WO2010035661A1 - ミリ波誘電体内伝送装置とその製造方法及びミリ波誘電体内伝送方法 - Google Patents
ミリ波誘電体内伝送装置とその製造方法及びミリ波誘電体内伝送方法 Download PDFInfo
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- WO2010035661A1 WO2010035661A1 PCT/JP2009/066083 JP2009066083W WO2010035661A1 WO 2010035661 A1 WO2010035661 A1 WO 2010035661A1 JP 2009066083 W JP2009066083 W JP 2009066083W WO 2010035661 A1 WO2010035661 A1 WO 2010035661A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/16—Dielectric waveguides, i.e. without a longitudinal conductor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- G01S7/032—Constructional details for solid-state radar subsystems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/12—Mountings, e.g. non-detachable insulating substrates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/5161—Combination of different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/548—Phase or frequency modulation
- H04B10/556—Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49016—Antenna or wave energy "plumbing" making
Definitions
- the present invention relates to an in-millimeter-wave dielectric transmission device applicable to an automobile collision-preventing radar system that transmits millimeter-wave signals using a dielectric as a transmission path, a manufacturing method thereof, and a millimeter-wave dielectric transmission method. .
- the millimeter wave dielectric is configured by the signal processing substrate. It absorbs vibration of the in-vivo transmission device itself, and enables high-speed data transmission using a millimeter-wave signal between the signal processing boards via the viscoelastic member.
- in-vehicle devices such as car navigation devices and car audio devices are installed in automobiles around the world.
- environmental tests such as temperature and humidity tests, which are weather environment tests, and vibration tests and impact tests, which are mechanical environment tests, and are required to operate normally in all regions of the earth.
- a vibration test which is a mechanical environment test, is performed as an indispensable environmental test because in-vehicle devices are often used in an environment with vibration.
- Securing vibration resistance is very important for in-vehicle devices.
- electronic devices such as automobile collision prevention radar systems that perform high-speed data transmission using millimeter-wave signals are beginning to increase.
- the anti-collision radar system is an adaptive speed control device that controls the distance between the front vehicle and the front vehicle according to the speed as a front monitoring radar in order to avoid collision with the front vehicle using electromagnetic waves in the millimeter wave band.
- the collision prevention radar system includes a plurality of signal processing boards in the collision prevention radar system, and processes signals by performing high-speed data transmission of millimeter wave signals between the signal processing boards.
- Patent Document 1 discloses that the structure of the connector is strengthened.
- the connector structure is solidified by filling the connector with an adhesive-curing high dielectric resin and curing it.
- connectors and cables for high-speed data transmission have many pins. Therefore, there is a problem that the size of the electronic device is increased and the cost is increased.
- the present invention solves such a problem, and can reduce vibrations given from the outside and vibrations caused by the operation of the electronic device itself, and can reduce connectors and cables for high-speed data transmission.
- An object of the present invention is to provide an in-millimeter-wave dielectric transmission device capable of high-speed data transmission, a manufacturing method thereof, and a millimeter-wave dielectric transmission method.
- the above-described problems are a first signal processing board that processes a millimeter-wave signal and a second signal processing board that is signal-coupled to the first signal processing board and receives the millimeter-wave signal and performs signal processing. And a viscoelastic member having a predetermined relative dielectric constant and a predetermined dielectric loss tangent provided between the first signal processing board and the second signal processing board, the viscoelastic member serving as a dielectric transmission line This is solved by the in-millimeter-wave dielectric transmission device.
- the viscoelastic member having a predetermined relative dielectric constant and a predetermined dielectric loss tangent is provided between the first signal processing board and the second signal processing board.
- the viscoelastic member absorbs vibration when an external force is applied to the signal processing board.
- the manufacturing method of the in-millimeter-wave dielectric transmission device includes a step of forming a first signal processing board for processing a millimeter-wave signal, and receiving a millimeter-wave signal from the first signal processing board.
- a millimeter wave capable of transmitting electromagnetic waves via a viscoelastic member having a predetermined relative dielectric constant and a predetermined dielectric loss tangent between signal processing substrates.
- An intra-dielectric transmission device can be fabricated.
- the in-millimeter-wave dielectric transmission device performs steps of processing an input signal to generate a millimeter-wave signal, and converting the generated millimeter-wave signal into an electromagnetic wave. Transmitting the converted electromagnetic wave to one part of a viscoelastic member having a predetermined relative dielectric constant and a predetermined dielectric loss tangent constituting the dielectric transmission path, and viscoelasticity constituting the dielectric transmission path Receiving an electromagnetic wave transmitted to another part of the member; converting the received electromagnetic wave into a millimeter wave signal; and processing the converted millimeter wave signal to generate an output signal. It is what you have.
- a viscoelastic member having a predetermined relative dielectric constant and a predetermined dielectric loss tangent from the first signal processing board to the second signal processing board without using a connector or a cable.
- millimeter wave signals can be transmitted at high speed in a vibration environment.
