WO2014106899A1 - High frequency oscillation source - Google Patents

High frequency oscillation source Download PDF

Info

Publication number
WO2014106899A1
WO2014106899A1 PCT/JP2013/050030 JP2013050030W WO2014106899A1 WO 2014106899 A1 WO2014106899 A1 WO 2014106899A1 JP 2013050030 W JP2013050030 W JP 2013050030W WO 2014106899 A1 WO2014106899 A1 WO 2014106899A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency
injection
oscillator
output
phase noise
Prior art date
Application number
PCT/JP2013/050030
Other languages
French (fr)
Japanese (ja)
Inventor
津留　正臣
恒次 堤
谷口　英司
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2014555411A priority Critical patent/JPWO2014106899A1/en
Priority to PCT/JP2013/050030 priority patent/WO2014106899A1/en
Publication of WO2014106899A1 publication Critical patent/WO2014106899A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/24—Automatic control of frequency or phase; Synchronisation using a reference signal directly applied to the generator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number

Definitions

  • the present invention relates to a high-frequency oscillation source that uses a low-phase noise oscillator, a frequency divider, and an injection-locked oscillator to reduce the phase noise and increase the bandwidth.
  • a voltage-controlled oscillator including an active circuit that amplifies power and a tuning circuit that roughly determines an oscillation frequency.
  • Noise in the circuit of the voltage controlled oscillator is amplified by the active circuit, and the amplified power is input to the tuning circuit.
  • the oscillation frequency is a frequency at which the phase becomes 0 ° by reciprocation between the active circuit and the tuning circuit, but the tuning circuit includes a distributed constant resonator, and the slope of the phase of the active circuit is small.
  • the oscillation frequency is determined by the resonator. Thereafter, the power is returned to the active circuit, and the power is further amplified to perform an oscillation operation.
  • the tuning circuit includes a varactor diode.
  • the resonance frequency of the tuning circuit changes and the oscillation frequency can be controlled.
  • the electrical length of the distributed constant resonator is increased and the phase noise is reduced. From the above, the phase noise is improved by increasing the load Q of the tuning circuit (see, for example, Patent Document 1 below).
  • the phase noise is traded off with the oscillation frequency bandwidth or the tuning sensitivity.
  • the improvement amount of the low phase noise is limited by the frequency bandwidth.
  • the present invention has been made to solve the above problems, and an object of the present invention is to provide a high-frequency oscillation source capable of obtaining low phase noise characteristics regardless of the bandwidth even in a wide frequency bandwidth. To do.
  • a high frequency oscillation source includes a low phase noise oscillator that oscillates at a predetermined frequency, a frequency divider that divides the output frequency of the low phase noise oscillator, and an output wave that is divided by the frequency divider. And an injection locking oscillator that oscillates in synchronization with the injection wave, and a control unit that controls the output frequency of the frequency divider to be an integral fraction of the oscillation frequency of the injection locking oscillator.
  • control means controls the output frequency of the frequency divider to be an integral fraction of the oscillation frequency of the injection-locked oscillator, even if the oscillation frequency bandwidth of the injection-locked oscillator is widened,
  • the phase noise of the injection-locked oscillator is synchronized with the phase noise of the low-phase noise oscillator (the same value when converted to the same frequency), and there is an effect that low phase noise characteristics can be obtained regardless of the bandwidth.
  • Embodiment 1 of this invention It is a block diagram which shows the high frequency oscillation source by Embodiment 1 of this invention. It is a block diagram which shows the other high frequency oscillation source by Embodiment 1 of this invention. It is a block diagram which shows the other high frequency oscillation source by Embodiment 1 of this invention. It is a block diagram which shows the high frequency oscillation source by Embodiment 2 of this invention. It is a block diagram which shows the high frequency oscillation source by Embodiment 3 of this invention. It is a block diagram which shows the other high frequency oscillation source by Embodiment 3 of this invention. It is a block diagram which shows the other high frequency oscillation source by Embodiment 3 of this invention. It is a block diagram which shows the other high frequency oscillation source by Embodiment 3 of this invention. It is a block diagram which shows the other high frequency oscillation source by Embodiment 3 of this invention. It is a block diagram which shows the other high frequency oscillation source by Embodiment 3 of this invention
  • FIG. 1 is a block diagram showing a high-frequency oscillation source according to Embodiment 1 of the present invention.
  • the low phase noise oscillator 1 oscillates at a predetermined frequency.
  • the frequency divider 2 divides the frequency of the output wave of the low phase noise oscillator 1.
  • the injection-locked oscillator 3 uses the output wave divided by the frequency divider 2 as an injection wave, and oscillates in synchronization with the injection wave.
  • the control means 4 controls the frequency division number of the frequency divider 2 so that the output frequency of the frequency divider 2 becomes 1 / integer of the oscillation frequency of the injection locked oscillator 3.
  • the frequency divider 2 When the output wave from the low phase noise oscillator 1 is input to the frequency divider 2, the frequency is divided according to the frequency division number of the frequency divider 2 and injected into the injection locking oscillator 3.
  • the injection-locked oscillator 3 synchronizes with the frequency and phase noise of the injected radio wave as long as the frequency of the injected radio wave can be synchronized.
  • the frequency that can be synchronized varies in detail depending on the Q value, the injected power, and the like, but is mainly the same frequency, a divided frequency such as a 1/2 harmonic, a 1/3 harmonic, or the like.
  • the oscillation frequency of the injection locking oscillator 3 is set so that a desired frequency is output from the injection locking oscillator 3, and the frequency division number of the frequency divider 2 is controlled from the ratio with the output frequency of the low phase noise oscillator 1.
  • the frequency division number of the frequency divider 2 is controlled from the ratio with the output frequency of the low phase noise oscillator 1.
  • the frequency division number N may be a fraction.
  • the frequency division number N can be set to a fraction by applying a control method similar to the fractional control performed in the phase locked loop (PLL) to the frequency divider.
  • PLL phase locked loop
  • the oscillation frequency of the injection locked oscillator 3 needs to be a frequency that can be synchronized with the injection frequency. Therefore, when the injection locking range is narrow, the frequency of the frequency division is controlled and the oscillation frequency of the injection locking oscillator 3 can be synchronized with the injection frequency (the voltage between the terminals of the varactor diode included in the injection locking oscillator 3). Change by control etc.) As shown in FIG. 2, by providing the injection locking oscillator 3 with the coupler 31 and the PLL 32, it is possible to easily set the oscillation frequency of the injection locking oscillator 3 within a range that can be synchronized with the injection frequency. . When the injection locking range is wide, the oscillation frequency of the injection locking oscillator 3 may be changed so as to be more easily synchronized with the injection frequency along with the control of the frequency division number, but can be synchronized without changing. You can leave it as it is.
  • the injection-locked oscillator 3 When there is no injection wave, the injection-locked oscillator 3 tries to obtain an oscillation frequency in a wide band, but the phase noise becomes higher (deteriorates) than the value obtained on the right side of the equation (3). If there is an injection wave using the low phase noise oscillator 1 as a reference source, low phase noise characteristics can be obtained regardless of the bandwidth. Further, since the low phase noise oscillator 1 may have a narrow band, it is easy to obtain low phase noise characteristics.
  • the low phase noise oscillator 1 that oscillates at a predetermined frequency
  • the frequency divider 2 that divides the output frequency of the low phase noise oscillator 1
  • the frequency divider 2 that divides the output frequency of the low phase noise oscillator 1
  • the frequency-divided output wave is used as an injection wave
  • the injection-locked oscillator 3 that oscillates in synchronization with the injection wave, and the output frequency of the frequency divider 2 are divided so as to be an integral fraction of the oscillation frequency of the injection-locked oscillator 3.
  • a control means 4 for controlling the frequency division number of the frequency divider 2.
  • the control means 4 controls the frequency division number of the frequency divider 2 so that the output frequency of the frequency divider 2 becomes an integral fraction of the oscillation frequency of the injection locked oscillator 3.
  • the phase noise of the injection locked oscillator 3 is synchronized with the phase noise of the low phase noise oscillator 1 (the same value when converted to the same frequency), and the characteristics of the low phase noise regardless of the bandwidth. Can be obtained.
  • FIG. 3 is a block diagram showing another high frequency oscillation source according to Embodiment 1 of the present invention.
  • the frequency divider 2 is constituted by a cascade connection of a control frequency divider 21 and a pre-frequency divider 22, and the pre-frequency divider 22 divides the frequency of the output wave of the low phase noise oscillator 1.
  • the control frequency divider 21 divides the frequency of the output wave of the pre-frequency divider 22.
  • Other configurations are the same as those in FIG.
  • the output wave of the low phase noise oscillator 1 is input to the frequency divider 2, but the output wave of the low phase noise oscillator 1 is input to the pre-divider (prescaler) 22 as shown in FIG.
  • the signal may be input to the control frequency divider 21.
  • a filter or the like may be provided so that a radio wave of an unnecessary frequency is not output from the output wave of the frequency divider 2, and the pass band of the filter may be variable.
  • FIG. 4 is a block diagram showing a high-frequency oscillation source according to Embodiment 2 of the present invention.
  • the control means 5 controls the phase of the output wave of the low phase noise oscillator 1 so that the output frequency of the frequency divider 2 becomes 1 / integer of the oscillation frequency of the injection locked oscillator 3.
  • Other configurations are the same as those in FIG.
  • the frequency divider 2 When the output wave from the low phase noise oscillator 1 is input to the frequency divider 2, the frequency is divided according to the frequency division number of the frequency divider 2 and injected into the injection locking oscillator 3.
