 4 and 5 that all the dielectrics are processed transparently in order to more clearly show the metal pattern structure of the PCB assembly constituting the probe apparatus.

4 and 5, the probe apparatus 400 includes a resonator 410 for filtering a noise signal corresponding to a specific frequency band, and a noise detector 420 for separating the two noise signals output from the resonator 410 into one noise And a converter 420 for converting the signal into a signal. The resonator part 410 and the converter part 420 are formed of a metal pattern integrally formed with the second conductive layer 320 and the third conductive layer 330 of the PCB assembly.

More specifically, the resonator portion 410 is composed of a pair of loop patterns 411 and a parallel conductive plate 413. [ At this time, the pair of loop patterns 411 and the parallel conductive plate 413 are formed to be symmetrical to each other in the second conductive layer 320 and the third conductive layer 330.

Since the loop pattern 411 operates as an inductor and the parallel conductive plate 413 operates as a capacitor, the resonance unit 410 constitutes an LC equivalent circuit connected in series.

Accordingly, the resonator 410 may filter a fine noise signal corresponding to a frequency band of a specific radio signal (e.g., a GPS signal). That is, the resonator 410 may operate as an LC filter having a resonance frequency f 0 set to a frequency band to be filtered. At this time, the resonance frequency f 0 can be set by designing the size, thickness, width, width, separation distance, etc. of the loop pattern 411 and the parallel conductive plate 412.

6A is a diagram showing a signal transfer characteristic (S 21 parameter) in which a noise signal is transmitted from the input port 415 to the output port 417 of the resonator 410. As shown in FIG. 6A, the resonator 410 operates as a narrow band pass filter which passes only a fine noise signal in a frequency band near the resonance frequency (f 0 , 1530 MHz) .

The converter section 420 is composed of a pair of first and second transmission strips (not shown). Likewise, a pair of first and second transmission strips are formed in the second conductive layer 320 and the third conductive layer 330, respectively, of the PCB assembly.

One end of the second transmission strip formed on the second conductive layer 320 is connected to the output portion (i.e., the connector) of the probe device 400 and the other end of the second transmission strip formed on the third conductive layer 330 And one end is opened.

Accordingly, the converter 420 can convert the two noise signals output from the resonator 410 into one noise signal. In addition, the converter unit 420 may perform impedance matching with the low noise amplifier 220 connected through the connector.

The probe device 400 including the resonator unit 410 and the converter unit 420 integrally formed through the PCB pattern structure filters the fine noise signal generated from the cellular phone PCB substrate 430 and outputs the filtered signal to the low noise amplifier 220, respectively.

6B is a diagram showing a signal transfer characteristic (S 21 parameter) in which a noise signal is transferred from the input port 415 to the output port 419 of the probe apparatus 400. As shown in FIG. 6B, the probe apparatus 400 is a narrow band pass filter for passing only a fine noise signal in a frequency band near the final resonant frequency (f 0 ', 1575 MHz) .

The final resonant frequency (f 0 ') can be designed so as to correspond to the frequency band of a radio signal (e.g., GPS signal) to improve the reception sensitivity. Similarly, the final resonant frequency f 0 'can be set through designing the size, thickness, width, width, separation distance, etc. of the resonator unit 410 and the converter unit 420.

7 is a view schematically showing a structure of a metal pattern formed on the first conductive layer and the fourth conductive layer of the probe apparatus.

Referring to FIG. 7, the first conductive layer 310 and the fourth conductive layer 340 serve as a ground for shielding surrounding noise signals. The metal patterns 710 and 720 formed on the first conductive layer 310 and the fourth conductive layer 340 may be symmetrical with respect to each other.

More specifically, the first metal pattern 710 formed on the first conductive layer 310 includes a signal detection region 711, a loop open region 712, a first shield region 713, A connector connection region 714, and a connector connection region 715.

The signal detection area 711 may be formed such that one end of the first metal pattern 710 is grounded for detection of a noise signal. That is, one end of the loop-shaped metal pattern is formed so as to open to the ground. The noise signal input through the signal detection region 711 is transmitted to the resonant portion formed in the second conductive layer 320 and the third conductive layer 330 through at least one via hole.