- a predetermined relative dielectric constant and a predetermined dielectric loss tangent are provided between the first signal processing board and the second signal processing board.
- the viscoelastic member which has is provided.
- the viscoelastic member is interposed from the first signal processing board to the second signal processing board without using a connector or a cable, and a millimeter wave signal can be transmitted at high speed in a vibration environment.
- a millimeter wave signal can be transmitted at high speed in a vibration environment.
- FIG. 2 is a cross-sectional view showing a configuration example of an in-millimeter-wave dielectric transmission device 100.
- FIG. 2 is a block diagram illustrating a configuration example of an in-millimeter-wave dielectric transmission device 100.
- FIG. It is a disassembled perspective view which shows the assembly example (the 1) of the in-millimeter-wave dielectric transmission apparatus. It is a disassembled perspective view which shows the assembly example (the 2) of the in-millimeter-wave dielectric transmission apparatus 100. It is a graph which shows the example of the characteristic of the in-millimeter-wave dielectric transmission apparatus 100 by simulation.
- FIG. 1 is a perspective view showing a configuration example of an in-millimeter-wave dielectric transmission device 100 according to the present invention
- FIG. 2 is a cross-sectional view thereof.
- the in-millimeter-wave dielectric transmission device 100 shown in FIGS. 1 and 2 is applicable to an automobile collision prevention radar system or the like.
- the in-millimeter-wave dielectric transmission device 100 includes a first signal processing board (hereinafter referred to as a signal processing board 101), a second signal processing board (hereinafter referred to as a signal processing board 201), and a viscoelastic member 107. ing.
- a signal processing board 201 is signal-coupled to a signal processing board 101, and a viscoelastic member 107 having a predetermined relative dielectric constant and a predetermined dielectric loss tangent is provided between the boards. It has been.
- the viscoelastic member 107 absorbs vibrations when an external force is applied to the signal processing boards 101 and 201, and millimeter wave band electromagnetic waves are transmitted into the viscoelastic member 107 at high speed.
- pillars 10 are provided at the four corners of the signal processing boards 101 and 201 and have a role of fixing the signal processing boards.
- a metal material may be used for the column 10 or a resin material may be used.
- the signal processing boards 101 and 201 and the column 10 may be fixed to each other by soldering, or a screw may be fixed to the column 10. It may be screwed into the part, or caulking may be used.
- the support 10 with a spring property (for example, using a coil spring or the like), the vibration of the in-millimeter-wave dielectric transmission device 100 can be absorbed by the support 10. Thereby, vibration can be absorbed mutually with the viscoelastic member 107.
- the signal processing board 101 and the signal processing board 201 are fixed using the support column 10, but the support 10 may be detached and fixed only by the viscoelastic member 107.
- the signal processing board 101 includes a first signal generation unit (hereinafter referred to as a signal generation unit 102), a first transmission line (hereinafter referred to as a transmission line 103), a first antenna unit (hereinafter referred to as an antenna unit). 104), a first insulator layer (hereinafter referred to as insulator layer 105), and a first ground wiring pattern (hereinafter referred to as ground wiring pattern 106).
- a signal generation unit hereinafter referred to as a signal generation unit 102
- a first transmission line hereinafter referred to as a transmission line 103
- a first antenna unit hereinafter referred to as an antenna unit
- 104 a first insulator layer
- ground wiring pattern 106 a first ground wiring pattern
- a ground wiring pattern 106 is disposed on the entire upper surface of the insulator layer 105 constituting the signal processing substrate 101.
- the ground wiring pattern 106 functions as a ground wiring of the transmission line 103 and a ground wiring of the signal processing board 101.
- a signal generation unit 102, a transmission line 103, and an antenna unit 104 are disposed at predetermined locations on the lower surface side of the insulator layer 105.
- the signal processing board 201 includes a second signal generation unit (hereinafter referred to as a signal generation unit 202), a second transmission line (hereinafter referred to as a transmission line 203), and a second antenna unit (hereinafter referred to as an antenna unit). 204), a second insulator layer (hereinafter referred to as insulator layer 205), and a second ground wiring pattern (hereinafter referred to as ground wiring pattern 206).
- a ground wiring pattern 206 is disposed on the entire upper surface of the insulator layer 205 constituting the signal processing substrate 201.
- the ground wiring pattern 206 also functions as the ground wiring of the transmission line 203 and the ground wiring of the signal processing board 201, similarly to the ground wiring pattern 106.
- a signal generation unit 202, a transmission line 203, and an antenna unit 204 are disposed at predetermined locations on the lower surface side of the insulator layer 205.
- an input signal is input to the signal generation unit 102, and the signal generation unit 102 processes the input signal to generate a millimeter wave signal.
- a transmission line 103 is electrically connected to the signal generation unit 102, and the generated millimeter wave signal is transmitted through the transmission line 103.
- the transmission line 103 is illustrated as a microstrip line in FIGS. 1 and 2, but may be configured with a stripline, a coplanar line, a slot line, or the like.