  • the injection-locked oscillator 3 synchronizes with the frequency and phase noise of the injected radio wave as long as the frequency of the injected radio wave can be synchronized.
  • the frequency that can be synchronized varies in detail depending on the Q value, the injected power, and the like, but is mainly the same frequency, a divided frequency such as a 1/2 harmonic, a 1/3 harmonic, or the like.
  • the oscillation frequency of the injection locking oscillator 3 is set so that a desired frequency is output from the injection locking oscillator 3, and the frequency division number of the frequency divider 2 is determined from the ratio with the output frequency of the low phase noise oscillator 1.
  • the low phase noise oscillator 1 that oscillates at a predetermined frequency
  • the frequency divider 2 that divides the output frequency of the low phase noise oscillator 1
  • the frequency divider 2 that divides the output frequency of the low phase noise oscillator 1
  • the frequency-divided output wave is used as an injection wave
  • the injection-locked oscillator 3 that oscillates in synchronization with the injection wave and the output frequency of the frequency divider 2 are low so that the output frequency is an integral fraction of the oscillation frequency of the injection-locked oscillator 3.
  • control means 5 for controlling the phase of the output wave of the phase noise oscillator 1.
  • the control means 5 controls the phase of the output wave of the low phase noise oscillator 1 so that the output frequency of the frequency divider 2 becomes an integral number of the oscillation frequency of the injection locked oscillator 3. Even if the frequency bandwidth is widened, the phase noise of the injection-locked oscillator 3 is synchronized with the phase noise of the low-phase noise oscillator 1 (the same value when converted to the same frequency), and low phase noise regardless of the bandwidth. Characteristics can be obtained.
  • FIG. 5 is a block diagram showing a high-frequency oscillation source according to Embodiment 3 of the present invention.
  • the low phase noise oscillator 1 oscillates at a predetermined frequency.
  • the injection locking oscillator 3 oscillates in synchronization with the injection wave.
  • the mixer 6 mixes the output wave of the low phase noise oscillator 1 and the output wave of the injection locked oscillator 3.
  • the band pass filter 7 filters the output wave of the mixer 6.
  • the frequency divider 2 divides the frequency of the output wave partially fed back from the output wave of the bandpass filter 7 and outputs it as an injection wave to the injection locking oscillator 3.
  • the control means 4 controls the frequency division number of the frequency divider 2 so that the output frequency of the frequency divider 2 becomes 1 / integer of the oscillation frequency of the injection locked oscillator 3.
  • the output wave from the injection-locked oscillator 3 and the output wave from the low-phase noise oscillator 1 are input to the mixer 6, and the sum of the output frequency of the injection-locked oscillator 3 and the output frequency of the low-phase noise oscillator 1 by mixing (frequency mixing). And the difference frequency are output.
  • the difference frequency is selected and output by the bandpass filter 7, and a part thereof is input to the frequency divider 2.
  • the input radio wave of the bandpass filter 7 is frequency-divided according to the frequency dividing number of the frequency divider 2 and injected into the injection locking oscillator 3.
  • the injection-locked oscillator 3 synchronizes with the frequency and phase noise of the injected radio wave as long as the frequency of the injected radio wave can be synchronized.
  • the phase noise after injection locking is a value corresponding to the phase noise of the low phase noise oscillator 1.
  • the frequency that can be synchronized varies in detail depending on the Q value, the injected power, and the like, but is mainly the same frequency, a divided frequency such as a 1/2 harmonic, a 1/3 harmonic, or the like.
  • the oscillation frequency of the injection locked oscillator 3 is set so that a desired frequency is obtained, and the frequency dividing number of the frequency divider 2 is set by the control means 4 from the ratio to the output frequency of the band pass filter 7.
  • the control means 4 from the ratio to the output frequency of the band pass filter 7.
  • the oscillation frequency of the injection locked oscillator 3 needs to be a frequency that can be synchronized with the injection frequency. Therefore, when the injection locking range is narrow, the frequency of the frequency division is controlled and the oscillation frequency of the injection locking oscillator 3 can be synchronized with the injection frequency (the voltage between the terminals of the varactor diode included in the injection locking oscillator 3). Change by control etc.) When the injection locking range is wide, the oscillation frequency of the injection locking oscillator 3 may be changed so as to be more easily synchronized with the injection frequency along with the control of the frequency division number, but synchronization is possible without changing. You can leave it as it is.
  • phase noise is the same when the oscillation frequency of the injection locked oscillator 3 and the oscillation frequency of the low phase noise oscillator 1 are considered to be the same. In other words, it can be said that they are synchronized.
  • the injection-locked oscillator 3 increases (deteriorates) the phase noise when trying to obtain an oscillation frequency in a wide band.
  • the low-phase noise oscillator 1 is used as a reference source. When there is an injection wave, low phase noise characteristics can be obtained regardless of the bandwidth. Further, since the low phase noise oscillator 1 may have a narrow band, it is easy to obtain low phase noise characteristics.
  • Mixer 6 that mixes the output wave of injection-locked oscillator 3
  • bandpass filter 7 that filters the output wave of mixer 6, and the output frequency of bandpass filter 7 are frequency-divided and injected into injection-locked oscillator 3 as an injection wave
  • a frequency divider 2 for output and a control means 4 for controlling the frequency division number of the frequency divider 2 so that the output frequency of the frequency divider 2 is an integral fraction of the oscillation frequency of the injection locking oscillator 3 are provided. .
  • the control means 4 controls the frequency division number of the frequency divider 2 so that the output frequency of the frequency divider 2 becomes an integral fraction of the oscillation frequency of the injection locked oscillator 3. Even if the width is widened, the phase noise of the injection locked oscillator 3 is synchronized with the phase noise of the low phase noise oscillator 1 (the same value when converted to the same frequency), and the characteristics of the low phase noise regardless of the bandwidth. Can be obtained. In addition, by using a part of the output of the bandpass filter 7 as the output of the high-frequency oscillation source, it is possible to obtain an output with an expanded specific band.
  • FIG. 6 is a block diagram showing another high-frequency oscillation source according to Embodiment 3 of the present invention.
  • the pre-divider 22 divides the frequency of the output wave partially fed back from the output wave of the bandpass filter 7.
  • the control frequency divider 21 divides the frequency of the output wave of the pre-frequency divider 22 and outputs it as an injection wave to the injection locking oscillator 3.
  • Other configurations are the same as those in FIG.
  • FIG. 7 is a block diagram showing another high-frequency oscillation source according to Embodiment 3 of the present invention.
  • the output of the bandpass filter 7 is the difference frequency in FIG. 5
  • the output of the low phase noise oscillator 1 is included even if the output of the bandpass filter 8 is the sum frequency as shown in FIG. Therefore, the same effect can be obtained.
  • the difference frequency a frequency lower than the output frequency of the injection locking oscillator 3 is output, but the ratio band is wide.
  • the ratio band is narrower than the output frequency of the injection locking oscillator 3. A high frequency is output.
  • FIG. 8 is a block diagram showing another high-frequency oscillation source according to Embodiment 3 of the present invention.
  • a coupler 9 is provided between the injection locking oscillator 3 and the mixer 6 and branches and outputs the output wave of the injection locking oscillator 3.
  • Other configurations are the same as those in FIG.
  • a coupler 9 for branching and outputting the output wave of the injection locking oscillator 3 may be provided, or the output wave of the injection locking oscillator 3 may be taken out.
  • the pass band of the band pass filter 7 may be variable.
  • a filter or the like may be provided so that an unnecessary frequency radio wave is not output from the output wave of the frequency divider 2, and the pass band of the filter may be variable.
  • FIG. 9 is a block diagram showing a high-frequency oscillation source according to Embodiment 4 of the present invention.
  • the control means 5 controls the phase of the output wave of the low phase noise oscillator 1 so that the output frequency of the frequency divider 2 becomes 1 / integer of the oscillation frequency of the injection locked oscillator 3.
  • Other configurations are the same as those in FIG.
  • FIG. 4 shows that a high-frequency oscillation source with low phase noise can be obtained by controlling the phase of the output wave of the low phase noise oscillator 1 in the configuration corresponding to the first embodiment.
  • a high frequency oscillation source with low phase noise can be obtained in the configuration corresponding to the third embodiment.
  • Mixer 6 that mixes the output wave of injection-locked oscillator 3
  • bandpass filter 7 that filters the output wave of mixer 6, and the output frequency of bandpass filter 7 are frequency-divided and injected into injection-locked oscillator 3 as an injection wave
  • a frequency divider 2 for outputting and a control means 5 for controlling the phase of the output wave of the low phase noise oscillator 1 so that the output frequency of the frequency divider 2 is an integral fraction of the oscillation frequency of the injection locked oscillator 3.
  • the control means 5 controls the phase of the output wave of the low phase noise oscillator 1 so that the output frequency of the frequency divider 2 becomes an integral number of the oscillation frequency of the injection locked oscillator 3. Even if the frequency bandwidth is widened, the phase noise of the injection-locked oscillator 3 is synchronized with the phase noise of the low-phase noise oscillator 1 (the same value when converted to the same frequency), and low phase noise regardless of the bandwidth. Characteristics can be obtained.
  • the high-frequency oscillation source of the present invention has a frequency divider that divides the output frequency of the low-phase noise oscillator, and an output wave divided by the frequency divider is an injection wave, and is synchronized with the injection wave. Since it is configured to include an injection-locked oscillator that oscillates and a control unit that controls the output frequency of the frequency divider to be an integral fraction of the oscillation frequency of the injection-locked oscillator, Suitable for use in communication and radar systems used.