The loop open region 712 may be formed in a rectangular loop shape in which the center region is opened so that the operation of the loop pattern formed in the second and third conductive layers 320 and 330 is realized. At this time, the loop opening region 712 may be formed to be the same as or larger than the loop pattern formed in the second and third conductive layers 320 and 330.

The first shield region 713 is formed of a flat conductive plate and can serve as a ground for shielding surrounding noise signals. The first shield region 713 may be the same or larger than the parallel conductive plate formed on the second and third conductive layers 320 and 330.

The second shield region 714 is also made of a flat conductive plate, and can serve as a ground for shielding noise signals around the periphery. The second shield region 714 may be larger than the converter portion formed in the second and third conductive layers 320 and 330.

The connector connection area 715 may be configured to be connected to the SMA connector 730. The connector connection region 715 formed in the first conductive layer 310 is provided with via holes 716 and 893 connected to the second conductive layer 320 so that the output signal of the probe device is transmitted through the via hole 716, In the direction of the connector 730 through the connector 730.

The fourth metal pattern 720 formed on the fourth conductive layer 340 also includes a signal detection region 721, a loop open region 722, a first shield region 723, a second shield region 724, And a connector connection area 725.

The fourth metal pattern 720 may be configured to be symmetrical with the first metal pattern 710. However, unlike the first metal pattern 710, the fourth metal pattern 720 does not have a via hole for applying an output signal of the probe device in the direction of the connector 730.

In one embodiment, when the probe apparatus desires to detect a fine noise signal corresponding to the frequency band (1575 MHz) of the GPS signal, the signal detection regions 711 and 721 formed in the first and fourth conductive layers 310 and 340, The width d 1 of the loop open regions 712 and 722 may be 0.2 mm and the width d 2 and the length d 3 of the loop open regions 712 and 722 may be 2.3 mm and 1.4 mm, .

In addition, the first and fourth conductive layers 310 and 340 of the first shield region width (713, 723) (d 4) may be formed of a 5.0㎜, the second shield area 714 is formed in the The width d 5 may be 24.7 mm, and the width of the connector connection region 715 may be 7.0 mm.

When the frequency band of the radio signal to be measured by the probe apparatus is changed, the signal detection regions 711 and 721, the loop open regions 712 and 722, the first shield regions 713 and 723, It should be apparent to those skilled in the art that the numerical values of the areas 714 and 724 and the connector connecting areas 715 and 725 should be changed.

8 and 9 are views schematically showing the structure of a metal pattern formed on the second conductive layer and the third conductive layer of the probe apparatus.

Referring to FIGS. 8 and 9, the second conductive layer 320 and the third conductive layer 330 form a resonance part and a converter part through a pre-designed metal pattern to measure a fine noise signal generated in the cellular phone PCB substrate Can play a role.

8, the second metal pattern 800 formed on the second conductive layer 320 includes a loop pattern 810, first through fourth connection portions 820 through 823, A first transmission strip 840, a second transmission strip 850, first to third shield regions 860 to 880, and first to fourth via holes 890 to 893.

The loop pattern 810 is formed in a rectangular loop shape in which a middle region is opened, and can operate as an inductor. In addition, a portion of the upper right region of the loop pattern 810 may be formed to be open. The first opening of the loop pattern 810 may be connected to the second via hole 891 through the first connection portion 820 and the second opening may be connected to the parallel conductive plate 830 through the second connection portion 821. [ Lt; / RTI >

The loop pattern 810 may be connected to the first conductive layer 310 and the fourth conductive layer 340 through the second via hole 891. [ Accordingly, the noise signals detected in the signal detection regions of the first and fourth conductive layers 310 and 340 can be input into the loop pattern 810 through the second via hole 891. [

The parallel conductive plate 830 is formed of a rectangular metal plate and can operate as a capacitor. The parallel conductive plate 830 forms a resonance part together with the loop pattern 810, and the resonance part can operate as an LC filter for filtering a specific frequency band.