- An antenna unit 104 is electrically connected to the transmission line 103, and the antenna unit 104 has a function of converting a transmitted millimeter wave signal into an electromagnetic wave and transmitting the electromagnetic wave.
- a patch antenna is used for the antenna unit 104. 1 and 2 illustrate a patch antenna.
- the viscoelastic member 107 constituting the dielectric transmission path is in contact with the antenna unit 104, and the electromagnetic wave converted by the antenna unit 104 is transmitted to one part of the viscoelastic member 107.
- the viscoelastic member 107 has a predetermined dielectric constant and a predetermined dielectric loss tangent, and has a characteristic of efficiently transmitting an electromagnetic wave in the millimeter wave band.
- the relative dielectric constant and dielectric loss tangent of the viscoelastic member 107 will be described later in Table 1.
- An antenna unit 204 is in contact with the viscoelastic member 107, and the antenna unit 204 receives an electromagnetic wave transmitted to another part of the viscoelastic member 107 and converts the electromagnetic wave into a millimeter wave signal.
- a transmission line 203 is electrically connected to the antenna unit 204, and the transmission line 203 transmits a converted millimeter wave signal.
- the transmission line 203 is electrically connected to a signal generation unit 202.
- the signal generation unit 202 performs signal processing on the transmitted millimeter wave signal to generate an output signal.
- the transmission line 203 may be configured by a strip line, a coplanar line, a slot line, and the like in the same manner as the transmission line 103.
- FIG. 3 is a block diagram illustrating a configuration example of the in-millimeter-wave dielectric transmission device 100.
- the signal generation unit 102 includes a modulation circuit 111 and a first frequency conversion circuit (hereinafter referred to as a frequency conversion circuit 112).
- An input signal is input to the modulation circuit 111, and the modulation circuit 111 modulates the input signal.
- a frequency conversion circuit 112 is connected to the modulation circuit 111, and the frequency conversion circuit 112 converts the frequency of the modulated input signal to generate a millimeter wave signal.
- the transmission line 103 is connected to the frequency conversion circuit 112.
- An amplifier 113 may be mounted in the signal generation unit 102 in order to amplify the millimeter wave signal. For example, in FIG. 3, an amplifier 113 is disposed between the frequency conversion circuit 112 and the transmission line 103.
- the signal generation unit 202 includes a second frequency conversion circuit (hereinafter referred to as a frequency conversion circuit 212) and a demodulation circuit 211.
- a frequency conversion circuit 212 is connected to the transmission line 203 described above, and the frequency conversion circuit 212 frequency-converts a millimeter wave signal transmitted from the transmission line 203 and outputs an output signal.
- a demodulation circuit 211 is connected to the frequency conversion circuit 212, and the demodulation circuit 211 demodulates the output signal that has been output.
- an amplifier 213 may be mounted in the signal generation unit 202 in order to amplify a millimeter wave signal. For example, in FIG. 3, an amplifier 213 is disposed between the frequency conversion circuit 212 and the transmission line 203.
- an input signal is transmitted from the signal processing board 101, and the transmitted input signal is received by the signal processing board 201 to generate an output signal.
- the signal processing board 101 is provided with the function of the signal processing board 201, a millimeter wave signal can be transmitted bidirectionally between the signal processing boards.
- the viscoelastic member 107 has a predetermined relative dielectric constant and a predetermined dielectric loss tangent.
- a dielectric material made of an acrylic resin, a urethane resin, an epoxy resin, a silicone, and a polyimide is used for the viscoelastic member 107.
- the relative dielectric constant of the viscoelastic member 107 is about 3 to 6, and the dielectric loss tangent is about 0.0001 to 0.001. It is desirable to do.
- Table 1 shows typical examples of dielectric materials used for the viscoelastic member 107.
- the relative permittivity of the acrylic resin system is 2.5 to 4.5, and the dielectric loss tangent is 0.001 to 0.05.
- the relative dielectric constant of the urethane resin system is 2.8 to 4, and the dielectric loss tangent is 0.001 to 0.05.
- the relative permittivity of the epoxy resin system is 4 to 6, and the dielectric loss tangent is 0.001 to 0.01.
- the relative permittivity of silicone is 3 to 6, and the dielectric loss tangent is 0.0001 to 0.001.
- the relative permittivity of polyimide is 3 to 4, and the dielectric loss tangent is 0.001 to 0.01.
- the viscoelastic member 107 By providing the viscoelastic member 107 between the signal processing board 101 and the signal processing board 201, the viscoelastic member 107 absorbs vibration when an external force is applied to the signal processing boards 101 and 102. Can do. Further, the viscoelastic member 107 is interposed from the signal processing board 101 to the signal processing board 201 without using a connector or a cable, and a millimeter wave signal can be transmitted at high speed in a vibration environment.
- FIG. 4 is an exploded perspective view showing an assembly example (No. 1) of the in-millimeter-wave dielectric transmission device 100.
- the ground wiring pattern 106 is formed on the entire upper surface side of the insulator layer 105, and the transmission line 103 and the antenna unit 104 are formed on the lower surface side of the insulator layer 105.