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

In the present invention, control means (4) controls demultiplied frequencies from a frequency demultiplier (2) so that the output frequency from the frequency demultiplier (2) becomes a specified fraction of an integer of the oscillation frequency of an injection-locked oscillator (3), and therefore the phase noise in the injection-locked oscillator (3) is synchronized with the phase noise in a low-phase noise oscillator (1) (the values being equal when both are expressed as equal frequencies) even when the oscillation frequency bandwidth of the injection-locked oscillator (3) is widened, and it is possible to obtain a high frequency oscillation source characterized by low-phase noise regardless of the bandwidth.

Description

高周波発振源High frequency oscillation source
　この発明は、低位相雑音発振器、分周器および注入同期発振器を用い、低位相雑音化および広帯域化される高周波発振源に関する。 The present invention relates to a high-frequency oscillation source that uses a low-phase noise oscillator, a frequency divider, and an injection-locked oscillator to reduce the phase noise and increase the bandwidth.
　従来の高周波発振源として、電力を増幅する能動回路と、発振周波数を概略決定する同調回路とを備えた電圧制御発振器がある。 As a conventional high-frequency oscillation source, there is a voltage-controlled oscillator including an active circuit that amplifies power and a tuning circuit that roughly determines an oscillation frequency.
　次に動作について説明する。
　電圧制御発振器の回路内の雑音が能動回路により増幅され、その増幅された電力は同調回路に入力される。
　発振周波数は、能動回路と同調回路の往復によって位相が０°となる周波数であるが、同調回路は、分布定数共振器を備えており、能動回路の位相の傾きが小さいため、主に分布定数共振器によって発振周波数が決定される。
　その後、電力は能動回路に戻され、電力はさらに増幅されることで発振動作を行う。 Next, the operation will be described.
Noise in the circuit of the voltage controlled oscillator is amplified by the active circuit, and the amplified power is input to the tuning circuit.
The oscillation frequency is a frequency at which the phase becomes 0 ° by reciprocation between the active circuit and the tuning circuit, but the tuning circuit includes a distributed constant resonator, and the slope of the phase of the active circuit is small. The oscillation frequency is determined by the resonator.
Thereafter, the power is returned to the active circuit, and the power is further amplified to perform an oscillation operation.
　同調回路は、バラクタダイオードを備えており、バラクタダイオードの端子間電圧を制御することで、同調回路の共振周波数が変化し、発振周波数を制御することができる。
　また、分布定数共振器の電気長を発振周波数で３／４波長以上とすることで、同調回路の負荷Qを高くし、位相雑音を低減している。
　以上から、同調回路の負荷Ｑを高くすることで、位相雑音が改善されることになる（例えば、下記特許文献１参照）。 The tuning circuit includes a varactor diode. By controlling the voltage between the terminals of the varactor diode, the resonance frequency of the tuning circuit changes and the oscillation frequency can be controlled.
Further, by setting the electrical length of the distributed constant resonator to 3/4 wavelength or more at the oscillation frequency, the load Q of the tuning circuit is increased and the phase noise is reduced.
From the above, the phase noise is improved by increasing the load Q of the tuning circuit (see, for example, Patent Document 1 below).
特開平９－２３８０２５号公報Japanese Patent Laid-Open No. 9-238025
　従来の高周波発振源は以上のように構成されているので、負荷Ｑを高くすることで低位相雑音化を図るが、位相雑音は、発振周波数帯域幅または同調感度とトレードオフの関係にあるため、周波数帯域幅によって低位相雑音化の改善量が制限される課題があった。 Since the conventional high-frequency oscillation source is configured as described above, the phase noise is traded off with the oscillation frequency bandwidth or the tuning sensitivity. However, there is a problem that the improvement amount of the low phase noise is limited by the frequency bandwidth.
　この発明は、以上のような課題を解消するためになされたものであり、広い周波数帯域幅においても、帯域幅に関わらず低位相雑音の特性が得られる高周波発振源を提供することを目的とする。 The present invention has been made to solve the above problems, and an object of the present invention is to provide a high-frequency oscillation source capable of obtaining low phase noise characteristics regardless of the bandwidth even in a wide frequency bandwidth. To do.
　この発明に係る高周波発振源は、所定の周波数で発振する低位相雑音発振器と、低位相雑音発振器の出力周波数を分周する分周器と、分周器により分周された出力波を注入波とし、該注入波に同期して発振する注入同期発振器と、分周器の出力周波数が注入同期発振器の発振周波数の整数分の１となるように制御する制御手段とを備える。 A high frequency oscillation source according to the present invention includes a low phase noise oscillator that oscillates at a predetermined frequency, a frequency divider that divides the output frequency of the low phase noise oscillator, and an output wave that is divided by the frequency divider. And an injection locking oscillator that oscillates in synchronization with the injection wave, and a control unit that controls the output frequency of the frequency divider to be an integral fraction of the oscillation frequency of the injection locking oscillator.
　この発明によれば、制御手段は、分周器の出力周波数が注入同期発振器の発振周波数の整数分の１となるように制御するため、注入同期発振器の発振周波数帯域幅を広帯域化しても、注入同期発振器の位相雑音は低位相雑音発振器の位相雑音と同期し（同じ周波数として換算したときに同じ値となる）、帯域幅に関わらず低位相雑音の特性を得ることができる効果がある。 According to this invention, since the control means controls the output frequency of the frequency divider to be an integral fraction of the oscillation frequency of the injection-locked oscillator, even if the oscillation frequency bandwidth of the injection-locked oscillator is widened, The phase noise of the injection-locked oscillator is synchronized with the phase noise of the low-phase noise oscillator (the same value when converted to the same frequency), and there is an effect that low phase noise characteristics can be obtained regardless of the bandwidth.
この発明の実施の形態１による高周波発振源を示す構成図である。It is a block diagram which shows the high frequency oscillation source by Embodiment 1 of this invention. この発明の実施の形態１による他の高周波発振源を示す構成図である。It is a block diagram which shows the other high frequency oscillation source by Embodiment 1 of this invention. この発明の実施の形態１による他の高周波発振源を示す構成図である。It is a block diagram which shows the other high frequency oscillation source by Embodiment 1 of this invention. この発明の実施の形態２による高周波発振源を示す構成図である。It is a block diagram which shows the high frequency oscillation source by Embodiment 2 of this invention. この発明の実施の形態３による高周波発振源を示す構成図である。It is a block diagram which shows the high frequency oscillation source by Embodiment 3 of this invention. この発明の実施の形態３による他の高周波発振源を示す構成図である。It is a block diagram which shows the other high frequency oscillation source by Embodiment 3 of this invention. この発明の実施の形態３による他の高周波発振源を示す構成図である。It is a block diagram which shows the other high frequency oscillation source by Embodiment 3 of this invention. この発明の実施の形態３による他の高周波発振源を示す構成図である。It is a block diagram which shows the other high frequency oscillation source by Embodiment 3 of this invention. この発明の実施の形態４による高周波発振源を示す構成図である。It is a block diagram which shows the high frequency oscillation source by Embodiment 4 of this invention.
　以下、この発明をより詳細に説明するために、この発明を実施するための形態について、添付の図面に従って説明する。
実施の形態１．
　図１はこの発明の実施の形態１による高周波発振源を示す構成図である。
　図において、低位相雑音発振器１は、所定の周波数で発振する。
　分周器２は、低位相雑音発振器１の出力波の周波数を分周する。
　注入同期発振器３は、分周器２により分周された出力波を注入波とし、注入波に同期して発振する。
　制御手段４は、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように分周器２の分周数を制御する。 Hereinafter, in order to explain the present invention in more detail, modes for carrying out the present invention will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
1 is a block diagram showing a high-frequency oscillation source according to Embodiment 1 of the present invention.
In the figure, the low phase noise oscillator 1 oscillates at a predetermined frequency.
The frequency divider 2 divides the frequency of the output wave of the low phase noise oscillator 1.
The injection-locked oscillator 3 uses the output wave divided by the frequency divider 2 as an injection wave, and oscillates in synchronization with the injection wave.
The control means 4 controls the frequency division number of the frequency divider 2 so that the output frequency of the frequency divider 2 becomes 1 / integer of the oscillation frequency of the injection locked oscillator 3.
　次に動作について説明する。
　低位相雑音発振器１からの出力波は、分周器２に入力されると、分周器２の分周数に応じて分周され、注入同期発振器３に注入される。
　注入同期発振器３は、注入された電波が同期可能な範囲の周波数であれば、注入された電波の周波数および位相雑音と同期する。
　同期可能な周波数は、詳細にはＱ値や注入電力などに依存して範囲が異なるが、主には同じ周波数や１／２倍波、１／３倍波などの分周波などである。
　従って、所望の周波数が注入同期発振器３から出力されるように、注入同期発振器３の発振周波数を設定し、低位相雑音発振器１の出力周波数との比から分周器２の分周数を制御手段４により設定することで、所望の周波数において低位相雑音の特性が得られる。 Next, the operation will be described.
When the output wave from the low phase noise oscillator 1 is input to the frequency divider 2, the frequency is divided according to the frequency division number of the frequency divider 2 and injected into the injection locking oscillator 3.
The injection-locked oscillator 3 synchronizes with the frequency and phase noise of the injected radio wave as long as the frequency of the injected radio wave can be synchronized.
The frequency that can be synchronized varies in detail depending on the Q value, the injected power, and the like, but is mainly the same frequency, a divided frequency such as a 1/2 harmonic, a 1/3 harmonic, or the like.
Therefore, the oscillation frequency of the injection locking oscillator 3 is set so that a desired frequency is output from the injection locking oscillator 3, and the frequency division number of the frequency divider 2 is controlled from the ratio with the output frequency of the low phase noise oscillator 1. By setting by means 4, low phase noise characteristics can be obtained at a desired frequency.
Figure JPOXMLDOC01-appb-I000001