The first transmission strip 840 may be formed in a "? &Quot; shape. One end of the first transmission strip 840 may be connected to the balanced conductive plate 830 through the third connection portion 822 and the other end may be connected to the second via hole 891 through the fourth connection portion 823. [ . The first transmission strip 840 may be connected to the first conductive layer 310 and the fourth conductive layer 340 through a second via hole 891.

The second transmission strip 850 is spaced apart from the first transmission strip 840 by a certain distance, and may be formed in a "? "Shape. One end of the second transmission strip 850 may be connected to the third via hole 892 and the other end may be connected to the fourth via hole 893. [

The second transmission strip 850 may be connected to the third conductive layer 330 through the third via hole 892 and may be connected to the first conductive layer 310 through the fourth via hole 893. [ The second transmission strip 850 can be connected to the first conductive layer 310, the third conductive layer 330 and the fourth conductive layer 340 through the third via hole 892 The first conductive layer 310 and the fourth conductive layer 340 may be connected to each other through a fourth via hole 893.

The second transmission strip 850 forms a converter section together with the first transmission strip 840, and the converter section can perform an operation of converting two noise signals output from the resonance section into one noise signal.

More specifically, the first transmission strip 840 formed in the second conductive layer 320 may transmit the filtered noise signal through the resonant portion to the second transmission strip 850 through an electromagnetic field. The second transmission strip 850 can transmit the noise signal received from the first transmission strip 840 to the output port of the first conductive layer 310 through the fourth via hole 893. [

The first to third shield regions 860 to 880 are made of a flat conductive plate, and can shield noise signals around them. The first shield region 860 is disposed on top of the second metal pattern 800 while the second shield region 870 is disposed below the second metal pattern 800 and the third shield region 880 And may be disposed in the right middle area of the second metal pattern 800. [ At this time, the second shield region 870 may be configured to be symmetrical with the first shield region 860.

Also, the first to third shield regions 860 to 880 may be connected to the plurality of first via holes 890. The first to third shield regions 860 to 880 may be connected to the first conductive layer 310 and the fourth conductive layer 340 that serve as a ground via the first via holes 890.

9, the third metal pattern 900 formed on the third conductive layer 330 includes a loop pattern 910, first to fourth connection portions 920 to 923, A first transmission strip 940, a second transmission strip 950, first to third shield regions 960 to 980, and first to third via holes 990 to 992.

The loop pattern 910 formed in the third conductive layer 330 may be formed in the same manner as the loop pattern 810 formed in the second conductive layer 320. [ However, the loop pattern 910 formed in the third conductive layer 330 may be formed such that a portion of the lower right region is opened.

Similarly, the first opening of the loop pattern 910 may be connected to the second via hole 991 through the first connection portion 920 and the second opening may be connected to the parallel conductive plate 930 through the second connection portion 921. [ Lt; / RTI >

The parallel conductive plate 930 formed on the third conductive layer 330 may be formed in the same manner as the parallel conductive plate 830 formed on the second conductive layer 320. Similarly, the parallel conductive plate 930 forms a resonance portion together with the loop pattern 910, and the resonance portion can operate as an LC filter for filtering a specific frequency band.

The first transmission strip 940 may be formed in a "b" shape. One end of the first transmission strip 940 may be connected to the balanced conductive plate 930 through the third connection portion 922 and the other end may be connected to the second via hole 991 through the fourth connection portion 923. [ . The first transmission strip 940 may be connected to the first conductive layer 310 and the fourth conductive layer 340 through a second via hole 991.

The second transmission strip 950 is spaced apart from the first transmission strip 940 by a certain distance, and may be formed in a "C" shape. One end of the second transmission strip 950 may be connected to the third via hole 992 and the other end may be formed to be open.

The second transmission strip 950 may be connected to the second conductive layer 320 through a third via hole 992. In another embodiment, the second transmission strip 950 may be connected to the first conductive layer 310, the third conductive layer 330, and the fourth conductive layer 340 through the third via hole 992 .