- the antenna unit 104 has a function of converting a millimeter-wave signal into an electromagnetic wave and transmitting the electromagnetic wave to a part of a viscoelastic member 107 described later.
- the insulator layer 105 is made of a resin material such as an epoxy resin or an acrylic resin.
- the transmission line 103, the antenna portion 104, and a circuit pattern are formed by disposing a metal material such as copper on both the upper surface and the lower surface of the insulator layer 105 and etching the metal material.
- the antenna unit 104 in this assembly example illustrates a patch antenna. Since the patch antenna can be made thin like the transmission line 103 and the circuit pattern, the adhesion between the antenna unit 104 and the viscoelastic member 107 can be increased, and efficient electromagnetic coupling is realized. In addition, since the patch antenna has a simple and two-dimensional physical shape, it can be manufactured at low cost.
- the signal generation unit 102 that processes an input signal to generate a millimeter-wave signal includes the modulation circuit 111, the frequency conversion circuit 112, and the amplifier 113 illustrated in FIG. It is arranged on the lower surface side.
- the signal processing board 101 includes the signal generation unit 102, the transmission line 103, the antenna unit 104, the ground wiring pattern 106, the modulation circuit 111, the frequency conversion circuit 112, and the amplifier 113.
- FIG. 5 is an exploded perspective view showing an assembly example (part 2) of the in-millimeter-wave dielectric transmission device 100.
- the in-millimeter-wave dielectric transmission device 100 has an upper surface side of the signal processing board 201 manufactured as described above (the side on which the signal generation unit 202, the transmission line 203, and the antenna unit 204 are disposed. ) Is contacted with a viscoelastic member 107 of a dielectric transmission line having a predetermined relative dielectric constant and a predetermined dielectric loss tangent.
- the viscoelastic member 107 since the viscoelastic member 107 has a predetermined viscosity, it can be brought into contact with the signal processing board 201 and the viscoelastic member 107 so that air or the like enters and no gap is formed.
- holes for inserting screws are formed in the four corners of the signal processing board 101 and the signal processing board 201.
- the pillars 10 made of a metal material or resin are erected in holes opened at the four corners of the signal processing board 201. Screws are inserted into the four corners with holes from the lower surface side of the signal processing board 201, and the screws and the pillars 10 are screwed together to fix the signal processing board 201 and the pillars 10 together.
- the signal generating unit 102, the transmission line 103, and the antenna unit 104 of the signal processing substrate 101 are disposed on the surface of the viscoelastic member 107 opposite to the surface where the signal processing substrate 201 and the viscoelastic member 107 are in contact with each other.
- the signal processing board 101 is brought into contact with the surface facing down. Then, screws are inserted into holes formed in the four corners of the signal processing board 101 from the upper surface side of the signal processing board 101, and the screws and the columns 10 are screwed together to fix the signal processing substrate 101 and the columns 10.
- the in-millimeter-wave dielectric transmission device 100 capable of transmitting electromagnetic waves through the viscoelastic member 107 having a predetermined relative dielectric constant and a predetermined dielectric loss tangent between the signal processing substrates is manufactured. can do.
- the signal processing board 101 In the transmission method of the in-millimeter-wave dielectric transmission device 100 manufactured by the manufacturing method as described above, the signal processing board 101 generates a millimeter wave signal from an input signal and transmits the millimeter wave signal to the signal processing board 201, and the signal processing board Assume that 201 generates an output signal.
- the input signal is input to the modulation circuit 111 constituting the signal generation unit 102 and modulated by the modulation circuit 111.
- the modulated input signal is frequency converted into a millimeter wave signal by the frequency conversion circuit 112.
- the input signal frequency-converted into a millimeter wave signal is amplified by the amplifier 113 and transmitted through the transmission line 103.
- the transmitted input signal is sent to the antenna unit 104.
- An input signal sent to the antenna unit 104 is converted into an electromagnetic wave by the antenna unit 104.
- the converted electromagnetic wave is transmitted to one part of the viscoelastic member 107 constituting a dielectric transmission line having a predetermined relative dielectric constant and a predetermined dielectric loss tangent, and propagates in the viscoelastic member 107.
- the electromagnetic wave propagating through the viscoelastic member 107 and transmitted to the other part of the viscoelastic member 107 is received by the antenna unit 204 and converted into a millimeter wave signal.
- the converted millimeter wave signal is transmitted through the transmission line 203 and is amplified by the amplifier 213 constituting the signal generation unit 202.
- the amplified millimeter wave signal is frequency converted by the frequency conversion circuit 212 to generate an output signal.
- the generated output signal is demodulated by the demodulation circuit 211 and output.
- the viscoelastic member 107 having a predetermined relative dielectric constant and a predetermined dielectric loss tangent is interposed from the signal processing board 101 to the signal processing board 201 without using a connector or a cable, and the vibration environment. Underneath, millimeter-wave signals can be transmitted at high speed.
- FIG. 6 is a graph showing a characteristic example of the in-millimeter-wave dielectric transmission device 100 by simulation.