Figure JPOXMLDOC01-appb-I000002

Figure JPOXMLDOC01-appb-I000003
Figure JPOXMLDOC01-appb-I000001

Figure JPOXMLDOC01-appb-I000002

Figure JPOXMLDOC01-appb-I000003
　式(1)の表記を変えると次式(2)となる。
Figure JPOXMLDOC01-appb-I000004

Figure JPOXMLDOC01-appb-I000005
　このとき、分周数Nは分数であっても良い。
　分周数Nを分数にするには、例えば、位相同期回路（ＰＬＬ）で行われるフラクショナル制御と同様な制御方法を分周器に適用することで実現可能である。 Changing the notation of equation (1) yields the following equation (2).
Figure JPOXMLDOC01-appb-I000004

Figure JPOXMLDOC01-appb-I000005
At this time, the frequency division number N may be a fraction.
For example, the frequency division number N can be set to a fraction by applying a control method similar to the fractional control performed in the phase locked loop (PLL) to the frequency divider.
　ただし、注入同期発振器３の発振周波数は、注入周波数と同期できる周波数であることが必要である。
　そのため、注入同期範囲が狭い場合は、分周数の制御とともに、注入同期発振器３の発振周波数を注入周波数と同期できる範囲となるように（注入同期発振器３に含まれるバラクタダイオードの端子間電圧の制御などにより）変化させる。
　これは、図２のように、注入同期発振器３にカプラ３１とＰＬＬ３２を備えることで、容易に注入同期発振器３の発振周波数を注入周波数と同期できる範囲となるように設定することが可能である。
　注入同期範囲が広い場合は、分周数の制御とともに、注入同期発振器３の発振周波数を注入周波数とより同期しやすい範囲となるように変化させても良いが、変化させなくても同期可能であればそのままでも良い。 However, the oscillation frequency of the injection locked oscillator 3 needs to be a frequency that can be synchronized with the injection frequency.
Therefore, when the injection locking range is narrow, the frequency of the frequency division is controlled and the oscillation frequency of the injection locking oscillator 3 can be synchronized with the injection frequency (the voltage between the terminals of the varactor diode included in the injection locking oscillator 3). Change by control etc.)
As shown in FIG. 2, by providing the injection locking oscillator 3 with the coupler 31 and the PLL 32, it is possible to easily set the oscillation frequency of the injection locking oscillator 3 within a range that can be synchronized with the injection frequency. .
When the injection locking range is wide, the oscillation frequency of the injection locking oscillator 3 may be changed so as to be more easily synchronized with the injection frequency along with the control of the frequency division number, but can be synchronized without changing. You can leave it as it is.
Figure JPOXMLDOC01-appb-I000006

Figure JPOXMLDOC01-appb-I000007

Figure JPOXMLDOC01-appb-I000008
Figure JPOXMLDOC01-appb-I000006

Figure JPOXMLDOC01-appb-I000007

Figure JPOXMLDOC01-appb-I000008
　注入波がない場合、注入同期発振器３は広帯域に発振周波数を得ようとすると、位相雑音が式(3)の右辺で得られる値よりも高くなって（劣化して）しまうが、前記のように低位相雑音発振器１を基準源とした注入波がある場合は、帯域幅に関わらず低位相雑音の特性が得られる。
　また、低位相雑音発振器１は、狭帯域であって良いので、低位相雑音の特性が得られやすい。 When there is no injection wave, the injection-locked oscillator 3 tries to obtain an oscillation frequency in a wide band, but the phase noise becomes higher (deteriorates) than the value obtained on the right side of the equation (3). If there is an injection wave using the low phase noise oscillator 1 as a reference source, low phase noise characteristics can be obtained regardless of the bandwidth.
Further, since the low phase noise oscillator 1 may have a narrow band, it is easy to obtain low phase noise characteristics.
　以上のように、この実施の形態１によれば、所定の周波数で発振する低位相雑音発振器１と、低位相雑音発振器１の出力周波数を分周する分周器２と、分周器２により分周された出力波を注入波とし、注入波に同期して発振する注入同期発振器３と、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように分周器２の分周数を制御する制御手段４とを備えた。
　制御手段４は、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように分周器２の分周数を制御するため、注入同期発振器３の発振周波数帯域幅を広帯域化しても、注入同期発振器３の位相雑音は低位相雑音発振器１の位相雑音と同期し（同じ周波数として換算したときに同じ値となる）、帯域幅に関わらず低位相雑音の特性を得ることができる。 As described above, according to the first embodiment, the low phase noise oscillator 1 that oscillates at a predetermined frequency, the frequency divider 2 that divides the output frequency of the low phase noise oscillator 1, and the frequency divider 2 The frequency-divided output wave is used as an injection wave, and the injection-locked oscillator 3 that oscillates in synchronization with the injection wave, and the output frequency of the frequency divider 2 are divided so as to be an integral fraction of the oscillation frequency of the injection-locked oscillator 3. And a control means 4 for controlling the frequency division number of the frequency divider 2.
The control means 4 controls the frequency division number of the frequency divider 2 so that the output frequency of the frequency divider 2 becomes an integral fraction of the oscillation frequency of the injection locked oscillator 3. Even if the width is widened, the phase noise of the injection locked oscillator 3 is synchronized with the phase noise of the low phase noise oscillator 1 (the same value when converted to the same frequency), and the characteristics of the low phase noise regardless of the bandwidth. Can be obtained.
　図３はこの発明の実施の形態１による他の高周波発振源を示す構成図である。
　図において、分周器２は、制御用分周器２１と前置分周器２２の縦続接続で構成され、前置分周器２２は、低位相雑音発振器１の出力波の周波数を分周し、制御用分周器２１は、前置分周器２２の出力波の周波数を分周する。
　その他の構成については、図１と同様である。
　図１では、低位相雑音発振器１の出力波を分周器２に入力したが、図２のように、低位相雑音発振器１の出力波を前置分周器（プリスケーラ）２２に入力して低い周波数に変換した後に、制御用分周器２１に入力しても良い。このとき、分周数NはN＝Nc×Mpとなり、Ncが制御手段４によって制御される。 FIG. 3 is a block diagram showing another high frequency oscillation source according to Embodiment 1 of the present invention.
In the figure, the frequency divider 2 is constituted by a cascade connection of a control frequency divider 21 and a pre-frequency divider 22, and the pre-frequency divider 22 divides the frequency of the output wave of the low phase noise oscillator 1. The control frequency divider 21 divides the frequency of the output wave of the pre-frequency divider 22.
Other configurations are the same as those in FIG.
In FIG. 1, the output wave of the low phase noise oscillator 1 is input to the frequency divider 2, but the output wave of the low phase noise oscillator 1 is input to the pre-divider (prescaler) 22 as shown in FIG. After conversion to a low frequency, the signal may be input to the control frequency divider 21. At this time, the frequency division number N is N = N c × M p , and N c is controlled by the control means 4.
　また、分周器２の出力波から不要な周波数の電波が出力されないように、フィルタなどを備えても良く、さらに、そのフィルタの通過帯域が可変であっても良い。 In addition, a filter or the like may be provided so that a radio wave of an unnecessary frequency is not output from the output wave of the frequency divider 2, and the pass band of the filter may be variable.
実施の形態２．
　図４はこの発明の実施の形態２による高周波発振源を示す構成図である。
　図において、制御手段５は、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように低位相雑音発振器１の出力波の位相を制御する。
　その他の構成については、図１と同様である。 Embodiment 2. FIG.
4 is a block diagram showing a high-frequency oscillation source according to Embodiment 2 of the present invention.
In the figure, the control means 5 controls the phase of the output wave of the low phase noise oscillator 1 so that the output frequency of the frequency divider 2 becomes 1 / integer of the oscillation frequency of the injection locked oscillator 3.
Other configurations are the same as those in FIG.
　次に動作について説明する。
　低位相雑音発振器１からの出力波は、分周器２に入力されると、分周器２の分周数に応じて分周され、注入同期発振器３に注入される。
　注入同期発振器３は、注入された電波が同期可能な範囲の周波数であれば、注入された電波の周波数および位相雑音と同期する。
　同期可能な周波数は、詳細にはＱ値や注入電力などに依存して範囲が異なるが、主には同じ周波数や１／２倍波、１／３倍波などの分周波などである。
　従って、所望の周波数が注入同期発振器３から出力されるように、注入同期発振器３の発振周波数を設定し、低位相雑音発振器１の出力周波数との比から、分周器２の分周数の設定と制御手段５による低位相雑音発振器１の出力波の位相の制御を行うことで、所望の周波数において低位相雑音の特性が得られる。 Next, the operation will be described.
When the output wave from the low phase noise oscillator 1 is input to the frequency divider 2, the frequency is divided according to the frequency division number of the frequency divider 2 and injected into the injection locking oscillator 3.
The injection-locked oscillator 3 synchronizes with the frequency and phase noise of the injected radio wave as long as the frequency of the injected radio wave can be synchronized.
The frequency that can be synchronized varies in detail depending on the Q value, the injected power, and the like, but is mainly the same frequency, a divided frequency such as a 1/2 harmonic, a 1/3 harmonic, or the like.
Accordingly, the oscillation frequency of the injection locking oscillator 3 is set so that a desired frequency is output from the injection locking oscillator 3, and the frequency division number of the frequency divider 2 is determined from the ratio with the output frequency of the low phase noise oscillator 1. By controlling the phase of the output wave of the low phase noise oscillator 1 by the setting and control means 5, the characteristics of low phase noise can be obtained at a desired frequency.
Figure JPOXMLDOC01-appb-I000009