The second transmission strip 950 forms a converter section together with the first transmission strip 940, and the converter section can perform an operation of converting two noise signals output from the resonance section into one noise signal.

More specifically, the first transmission strip 940 formed in the third conductive layer 330 may transmit the filtered noise signal through the resonant portion to the second transmission strip 950 through an electromagnetic field. The second transmission strip 950 may transmit the noise signal transmitted from the first transmission strip 940 to the second transmission strip 850 of the second conductive layer 320 through the third via hole 992. Accordingly, the converter section can convert the two noise signals output from the resonance section into one noise signal and output it.

The first to third shield regions 960 to 980 formed in the third conductive layer 330 may be formed in the same manner as the first to third shield regions 860 to 880 formed in the second conductive layer 320 . In addition, the first to third shield regions 960 to 980 may be connected to the plurality of first via holes 990. The first to third shield regions 960 to 980 may be connected to the first conductive layer 310 and the fourth conductive layer 340 which serve as a ground via the first via holes 990.

In one embodiment, when the probe apparatus desires to detect a fine noise signal corresponding to the frequency band (1575 MHz) of the GPS signal, the loop patterns 810 and 910 formed in the second and third conductive layers 320 and 330 The width d 1 of the loop patterns 810 and 910 may be 2.3 mm and the thickness d 2 of the conductive lines forming the loop patterns 810 and 910 may be 0.1 mm. The open area d 3 of the protrusion can be 0.35 mm.

The length d 4 of the first connection portions 820 and 920 may be 0.73 mm and the length d 5 of the second connection portions 821 and 921 may be 1.5 mm. The length d 6 of the connection portions 822 and 922 may be 3.3 mm.

The lateral width d 7 of the parallel conductive plates 830 and 930 may be 3 mm and the vertical width d 8 may be 1.05 mm. The length d 9 of the first and second transmission strips 840, 850, 940 and 950 may be 21.5 mm and the length d 9 of the first and second transmission strips 840 and 940, The separation distance d 10 may be 0.25 mm.

The distance d 11 between the first via holes 890 and 990 disposed in the first to third shield regions 860 to 880 and 960 to 980 is preferably 1.5 mm or less for efficient shielding effect Do.

If the frequency band of the radio signal to be measured is changed, the loop pattern 810, 910, the first to fourth connection portions 820 to 823, 920 to 923, the parallel conductive plates 830, 930 The first transmission strips 840 and 940, the second transmission strips 850 and 950, the first to third shield areas 860 to 880 and 960 to 980 and the plurality of via holes 890 to 893 and 990 to 992 It should be apparent to those skilled in the art that the design values should be altered.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit 180 of the terminal. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: mobile terminal 210: probe device
220: low-noise amplifier 230: spectrum analyzer
410: resonance part 420: converter part
411: Loop pattern 412: Parallel conductive plate

Claims (5)

A printed circuit board comprising first to fourth conductive layers and first to third dielectric layers respectively disposed between the first to fourth conductive layers;
A resonance part formed on the second conductive layer and the third conductive layer of the printed circuit board and filtering the fine noise signal; And
And a converter unit formed integrally with the resonance unit and converting the two noise signals output from the resonance unit into a noise signal and outputting the noise signal.
The method according to claim 1,
Wherein the resonator includes a loop pattern that operates as an inductor and a parallel conductive plate that operates as a capacitor.
The method according to claim 1,
Wherein the converter section includes a first transmission strip connected to the resonance section and a second transmission strip spaced apart from the first transmission strip by a predetermined distance.
The method according to claim 1,
Wherein the converter unit performs impedance matching with a low noise amplifier.
The method according to claim 1,
Wherein the first and fourth conductive layers are connected to the second and third conductive layers through a plurality of via holes and serve as a ground for shielding an external signal. .
KR1020150110198A 2015-08-04 2015-08-04 Device for measuring micro noise KR20170016732A (en)

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KR1020150110198A KR20170016732A (en) 2015-08-04 2015-08-04 Device for measuring micro noise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150110198A KR20170016732A (en) 2015-08-04 2015-08-04 Device for measuring micro noise

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