- the simulation result shown in FIG. 6 is a result calculated with the parameter values as shown in Table 2 using the in-millimeter-wave dielectric transmission device 100 having the configuration shown in FIG.
- the horizontal axis represents the frequency (GHz) of the electromagnetic wave signal
- the vertical axis represents the S parameter intensity (dB).
- the S parameter is a parameter representing the transmission and reflection of electromagnetic waves.
- the solid line indicates the transfer characteristic 301 and the broken line indicates the reflection characteristic 302.
- a patch antenna is used for the antenna units 104 and 204 shown in FIG.
- One side of the patch antenna is a 1 mm square, and its thickness is 0.1 mm.
- the transmission lines 103 and 203 are microstrip lines, and the line width is 0.2 mm.
- the thickness of the viscoelastic member 107 provided on the signal processing board 101 and the signal processing board 201 is 10 mm.
- the thickness of the patch antenna and the viscoelastic member 107 is defined as the vertical size of a predetermined surface of the signal processing boards 101 and 201.
- the insulating layers 105 and 205 are made of glass epoxy resin and have a relative dielectric constant of 3.5 and a dielectric loss tangent of 0.005.
- the viscoelastic member 107 uses liquid silicone rubber, and has a relative dielectric constant of 5.4 and a dielectric loss tangent of 0.0006.
- the transfer characteristic 301 is larger than the reflection characteristic 302 in the intensity of the S parameter. This indicates that data transmission is possible in the frequency band of the electromagnetic wave from 58 GHz to 58.7 GHz.
- the viscoelastic member 107 having a predetermined relative dielectric constant and a predetermined dielectric loss tangent is provided between the signal processing board 101 and the signal processing board 201. It is what With this configuration, the viscoelastic member 107 absorbs vibration when an external force is applied to the signal processing boards 101 and 102, so that vibration of the signal processing board 101 and the signal processing board 201 can be reduced.
- the viscoelastic member 107 is interposed from the signal processing board 101 to the signal processing board 201 without using a connector or a cable, and a millimeter wave signal can be transmitted at high speed in a vibration environment.
- the highly reliable in-millimeter-wave dielectric transmission device 100 capable of high-speed signal transmission can be provided.
- the signal processing board 101 is provided via a second viscoelastic member (not shown) that provides a dielectric transmission path different from the viscoelastic member 107 provided between the signal processing board 101 and the signal processing board 201.
- One or more third signal processing boards may be provided outside and / or outside the signal processing board 201, and the second viscoelastic member may constitute the dielectric transmission path.
- the second viscoelastic member has a predetermined relative dielectric constant and a predetermined dielectric loss tangent.
- vibrations of the signal processing boards 101 and 201 and the third signal processing board can be reduced, and a millimeter wave signal can be reduced to a predetermined relative dielectric constant and a predetermined distance between the signal processing boards without using a connector or a cable.
- High-speed transmission can be performed via the second viscoelastic member having a dielectric loss tangent.
- FIG. 7 is a perspective view showing a configuration example of the in-millimeter-wave dielectric transmission device 100A according to the first embodiment
- FIG. 8 is a cross-sectional view thereof.
- the in-millimeter-wave dielectric transmission device 100A shown in FIGS. 7 and 8 is provided with a housing 20 via a viscoelastic member 207 on the lower surface side of the signal processing board 201 of the in-millimeter-wave dielectric transmission device 100 described above. is there.
- Components having the same names and reference numerals as those of the embodiment have the same functions, and thus description thereof is omitted.
- the in-millimeter-wave dielectric transmission device 100A has a viscoelastic member 207 on the surface of the ground wiring pattern 206 formed on the signal processing board 201 of the in-millimeter-wave dielectric transmission device 100. It is in contact. Further, the viscoelastic member 207 and the housing 20 are in contact with each other in a direction facing the surface of the ground wiring pattern 206 and the surface where the viscoelastic member 207 is in contact.
- the viscoelastic member 207 has a predetermined relative dielectric constant and a predetermined dielectric loss tangent, similar to the viscoelastic member 107 described above.
- a predetermined relative dielectric constant for example, an acrylic resin type, a urethane resin type, an epoxy resin type, a silicone type, and a polyimide type A dielectric material consisting of is used.
- the viscoelastic member 207 is provided between the housing 20 and the signal processing board 201, and the in-millimeter-wave dielectric transmission device 100 is provided. In comparison, vibration resistance and shock resistance are further enhanced.
- the viscoelastic member 207 is provided between the signal processing board 201 and the housing 20, vibration when an external force is applied to the in-millimeter wave dielectric transmission device 100A having the housing 20 can be suppressed.
- FIG. 9 is a perspective view showing a configuration example of the in-millimeter-wave dielectric transmission device 100B according to the second embodiment
- FIG. 10 is a cross-sectional view thereof.
- the in-millimeter-wave dielectric transmission device 100B shown in FIGS. 9 and 10 includes the viscoelastic members 107 and 207, the signal processing board 101, the signal processing board 201, and the housing of the in-millimeter-wave dielectric transmission apparatus 100A shown in the first embodiment.