Figure JPOXMLDOC01-appb-I000010

Figure JPOXMLDOC01-appb-I000011

Figure JPOXMLDOC01-appb-I000012
Figure JPOXMLDOC01-appb-I000009

Figure JPOXMLDOC01-appb-I000010

Figure JPOXMLDOC01-appb-I000011

Figure JPOXMLDOC01-appb-I000012
　以上のように、この実施の形態２によれば、所定の周波数で発振する低位相雑音発振器１と、低位相雑音発振器１の出力周波数を分周する分周器２と、分周器２により分周された出力波を注入波とし、注入波に同期して発振する注入同期発振器３と、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように低位相雑音発振器１の出力波の位相を制御する制御手段５とを備えた。
　制御手段５は、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように低位相雑音発振器１の出力波の位相を制御するため、注入同期発振器３の発振周波数帯域幅を広帯域化しても、注入同期発振器３の位相雑音は低位相雑音発振器１の位相雑音と同期し（同じ周波数として換算したときに同じ値となる）、帯域幅に関わらず低位相雑音の特性を得ることができる。 As described above, according to the second embodiment, the low phase noise oscillator 1 that oscillates at a predetermined frequency, the frequency divider 2 that divides the output frequency of the low phase noise oscillator 1, and the frequency divider 2 The frequency-divided output wave is used as an injection wave, and the injection-locked oscillator 3 that oscillates in synchronization with the injection wave and the output frequency of the frequency divider 2 are low so that the output frequency is an integral fraction of the oscillation frequency of the injection-locked oscillator 3. And control means 5 for controlling the phase of the output wave of the phase noise oscillator 1.
The control means 5 controls the phase of the output wave of the low phase noise oscillator 1 so that the output frequency of the frequency divider 2 becomes an integral number of the oscillation frequency of the injection locked oscillator 3. Even if the frequency bandwidth is widened, the phase noise of the injection-locked oscillator 3 is synchronized with the phase noise of the low-phase noise oscillator 1 (the same value when converted to the same frequency), and low phase noise regardless of the bandwidth. Characteristics can be obtained.
実施の形態３．
　図５はこの発明の実施の形態３による高周波発振源を示す構成図である。
　図において、低位相雑音発振器１は、所定の周波数で発振する。
　注入同期発振器３は、注入波に同期して発振する。
　ミクサ６は、低位相雑音発振器１の出力波と注入同期発振器３の出力波を混合する。
　バンドパスフィルタ７は、ミクサ６の出力波をろ波する。
　分周器２は、バンドパスフィルタ７の出力波のうちの一部帰還された出力波の周波数を分周して、注入同期発振器３に注入波として出力する。
　制御手段４は、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように分周器２の分周数を制御する。 Embodiment 3 FIG.
5 is a block diagram showing a high-frequency oscillation source according to Embodiment 3 of the present invention.
In the figure, the low phase noise oscillator 1 oscillates at a predetermined frequency.
The injection locking oscillator 3 oscillates in synchronization with the injection wave.
The mixer 6 mixes the output wave of the low phase noise oscillator 1 and the output wave of the injection locked oscillator 3.
The band pass filter 7 filters the output wave of the mixer 6.
The frequency divider 2 divides the frequency of the output wave partially fed back from the output wave of the bandpass filter 7 and outputs it as an injection wave to the injection locking oscillator 3.
The control means 4 controls the frequency division number of the frequency divider 2 so that the output frequency of the frequency divider 2 becomes 1 / integer of the oscillation frequency of the injection locked oscillator 3.
　次に動作について説明する。
　注入同期発振器３の出力波と低位相雑音発振器１からの出力波は、ミクサ６に入力され、ミキシング（周波数混合）により、注入同期発振器３の出力周波数と低位相雑音発振器１の出力周波数の和の周波数および差の周波数が出力される。
　このうち、差の周波数がバンドパスフィルタ７により選択されて出力され、その一部が分周器２に入力される。
　入力されたバンドパスフィルタ７の電波は、分周器２の分周数に応じて分周され、注入同期発振器３に注入される。
　注入同期発振器３は、注入された電波が同期可能な範囲の周波数であれば、注入された電波の周波数および位相雑音と同期する。
　このとき、注入された電波に低位相雑音発振器１の出力が含まれているため、注入同期後の位相雑音は低位相雑音発振器１の位相雑音に相当する値となる。
　同期可能な周波数は、詳細にはＱ値や注入電力などに依存して範囲が異なるが、主には同じ周波数や１／２倍波、１／３倍波などの分周波などである。
　従って、所望の周波数が得られるように、注入同期発振器３の発振周波数を設定し、バンドパスフィルタ７の出力周波数との比から分周器２の分周数を制御手段４により設定することで、所望の周波数において低位相雑音の特性が得られる。 Next, the operation will be described.
The output wave from the injection-locked oscillator 3 and the output wave from the low-phase noise oscillator 1 are input to the mixer 6, and the sum of the output frequency of the injection-locked oscillator 3 and the output frequency of the low-phase noise oscillator 1 by mixing (frequency mixing). And the difference frequency are output.
Among these, the difference frequency is selected and output by the bandpass filter 7, and a part thereof is input to the frequency divider 2.
The input radio wave of the bandpass filter 7 is frequency-divided according to the frequency dividing number of the frequency divider 2 and injected into the injection locking oscillator 3.
The injection-locked oscillator 3 synchronizes with the frequency and phase noise of the injected radio wave as long as the frequency of the injected radio wave can be synchronized.
At this time, since the injected radio wave includes the output of the low phase noise oscillator 1, the phase noise after injection locking is a value corresponding to the phase noise of the low phase noise oscillator 1.
The frequency that can be synchronized varies in detail depending on the Q value, the injected power, and the like, but is mainly the same frequency, a divided frequency such as a 1/2 harmonic, a 1/3 harmonic, or the like.
Therefore, the oscillation frequency of the injection locked oscillator 3 is set so that a desired frequency is obtained, and the frequency dividing number of the frequency divider 2 is set by the control means 4 from the ratio to the output frequency of the band pass filter 7. Thus, low phase noise characteristics can be obtained at a desired frequency.
Figure JPOXMLDOC01-appb-I000013

Figure JPOXMLDOC01-appb-I000014

Figure JPOXMLDOC01-appb-I000015

Figure JPOXMLDOC01-appb-I000016

Figure JPOXMLDOC01-appb-I000017
Figure JPOXMLDOC01-appb-I000013

Figure JPOXMLDOC01-appb-I000014

Figure JPOXMLDOC01-appb-I000015

Figure JPOXMLDOC01-appb-I000016

Figure JPOXMLDOC01-appb-I000017
　式(6)、(7)の表記を変えると次式(8)となる。
Figure JPOXMLDOC01-appb-I000018