- the adhesive 30 is used for each adhesion with the body 20. Those having the same names and reference numerals as those of the first embodiment have the same functions, and therefore description thereof is omitted.
- the in-millimeter-wave dielectric transmission device 100B includes the viscoelastic member 107 and the signal processing board 101, the viscoelastic member 107 and the signal processing board 201, the viscoelastic member 207, and the like.
- the adhesive 30 is applied between the signal processing board 201 and between the viscoelastic member 207 and the housing 20.
- the adhesive 30 is made of a dielectric material such as acrylic resin, urethane resin, epoxy resin, silicone, polyimide, and cyanoacrylate.
- Acrylic resin type, urethane resin type, epoxy resin type, silicone type, polyimide type, cyanoacrylate type, etc. have good adhesiveness and adhesiveness, and have predetermined dielectric constant and predetermined dielectric loss tangent shown in Table 1. is doing. Therefore, the adhesive 30 does not disturb the millimeter wave band electromagnetic wave transmitted to the viscoelastic member 107.
- the adhesive 30 is applied to the predetermined surfaces of the viscoelastic members 107 and 207 of the in-millimeter-wave dielectric transmission device 100 described above in the embodiment and the opposite surface.
- the process of applying is added. Since the thing of the same name and code
- the adhesive 30 is applied to the predetermined surface of the viscoelastic members 107 and 207 and the surface opposite to the predetermined surface with a thickness of 1 mm or less.
- Examples of the application method include a dispenser, a printing machine, and an ink jet.
- the adhesive 30 to the viscoelastic members 107 and 207, the signal processing boards 101 and 201 and the viscoelastic members 107 and 207 are applied. 207 and the adhesion between the casing 20 and the viscoelastic member 207 are increased, so that the viscoelastic members 107 and 207 absorb vibration more and can further reduce the vibration of the signal processing boards 101 and 201 and the casing 20. . In addition, the adhesion between the signal processing boards 101 and 201 and the viscoelastic member 107 is increased, and electromagnetic wave absorption and reflection and leakage to the outside are reduced. Therefore, millimeter wave signals can be efficiently transmitted at high speed.
- FIG. 11 is a perspective view showing a configuration example of an in-millimeter-wave dielectric transmission device 100C according to the third embodiment
- FIG. 12 is a cross-sectional view thereof.
- the in-millimeter-wave dielectric transmission device 100C shown in FIG. 11 and FIG. 12 connects the antenna unit 104 and the antenna unit 204 of the in-millimeter-wave dielectric transmission device 100B shown in the second embodiment to a first slot (hereinafter referred to as a slot 110).
- the second slot hereinafter referred to as slot 210.
- the in-millimeter-wave dielectric transmission device 100C includes a signal processing board 401, a signal processing board 501, and a viscoelastic member 107.
- the first signal processing board (hereinafter referred to as the signal processing board 401) includes a signal generation unit 102, a transmission line 103, an insulator layer 105, a ground wiring pattern 106, and a slot 110.
- a signal generation unit 102 and a transmission line 103 are disposed on the upper surface side of the insulator layer 105.
- a ground wiring pattern 106 is formed on the entire lower surface of the insulator layer 105.
- Slots 110 are provided at predetermined locations on the ground wiring pattern 106 facing the transmission line 103.
- the length in the direction of the transmission line 103 is about 0.1 mm to 0.2 mm, and the length in the direction perpendicular to the transmission line 103 is a half of the wavelength of the millimeter wave signal used. 1.
- the slot 110 serves as a slot antenna.
- the slot antenna the current flowing on the surface of the transmission line 103 is cut off by the slot 110, and an electric field is generated in the cut off portion. In this way, the slot antenna converts millimeter wave signals into electromagnetic waves.
- the slot antenna is manufactured at the same time when the signal processing board 401 and the transmission lines 103 and 203 of the second signal processing board 501 described later and a circuit pattern (not shown) are manufactured by etching in the same manner as the patch antenna manufacturing method.
- the slot antenna has a narrower directivity than the patch antenna, so that leakage of electromagnetic waves propagating in the viscoelastic member 107 can be reduced. The influence of noise from can also be reduced.
- a second signal processing board (hereinafter referred to as a signal processing board 501) includes a signal generator 202, a transmission line 203, an insulator layer 205, a ground wiring pattern 206, and a slot 210.
- a signal generation unit 202 and a transmission line 203 are disposed on the lower surface side of the insulator layer 205.
- a ground wiring pattern 206 is formed on the entire surface.
- a slot 210 is provided at a predetermined position of the ground wiring pattern 206 facing the transmission line 203.
- the slot 210 also functions as a slot antenna like the slot 110.
- the size of the slot 210 is the same size as the slot 110.
- a viscoelastic member 107 having a predetermined relative dielectric constant and a predetermined dielectric loss tangent is provided between the signal processing board 401 and the signal processing board 501 configured as described above. At that time, the adhesive 30 is applied to a predetermined surface of the viscoelastic member 107 and a surface opposite to the predetermined surface.
- the viscoelastic member 107 and the adhesive 30 have a predetermined viscosity, they can be inserted between the signal processing boards so as not to form a gap with air or the like, and the adhesive 30 is inserted into the slots 110 and 210. None get in.
- the slots 110 and 210 serve as slot antennas, and the signal processing board 401 to the signal processing board 501 without using connectors or cables. Further, it is possible to transmit a millimeter wave signal at high speed in the vibration environment with the viscoelastic member 107 interposed therebetween. Accordingly, it is possible to provide a highly reliable in-millimeter-wave dielectric transmission device 100C capable of high-speed transmission of millimeter-wave signals using a slot antenna.
- the present invention is extremely effective when applied to an in-millimeter-wave dielectric transmission device used in an automobile collision prevention radar system or the like.
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Abstract
Description
Claims (16)
- ミリ波の信号を処理する第1の信号処理基板と、
前記第1の信号処理基板に対して信号結合され、前記ミリ波の信号を受信して信号処理する第2の信号処理基板と、
前記第1の信号処理基板と前記第2の信号処理基板との間に設けられた所定の比誘電率及び所定の誘電正接を有する粘弾性部材とを備え、
前記粘弾性部材が誘電体伝送路を構成するミリ波誘電体内伝送装置。 - 前記第1の信号処理基板は、
入力信号を信号処理してミリ波の信号を生成する第1の信号生成部と、
前記第1の信号生成部によって生成された前記ミリ波の信号を電磁波に変換し、前記誘電体伝送路を構成する前記粘弾性部材の一部位に当該電磁波を伝送する第1のアンテナ部とを有し、
前記誘電体伝送路を構成する前記粘弾性部材を介在して設けられる前記第2の信号処理基板は、
前記誘電体伝送路を構成する前記粘弾性部材の他部位に伝送された前記電磁波を受信し、当該電磁波を前記ミリ波の信号に変換する第2のアンテナ部と、
前記第2のアンテナ部によって変換された前記ミリ波の信号を信号処理して出力信号を生成する第2の信号生成部とを有する請求項1に記載のミリ波誘電体内伝送装置。 - 前記第1の信号処理基板は、
前記第1の信号生成部と前記第1のアンテナ部との間に電気的に接続されてミリ波の信号を伝送する第1の伝送線路を有し、
前記第2の信号処理基板は、
前記第2の信号生成部と前記第2のアンテナ部との間に電気的に接続されてミリ波の信号を伝送する第2の伝送線路を有する請求項2に記載のミリ波誘電体内伝送装置。 - 前記粘弾性部材には、
少なくとも、アクリル樹脂系、ウレタン樹脂系、エポキシ樹脂系、シリコーン系及びポリイミド系からなる誘電体素材が使用される請求項2に記載のミリ波誘電体内伝送装置。 - 前記第1の伝送線路及び前記第2の伝送線路には、
少なくとも、ストリップライン、マイクロストリップライン、コプレーナライン及びスロットラインのうちいずれか1つが使用される請求項3に記載のミリ波誘電体内伝送装置。 - 前記第1のアンテナ部及び前記第2のアンテナ部には、
少なくとも、パッチアンテナ又はスロットアンテナが使用される請求項3に記載のミリ波誘電体内伝送装置。 - 前記粘弾性部材が、
前記第1の信号処理基板又は前記第2の信号処理基板と筐体との間に設けられる請求項2に記載のミリ波誘電体内伝送装置。 - 前記第1の信号処理基板及び前記第2の信号処理基板と前記粘弾性部材との接着、及び前記筐体と前記粘弾性部材との接着に接着剤を用いて接着させる請求項7に記載のミリ波誘電体内伝送装置。
- 前記接着剤には、
少なくとも、アクリル樹脂系、ウレタン樹脂系、エポキシ樹脂系、シアノアクリレート系、シリコーン系及びポリイミド系からなる誘電体素材が使用される請求項8に記載のミリ波誘電体内伝送装置。 - 前記第1の信号生成部には、
入力信号を変調する変調回路と、
前記変調回路によって変調された入力信号を周波数変換してミリ波の信号を生成する第1の周波数変換回路とが実装され、
前記第2の信号生成部には、
前記ミリ波の信号を周波数変換して出力信号を出力する第2の周波数変換回路と、
前記第2の周波数変換回路から出力される前記出力信号を復調する復調回路とが実装される請求項3に記載のミリ波誘電体内伝送装置。 - 前記第1の信号生成部及び前記第2の信号生成部には、
前記ミリ波の信号を増幅する増幅器が各々実装される請求項10に記載のミリ波誘電体内伝送装置。 - 前記第1の信号処理基板と前記第2の信号処理基板との間に設けられた第1の粘弾性部材とは異なる誘電体伝送路を与え、所定の比誘電率及び所定の誘電正接を有する第2の粘弾性部材を介して、前記第1の信号処理基板の外側及び/又は前記第2の信号処理基板の外側に1枚以上の第3の信号処理基板が設けられ、前記第2の粘弾性部材が誘電体伝送路を構成する請求項1に記載のミリ波誘電体内伝送装置。
- ミリ波の信号を処理する第1の信号処理基板を形成する工程と、
前記第1の信号処理基板から前記ミリ波の信号を受信して信号を処理する第2の信号処理基板を形成する工程と、
前記第1の信号処理基板と前記第2の信号処理基板との間に所定の比誘電率及び所定の誘電正接を有した粘弾性部材を設け、当該粘弾性部材で誘電体伝送路を形成する工程とを有するミリ波誘電体内伝送装置の製造方法。 - 前記第1の信号処理基板を形成する際に、