Figure JPOXMLDOC01-appb-I000019
When the expressions (6) and (7) are changed, the following expression (8) is obtained.
Figure JPOXMLDOC01-appb-I000018

Figure JPOXMLDOC01-appb-I000019
　ただし、注入同期発振器３の発振周波数は、注入周波数と同期できる周波数であることが必要である。
　そのため、注入同期範囲が狭い場合は、分周数の制御とともに、注入同期発振器３の発振周波数を注入周波数と同期できる範囲となるように（注入同期発振器３に含まれるバラクタダイオードの端子間電圧の制御などにより）変化させる。
　注入同期範囲が広い場合は、分周数の制御とともに、注入同期発振器３の発振周波数をより注入周波数と同期しやすい範囲となるように変化させても良いが、変化させなくても同期可能であればそのままでも良い。 However, the oscillation frequency of the injection locked oscillator 3 needs to be a frequency that can be synchronized with the injection frequency.
Therefore, when the injection locking range is narrow, the frequency of the frequency division is controlled and the oscillation frequency of the injection locking oscillator 3 can be synchronized with the injection frequency (the voltage between the terminals of the varactor diode included in the injection locking oscillator 3). Change by control etc.)
When the injection locking range is wide, the oscillation frequency of the injection locking oscillator 3 may be changed so as to be more easily synchronized with the injection frequency along with the control of the frequency division number, but synchronization is possible without changing. You can leave it as it is.
Figure JPOXMLDOC01-appb-I000020

Figure JPOXMLDOC01-appb-I000021

Figure JPOXMLDOC01-appb-I000022

Figure JPOXMLDOC01-appb-I000023
　これは、注入同期発振器３の発振周波数と低位相雑音発振器１の発振周波数を同じとして考えれば、同じ位相雑音であることを示している。
　つまり同期していると言える。
Figure JPOXMLDOC01-appb-I000020

Figure JPOXMLDOC01-appb-I000021

Figure JPOXMLDOC01-appb-I000022

Figure JPOXMLDOC01-appb-I000023
This indicates that the phase noise is the same when the oscillation frequency of the injection locked oscillator 3 and the oscillation frequency of the low phase noise oscillator 1 are considered to be the same.
In other words, it can be said that they are synchronized.
　注入波がない場合、注入同期発振器３は、広帯域に発振周波数を得ようとすると、位相雑音が高くなって（劣化して）しまうが、前記のように低位相雑音発振器１を基準源とした注入波がある場合は、帯域幅に関わらず低位相雑音の特性が得られる。
　また、低位相雑音発振器１は、狭帯域であって良いので、低位相雑音の特性が得られやすい。 When there is no injection wave, the injection-locked oscillator 3 increases (deteriorates) the phase noise when trying to obtain an oscillation frequency in a wide band. However, as described above, the low-phase noise oscillator 1 is used as a reference source. When there is an injection wave, low phase noise characteristics can be obtained regardless of the bandwidth.
Further, since the low phase noise oscillator 1 may have a narrow band, it is easy to obtain low phase noise characteristics.
　また、バンドパスフィルタ７の出力の一部が高周波発振源の出力であれば、周波数は低くなるものの、比帯域は大きくなる。
Figure JPOXMLDOC01-appb-I000024

Figure JPOXMLDOC01-appb-I000025
If a part of the output of the bandpass filter 7 is the output of the high-frequency oscillation source, the frequency becomes low but the specific band becomes large.
Figure JPOXMLDOC01-appb-I000024

Figure JPOXMLDOC01-appb-I000025
　以上のように、この実施の形態３によれば、所定の周波数で発振する低位相雑音発振器１と、注入波に同期して発振する注入同期発振器３と、低位相雑音発振器１の出力波と注入同期発振器３の出力波を混合するミクサ６と、ミクサ６の出力波をろ波するバンドパスフィルタ７と、バンドパスフィルタ７の出力周波数を分周して、注入同期発振器３に注入波として出力する分周器２と、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように分周器２の分周数を制御する制御手段４とを備えた。
　制御手段４は、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように分周器２の分周数を制御するため、注入同期発振器３の発振周波数帯域幅を広帯域化しても、注入同期発振器３の位相雑音は低位相雑音発振器１の位相雑音と同期し（同じ周波数として換算したときに同じ値となる）、帯域幅に関わらず低位相雑音の特性を得ることができる。
　また、バンドパスフィルタ７の出力の一部を高周波発振源の出力とすることで、比帯域を拡大した出力を得ることができる。 As described above, according to the third embodiment, the low-phase noise oscillator 1 that oscillates at a predetermined frequency, the injection-locked oscillator 3 that oscillates in synchronization with the injection wave, and the output wave of the low-phase noise oscillator 1 Mixer 6 that mixes the output wave of injection-locked oscillator 3, bandpass filter 7 that filters the output wave of mixer 6, and the output frequency of bandpass filter 7 are frequency-divided and injected into injection-locked oscillator 3 as an injection wave A frequency divider 2 for output and a control means 4 for controlling the frequency division number of the frequency divider 2 so that the output frequency of the frequency divider 2 is an integral fraction of the oscillation frequency of the injection locking oscillator 3 are provided. .
The control means 4 controls the frequency division number of the frequency divider 2 so that the output frequency of the frequency divider 2 becomes an integral fraction of the oscillation frequency of the injection locked oscillator 3. Even if the width is widened, the phase noise of the injection locked oscillator 3 is synchronized with the phase noise of the low phase noise oscillator 1 (the same value when converted to the same frequency), and the characteristics of the low phase noise regardless of the bandwidth. Can be obtained.
In addition, by using a part of the output of the bandpass filter 7 as the output of the high-frequency oscillation source, it is possible to obtain an output with an expanded specific band.
　図６はこの発明の実施の形態３による他の高周波発振源を示す構成図である。
　図において、前置分周器２２は、バンドパスフィルタ７の出力波のうちの一部帰還された出力波の周波数を分周する。
　また、制御用分周器２１は、前置分周器２２の出力波の周波数を分周して、注入同期発振器３に注入波として出力する。
　その他の構成については、図５と同様である。
Figure JPOXMLDOC01-appb-I000026
FIG. 6 is a block diagram showing another high-frequency oscillation source according to Embodiment 3 of the present invention.
In the figure, the pre-divider 22 divides the frequency of the output wave partially fed back from the output wave of the bandpass filter 7.
The control frequency divider 21 divides the frequency of the output wave of the pre-frequency divider 22 and outputs it as an injection wave to the injection locking oscillator 3.
Other configurations are the same as those in FIG.
Figure JPOXMLDOC01-appb-I000026
　図７はこの発明の実施の形態３による他の高周波発振源を示す構成図である。
　図において、図５では、バンドパスフィルタ７の出力を差の周波数としたが、図７のように、バンドパスフィルタ８の出力を和の周波数としても、低位相雑音発振器１の出力を含んでいるため、同様の効果が得られる。
　ただし、差の周波数の場合は、注入同期発振器３の出力周波数より低い周波数が出力されるが比帯域が広く、和の周波数の場合は、注入同期発振器３の出力周波数より比帯域が狭くなるが高い周波数が出力される。
Figure JPOXMLDOC01-appb-I000027
FIG. 7 is a block diagram showing another high-frequency oscillation source according to Embodiment 3 of the present invention.
In FIG. 5, although the output of the bandpass filter 7 is the difference frequency in FIG. 5, the output of the low phase noise oscillator 1 is included even if the output of the bandpass filter 8 is the sum frequency as shown in FIG. Therefore, the same effect can be obtained.
However, in the case of the difference frequency, a frequency lower than the output frequency of the injection locking oscillator 3 is output, but the ratio band is wide. In the case of the sum frequency, the ratio band is narrower than the output frequency of the injection locking oscillator 3. A high frequency is output.
Figure JPOXMLDOC01-appb-I000027
　図８はこの発明の実施の形態３による他の高周波発振源を示す構成図である。
　図において、カプラ９は、注入同期発振器３とミクサ６との間に設けられ、注入同期発振器３の出力波を分岐出力する。
　その他の構成については、図５と同様である。
　図８のように、注入同期発振器３の出力波を分岐出力するカプラ９を設けても良く、注入同期発振器３の出力波を取り出しても良い。 FIG. 8 is a block diagram showing another high-frequency oscillation source according to Embodiment 3 of the present invention.
In the figure, a coupler 9 is provided between the injection locking oscillator 3 and the mixer 6 and branches and outputs the output wave of the injection locking oscillator 3.
Other configurations are the same as those in FIG.
As shown in FIG. 8, a coupler 9 for branching and outputting the output wave of the injection locking oscillator 3 may be provided, or the output wave of the injection locking oscillator 3 may be taken out.
　また、バンドパスフィルタ７の通過帯域が可変であっても良い。 Further, the pass band of the band pass filter 7 may be variable.
　さらに、分周器２の出力波から不要な周波数の電波が出力されないように、フィルタなどを備えても良く、さらに、そのフィルタの通過帯域が可変であっても良い。 Furthermore, a filter or the like may be provided so that an unnecessary frequency radio wave is not output from the output wave of the frequency divider 2, and the pass band of the filter may be variable.
実施の形態４．
　図９はこの発明の実施の形態４による高周波発振源を示す構成図である。
　図において、制御手段５は、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように低位相雑音発振器１の出力波の位相を制御する。
　その他の構成については、図５と同様である。 Embodiment 4 FIG.
FIG. 9 is a block diagram showing a high-frequency oscillation source according to Embodiment 4 of the present invention.
In the figure, the control means 5 controls the phase of the output wave of the low phase noise oscillator 1 so that the output frequency of the frequency divider 2 becomes 1 / integer of the oscillation frequency of the injection locked oscillator 3.
Other configurations are the same as those in FIG.
　次に動作について説明する。
　図４では、前記実施の形態１に対応した構成において、低位相雑音発振器１の出力波の位相を制御することで、低位相雑音の高周波発振源が得られることを示したが、図９のように、前記実施の形態３に対応した構成においても同様に、低位相雑音発振器１の出力波の位相を制御することで、低位相雑音の高周波発振源が得られる。 Next, the operation will be described.
FIG. 4 shows that a high-frequency oscillation source with low phase noise can be obtained by controlling the phase of the output wave of the low phase noise oscillator 1 in the configuration corresponding to the first embodiment. As described above, in the configuration corresponding to the third embodiment as well, by controlling the phase of the output wave of the low phase noise oscillator 1, a high frequency oscillation source with low phase noise can be obtained.
　以上のように、この実施の形態４によれば、所定の周波数で発振する低位相雑音発振器１と、注入波に同期して発振する注入同期発振器３と、低位相雑音発振器１の出力波と注入同期発振器３の出力波を混合するミクサ６と、ミクサ６の出力波をろ波するバンドパスフィルタ７と、バンドパスフィルタ７の出力周波数を分周して、注入同期発振器３に注入波として出力する分周器２と、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように低位相雑音発振器１の出力波の位相を制御する制御手段５とを備えた。
　制御手段５は、分周器２の出力周波数が注入同期発振器３の発振周波数の整数分の１となるように低位相雑音発振器１の出力波の位相を制御するため、注入同期発振器３の発振周波数帯域幅を広帯域化しても、注入同期発振器３の位相雑音は低位相雑音発振器１の位相雑音と同期し（同じ周波数として換算したときに同じ値となる）、帯域幅に関わらず低位相雑音の特性を得ることができる。 As described above, according to the fourth embodiment, the low-phase noise oscillator 1 that oscillates at a predetermined frequency, the injection-locked oscillator 3 that oscillates in synchronization with the injection wave, and the output wave of the low-phase noise oscillator 1 Mixer 6 that mixes the output wave of injection-locked oscillator 3, bandpass filter 7 that filters the output wave of mixer 6, and the output frequency of bandpass filter 7 are frequency-divided and injected into injection-locked oscillator 3 as an injection wave A frequency divider 2 for outputting, and a control means 5 for controlling the phase of the output wave of the low phase noise oscillator 1 so that the output frequency of the frequency divider 2 is an integral fraction of the oscillation frequency of the injection locked oscillator 3. Prepared.
The control means 5 controls the phase of the output wave of the low phase noise oscillator 1 so that the output frequency of the frequency divider 2 becomes an integral number of the oscillation frequency of the injection locked oscillator 3. Even if the frequency bandwidth is widened, the phase noise of the injection-locked oscillator 3 is synchronized with the phase noise of the low-phase noise oscillator 1 (the same value when converted to the same frequency), and low phase noise regardless of the bandwidth. Characteristics can be obtained.
　なお、本願発明はその発明の範囲内において、各実施の形態の自由な組み合わせ、あるいは各実施の形態の任意の構成要素の変形、もしくは各実施の形態において任意の構成要素の省略が可能である。 In the present invention, within the scope of the invention, any combination of the embodiments, or any modification of any component in each embodiment, or omission of any component in each embodiment is possible. .
　以上のように、本発明の高周波発振源は、低位相雑音発振器の出力周波数を分周する分周器と、分周器により分周された出力波を注入波とし、注入波に同期して発振する注入同期発振器と、分周器の出力周波数が注入同期発振器の発振周波数の整数分の１となるように制御する制御手段とを備えるように構成したので、マイクロ波帯およびミリ波帯で用いられる通信およびレーダシステムに用いるのに適している。 As described above, the high-frequency oscillation source of the present invention has a frequency divider that divides the output frequency of the low-phase noise oscillator, and an output wave divided by the frequency divider is an injection wave, and is synchronized with the injection wave. Since it is configured to include an injection-locked oscillator that oscillates and a control unit that controls the output frequency of the frequency divider to be an integral fraction of the oscillation frequency of the injection-locked oscillator, Suitable for use in communication and radar systems used.
　１　低位相雑音発振器、２　分周器、３　注入同期発振器、４，５　制御手段、６　ミクサ、７，８　バンドパスフィルタ、９、３１　カプラ、２１　制御用分周器、２２　前置分周器、３２　位相同期回路（ＰＬＬ）。 1 low phase noise oscillator, 2 frequency divider, 3 injection locked oscillator, 4, 5 control means, 6 mixer, 7, 8 band pass filter, 9, 31 coupler, 21 control frequency divider, 22 pre-frequency divider 32 Phase-locked loop (PLL).