入力信号を処理してミリ波の信号を生成する第1の信号生成部と、前記第1の信号生成部によって生成された前記ミリ波の信号を電磁波に変換し、前記誘電体伝送路を構成する前記粘弾性部材の一部位に当該電磁波を伝送する第1のアンテナ部とを基板の所定の面に配置し、
前記第2の信号処理基板を形成する際に、
前記誘電体伝送路を構成する前記粘弾性部材の他部位に伝送された前記電磁波を受信し、当該電磁波を前記ミリ波の信号に変換する第2のアンテナ部と、前記第2のアンテナ部によって変換された前記ミリ波の信号を信号処理して出力信号を生成する第2の信号生成部とを基板の所定の面に配置する請求項13に記載のミリ波誘電体内伝送装置の製造方法。 - 前記粘弾性部材の一面及び他面に接着剤を塗布し、当該接着剤が塗布された前記粘弾性部材を、前記第1の信号処理基板と前記第2の信号処理基板との間に設ける請求項14に記載のミリ波誘電体内伝送装置の製造方法。
- ミリ波誘電体内伝送装置が、
入力信号を信号処理してミリ波の信号を生成するステップと、
生成された前記ミリ波の信号を電磁波に変換するステップと、
変換された前記電磁波を誘電体伝送路を構成する所定の比誘電率及び所定の誘電正接を有する粘弾性部材の一部位に当該電磁波を伝送するステップと、
前記誘電体伝送路を構成する前記粘弾性部材の他部位に伝送された前記電磁波を受信するステップと、
受信された前記電磁波を前記ミリ波の信号に変換するステップと、
変換された前記ミリ波の信号を信号処理して出力信号を生成するステップとを有するミリ波誘電体内伝送方法。
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RU2011109261/07A RU2477867C2 (ru) | 2008-09-25 | 2009-09-15 | Устройство для передачи волны через диэлектрик, способ изготовления устройства и способ передачи волны миллиметрового диапазона через диэлектрик |
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US13/063,057 US8725069B2 (en) | 2008-09-25 | 2009-09-15 | Wave dielectric transmission device, manufacturing method thereof, and in-millimeter wave dielectric transmission method |
BRPI0918163A BRPI0918163A2 (pt) | 2008-09-25 | 2009-09-15 | dispositivo de transmissão dielétrica de onda milimétrica, e, métodos para fabricar um dispositivo de transmissão dielétrica de onda milimétrica, e de trnasmissão dielétrica de onda milimétrica. |
KR1020117005626A KR101667064B1 (ko) | 2008-09-25 | 2009-09-15 | 밀리미터파 유전체 내의 전송 장치 |
US14/045,062 US9088352B2 (en) | 2008-09-25 | 2013-10-03 | Wave dielectric transmission device, manufacturing method thereof, and in-millimeter wave dielectric transmission |
US14/721,204 US9344197B2 (en) | 2008-09-25 | 2015-05-26 | Wave dielectric transmission device, manufacturing method thereof, and in-millimeter wave dielectric transmission method |
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- 2009-09-15 CN CN200980135681.XA patent/CN102150059B/zh active Active
- 2009-09-15 EP EP09816076.5A patent/EP2327997A4/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
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CN102150059A (zh) | 2011-08-10 |
KR101667064B1 (ko) | 2016-10-17 |
US20150256263A1 (en) | 2015-09-10 |
JP5374994B2 (ja) | 2013-12-25 |
EP2327997A1 (en) | 2011-06-01 |
RU2477867C2 (ru) | 2013-03-20 |
US20110165839A1 (en) | 2011-07-07 |
EP2327997A4 (en) | 2014-02-12 |
BRPI0918163A2 (pt) | 2015-12-01 |
US9344197B2 (en) | 2016-05-17 |
US9647311B2 (en) | 2017-05-09 |
KR20110059848A (ko) | 2011-06-07 |
US20160226121A1 (en) | 2016-08-04 |
US8725069B2 (en) | 2014-05-13 |
CN102150059B (zh) | 2015-07-01 |
JP2010078430A (ja) | 2010-04-08 |
RU2011109261A (ru) | 2012-09-20 |
US9088352B2 (en) | 2015-07-21 |
US20140035388A1 (en) | 2014-02-06 |
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