Claims (14)

  1. 　所定の周波数で発振する低位相雑音発振器と、
    　前記低位相雑音発振器の出力周波数を分周する分周器と、
    　前記分周器により分周された出力波を注入波とし、該注入波に同期して発振する注入同期発振器と、
    　前記分周器の出力周波数が前記注入同期発振器の発振周波数の整数分の１となるように制御する制御手段とを備えた高周波発振源。     A low phase noise oscillator that oscillates at a predetermined frequency;
    A frequency divider for dividing the output frequency of the low phase noise oscillator;
    An injection-locked oscillator that oscillates in synchronization with the injection wave, using the output wave divided by the frequency divider as an injection wave;
    And a control means for controlling the output frequency of the frequency divider to be an integral fraction of the oscillation frequency of the injection-locked oscillator.
  2. 　制御手段は、
    　分周器の出力周波数が注入同期発振器の発振周波数の整数分の１となるように該分周器の分周数を制御することを特徴とする請求項１記載の高周波発振源。     The control means
    2. The high-frequency oscillation source according to claim 1, wherein the frequency division number of the frequency divider is controlled so that the output frequency of the frequency divider becomes an integral fraction of the oscillation frequency of the injection locked oscillator.
  3. 　制御手段は、
    　分周器の出力周波数が注入同期発振器の発振周波数の整数分の１となるように低位相雑音発振器の出力波の位相を制御することを特徴とする請求項１記載の高周波発振源。     The control means
    2. The high-frequency oscillation source according to claim 1, wherein the phase of the output wave of the low-phase noise oscillator is controlled so that the output frequency of the frequency divider becomes 1 / integer of the oscillation frequency of the injection locked oscillator.
  4. 　分周器は、
    　低位相雑音発振器の出力周波数を分周する前置分周器と、
    　前記前置分周器の出力周波数を分周して、注入同期発振器に注入波として出力する制御用分周器とを備えたことを特徴とする請求項１記載の高周波発振源。     The divider is
    A pre-frequency divider that divides the output frequency of the low phase noise oscillator;
    2. The high frequency oscillation source according to claim 1, further comprising a control frequency divider that divides the output frequency of the pre-frequency divider and outputs the frequency as an injection wave to an injection-locked oscillator.
  5. 　制御手段により分周器の分周数を変化させて、当該高周波発振源の出力周波数を変化させたことを特徴とする請求項２記載の高周波発振源。 3. The high frequency oscillation source according to claim 2, wherein the output frequency of the high frequency oscillation source is changed by changing the frequency division number of the frequency divider by the control means.
  6. 　制御手段により低位相雑音発振器の出力波の位相を変化させて、当該高周波発振源の出力周波数を変化させたことを特徴とする請求項３記載の高周波発振源。 4. The high frequency oscillation source according to claim 3, wherein the output frequency of the high frequency oscillation source is changed by changing the phase of the output wave of the low phase noise oscillator by the control means.
  7. 　所定の周波数で発振する低位相雑音発振器と、
    　注入波に同期して発振する注入同期発振器と、
    　前記低位相雑音発振器の出力波と前記注入同期発振器の出力波を混合するミクサと、
    　前記ミクサの出力波をろ波するフィルタと、
    　前記フィルタの出力周波数を分周して、前記注入同期発振器に注入波として出力する分周器と、
    　前記分周器の出力周波数が前記注入同期発振器の発振周波数の整数分の１となるように制御する制御手段とを備えた高周波発振源。     A low phase noise oscillator that oscillates at a predetermined frequency;
    An injection-locked oscillator that oscillates in synchronization with the injection wave;
    A mixer for mixing the output wave of the low phase noise oscillator and the output wave of the injection locked oscillator;
    A filter for filtering the output wave of the mixer;
    A frequency divider that divides the output frequency of the filter and outputs the frequency as an injection wave to the injection-locked oscillator;
    And a control means for controlling the output frequency of the frequency divider to be an integral fraction of the oscillation frequency of the injection-locked oscillator.
  8. 　制御手段は、
    　分周器の出力周波数が注入同期発振器の発振周波数の整数分の１となるように該分周器の分周数を制御することを特徴とする請求項７記載の高周波発振源。     The control means
    8. The high-frequency oscillation source according to claim 7, wherein the frequency division number of the frequency divider is controlled so that the output frequency of the frequency divider becomes an integral fraction of the oscillation frequency of the injection locked oscillator.
  9. 　制御手段は、
    　分周器の出力周波数が注入同期発振器の発振周波数の整数分の１となるように低位相雑音発振器の出力波の位相を制御することを特徴とする請求項７記載の高周波発振源。     The control means
    8. The high-frequency oscillation source according to claim 7, wherein the phase of the output wave of the low phase noise oscillator is controlled so that the output frequency of the frequency divider becomes 1 / integer of the oscillation frequency of the injection locked oscillator.
  10. 　分周器は、
    　フィルタの出力周波数を分周する前置分周器と、
    　前記前置分周器の出力周波数を分周して、注入同期発振器に注入波として出力する制御用分周器とを備えたことを特徴とする請求項７記載の高周波発振源。     The divider is
    A pre-divider that divides the output frequency of the filter;
    8. The high frequency oscillation source according to claim 7, further comprising a control frequency divider that divides the output frequency of the pre-frequency divider and outputs the frequency as an injection wave to an injection locking oscillator.
  11. 　注入同期発振器と低位相雑音発振器の出力周波数の差の周波数をフィルタの通過帯域としたことを特徴とする請求項７記載の高周波発振源。 The high frequency oscillation source according to claim 7, wherein the frequency of the difference between the output frequencies of the injection locked oscillator and the low phase noise oscillator is used as a pass band of the filter.
  12. 　注入同期発振器と低位相雑音発振器の出力周波数の和の周波数をフィルタの通過帯域としたことを特徴とする請求項７記載の高周波発振源。 8. The high-frequency oscillation source according to claim 7, wherein the sum of the output frequencies of the injection-locked oscillator and the low-phase noise oscillator is used as a filter pass band.
  13. 　制御手段により分周器の分周数を変化させて、当該高周波発振源の出力周波数を変化させたことを特徴とする請求項８記載の高周波発振源。 9. The high frequency oscillation source according to claim 8, wherein the output frequency of the high frequency oscillation source is changed by changing the frequency division number of the frequency divider by the control means.
  14. 　制御手段により低位相雑音発振器の出力波の位相を変化させて、当該高周波発振源の出力周波数を変化させたことを特徴とする請求項９記載の高周波発振源。 10. The high frequency oscillation source according to claim 9, wherein the output frequency of the high frequency oscillation source is changed by changing the phase of the output wave of the low phase noise oscillator by the control means.
PCT/JP2013/050030 2013-01-07 2013-01-07 High frequency oscillation source WO2014106899A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014555411A JPWO2014106899A1 (en) 2013-01-07 2013-01-07 High frequency oscillation source
PCT/JP2013/050030 WO2014106899A1 (en) 2013-01-07 2013-01-07 High frequency oscillation source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/050030 WO2014106899A1 (en) 2013-01-07 2013-01-07 High frequency oscillation source

Publications (1)

Publication Number Publication Date
WO2014106899A1 true WO2014106899A1 (en) 2014-07-10

Family

ID=51062222

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/050030 WO2014106899A1 (en) 2013-01-07 2013-01-07 High frequency oscillation source

Country Status (2)

Country Link
JP (1) JPWO2014106899A1 (en)
WO (1) WO2014106899A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200106387A1 (en) * 2018-09-27 2020-04-02 Infineon Technologies Ag Calibrating an injection locked oscillator
CN111095797A (en) * 2017-08-29 2020-05-01 德克萨斯仪器股份有限公司 Self-injection locking for low power low phase noise oscillator

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6247212A (en) * 1985-08-27 1987-02-28 Hitachi Denshi Ltd Synthesizer device
JPH025622A (en) * 1988-06-23 1990-01-10 Nippon Denso Co Ltd Pll frequency synthesizer
JP2002217727A (en) * 2001-01-22 2002-08-02 Sharp Corp Injection synchronized oscillator, oscillator and high frequency communication unit using them
JP2003298416A (en) * 2002-04-03 2003-10-17 Sharp Corp High frequency signal receiver
JP2005057626A (en) * 2003-08-07 2005-03-03 Sharp Corp Injection-locked oscillator and high-frequency communication equipment
JP2007531404A (en) * 2004-03-22 2007-11-01 モビウス マイクロシステムズ，インク． Monolithic clock generator and timing / frequency reference
JP2009017096A (en) * 2007-07-03 2009-01-22 Mitsubishi Electric Corp High-frequency oscillation source

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6934731B1 (en) * 2000-05-25 2005-08-23 Broadband Innovations, Inc. Rational frequency synthesizers employing digital commutators
JP5213789B2 (en) * 2009-04-21 2013-06-19 三菱電機株式会社 High frequency oscillation source
GB2483898B (en) * 2010-09-24 2015-07-22 Cambridge Silicon Radio Ltd Injection-locked oscillator
JP2012204883A (en) * 2011-03-23 2012-10-22 Asahi Kasei Electronics Co Ltd Accumulator type fractional n-pll synthesizer and method of controlling the same
WO2012132847A1 (en) * 2011-03-31 2012-10-04 国立大学法人東京工業大学 Injection-locked type frequency-locked oscillator
JP5701149B2 (en) * 2011-05-24 2015-04-15 三菱電機株式会社 High frequency oscillation source

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6247212A (en) * 1985-08-27 1987-02-28 Hitachi Denshi Ltd Synthesizer device
JPH025622A (en) * 1988-06-23 1990-01-10 Nippon Denso Co Ltd Pll frequency synthesizer
JP2002217727A (en) * 2001-01-22 2002-08-02 Sharp Corp Injection synchronized oscillator, oscillator and high frequency communication unit using them
JP2003298416A (en) * 2002-04-03 2003-10-17 Sharp Corp High frequency signal receiver
JP2005057626A (en) * 2003-08-07 2005-03-03 Sharp Corp Injection-locked oscillator and high-frequency communication equipment
JP2007531404A (en) * 2004-03-22 2007-11-01 モビウス マイクロシステムズ，インク． Monolithic clock generator and timing / frequency reference
JP2009017096A (en) * 2007-07-03 2009-01-22 Mitsubishi Electric Corp High-frequency oscillation source

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111095797A (en) * 2017-08-29 2020-05-01 德克萨斯仪器股份有限公司 Self-injection locking for low power low phase noise oscillator
CN111095797B (en) * 2017-08-29 2023-10-20 德克萨斯仪器股份有限公司 Self injection locking for low power low phase noise oscillators
US20200106387A1 (en) * 2018-09-27 2020-04-02 Infineon Technologies Ag Calibrating an injection locked oscillator
US10855296B2 (en) * 2018-09-27 2020-12-01 Infineon Technologies Ag Calibrating an injection locked oscillator

Also Published As

Publication number Publication date
JPWO2014106899A1 (en) 2017-01-19

Similar Documents

Publication Publication Date Title
TWI528725B (en) Wideband frequency synthesizer and frequency synthesizing method thereof
JP2011019186A (en) Clock signal distributing device
US8736326B1 (en) Frequency synthesizer and frequency synthesis method thereof
TW201316676A (en) Injection-locked frequency divider
JP6463467B2 (en) Synthesizer
US9077592B2 (en) Low phase-noise indirect frequency synthesizer
JP2001127554A (en) Voltage controlled oscillator
WO2014106899A1 (en) High frequency oscillation source
JP6366523B2 (en) Frequency synthesizer
US9843334B2 (en) Frequency synthesizer
CN113726334A (en) S-band low-phase-noise low-spurious fine-stepping frequency source component and using method
JP5843592B2 (en) Self-injection synchronous oscillator
JP2005109608A (en) Pll frequency synthesizer
JP4890198B2 (en) High frequency oscillation source
JP5634343B2 (en) Injection-locked oscillator
JP4884322B2 (en) High frequency oscillation source
US8502574B2 (en) Device and method for generating a signal of parametrizable frequency
JP6584330B2 (en) Frequency synthesizer
JP4828376B2 (en) High frequency oscillation source
JP6753132B2 (en) Signal source
JP6062841B2 (en) Injection type phase locked loop
JP6344257B2 (en) Self-injection synchronous oscillator
JP2015099970A (en) Injection-locked oscillator
JP2014135670A (en) PLL frequency synthesizer
JPS62141819A (en) Microwave band frequency synthesizer

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13869883

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2014555411

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13869883

Country of ref document: EP

Kind code of ref document: A1