WO2002017485A1 - Compensateur de phase $g(p)/2 - Google Patents
Compensateur de phase $g(p)/2 Download PDFInfo
- Publication number
- WO2002017485A1 WO2002017485A1 PCT/JP2000/005578 JP0005578W WO0217485A1 WO 2002017485 A1 WO2002017485 A1 WO 2002017485A1 JP 0005578 W JP0005578 W JP 0005578W WO 0217485 A1 WO0217485 A1 WO 0217485A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signals
- circuit
- signal
- output
- phase
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/16—Networks for phase shifting
- H03H11/22—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/14—Balanced arrangements
- H03D7/1425—Balanced arrangements with transistors
- H03D7/1433—Balanced arrangements with transistors using bipolar transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/14—Balanced arrangements
- H03D7/1425—Balanced arrangements with transistors
- H03D7/1441—Balanced arrangements with transistors using field-effect transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/18—Networks for phase shifting
- H03H7/21—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output
Definitions
- the present invention relates to a ⁇ / 2 phase shifter, and more particularly, to a ⁇ / 2 phase shifter that can stably maintain the phase difference between output signals at ⁇ / 2 by eliminating the effects of element variation and parasitic capacitance in a circuit.
- a phase shifter Related to a phase shifter. '' Background technology
- ⁇ -no 2 phase shifter 40 receives input signal S GI ⁇ and outputs output signals S IG a and S IGb having mutually different ⁇ / 2 phases.
- the signals When the signals are represented by vectors, they correspond to a pair of diagonal lines of a rhombus formed by the vectors corresponding to the first and second intermediate signals, respectively, so that the first output signal and the second output signal Phase difference can be set to exactly 7 ⁇ 2.
- phase difference between the output signals of the ⁇ / 2 phase shifter 2 is obtained. Can be maintained exactly at ⁇ 2.
- the resistance elements R 3 and R 4 and the NPN transistors Q5, Q6, Q7, Q8 , And current sources S 3 and S 4 are provided.
- the resistance elements R 3 and R 4 correspond to the resistance elements R 1 and R 2 already described, and the NPN transistors Q 5, Q 6, Q 7 and Q 8 are NPN transistors Q 1, Q 2, Q 3, Each corresponds to Q4.
- Current sources S3 and S4 correspond to current sources S1 and S2, respectively. Current: The current supply capabilities of the sources Sl, S2, S3 and S4 are equally designed.
- the input dynamic range of the adder circuit 12 is expanded, and even if the amplitude of the signals SIG a, / SIG a, * SIG b, / SI Gb input to the adder circuit 12 increases.
- a desired addition operation can be performed.
- current sources S1a to S4b are arranged corresponding to transistors Q1 to Q8, respectively, to improve the linearity of transistor operation.
- Resistive elements R12 to R15 for expanding the input dynamic range may be further provided.
- the current supply capacities of the current sources S1a to S4b are designed to be equal.
- a resistor R12 is connected between the emitters of the transistors Q1 and Q2, and a resistor R13 is connected between the emitters of the transistors Q3 and Q4.
- a resistor R14 is connected between the emitters of the transistors Q5 and Q6, and a resistor R15 is connected between the emitters of the transistors Q7 and Q8.
- the input limiter circuit 14 and the low-pass filter 16 are provided corresponding to the signals SIGb, ZSIGb, SIGa, and STGa output from the phase shift circuit 10, respectively.
- input limiter circuit 14 includes resistor elements R 5 and R 6 coupled between the power supply node and nodes N 4 and N 5, respectively, and nodes N 4 and N 5 and node N.
- 10 includes NPN transistors Q 9 and Q 10 electrically coupled to each other, and a current source S 5 coupled between node N 6 and ground No Bye.
- SI Gb and / SI Gb output from the phase shift circuit 10 are input to the bases of the transistors Q 9 and Q 10, respectively.
- Analog type phase circuit 10 outputs
- the signals SI Gb and ZS I Gb are sinusoidal.
- low-pass filter 16 includes a power supply node and nodes N 9 and N
- NPN transistor Q13 coupled between nodes N9 and N11
- NPN transistor Q coupled between nodes N10 and N12.
- a capacitor C1 coupled between nodes N9 and N1_0
- a resistive element R9 coupled between nodes Ni1 and N12
- nodes N11 and N12 and a ground node and current sources S8 and S9 respectively coupled between The signals S I Gb and Z S I Gb converted into a rectangular wave by the input limiter circuit 14 are input to the bases of the transistors Q 13 and Q 14, respectively.
- Mouth pass filter 16 is also connected to power supply nodes and nodes N1 3 and N14.
- NPN transistors Q 15 and Q 16 electrically coupled between, respectively, and current sources S 10 and S 11 coupled between nodes N 13 and N 14 and the ground node, respectively. Having. The bases of transistors Q15 and Q16 are coupled to nodes N9 and N10, respectively.
- Nodes N 9 and N 10 are coupled to the bases of transistors Q 15 and Q 16 driven by the supply potential V cc, so that nodes N 13 and N 14 pass through the limiter circuit While maintaining the phase of the generated signals SIG b and / SIG b, an analog signal whose rising and falling edges are blunted is output.
- phase difference correction circuit 31 includes amplitude adjustment circuit 13 described in FIG. 5, addition circuit 22, and output limiter circuit 18 for adjusting the amplitude of the output signal of the addition circuit. .
- power B calculation circuit 22 further includes a signal buffer unit 23 in addition to the configuration of addition circuit 12 shown in FIG. 4A.
- the transistors Q 17 to Q 20 amplify the output signals SI GOa, ZS I GOa, SI GOb, and / SIGO b generated at the nodes No 1 to No 4 respectively, and output the output limiter circuit 18 at the subsequent stage.
- the addition circuit 22 has a function of amplifying the output signal obtained by the addition operation in addition to the addition operation function of the addition circuit 12 shown in FIG. 4 in consideration of the output limiter circuit 18 arranged at the subsequent stage. It is further provided.
- the addition circuit 22 can be configured by combining the circuit configuration of the addition circuit 12 shown in FIGS. 4B to 4D with the signal buffer and buffer unit 23.
- FIG. 10 representatively shows a configuration of the output limiter circuit 18 corresponding to the output signals SIG ⁇ ⁇ ⁇ a and ZSIGOa among the output signals of the adder circuit 22.
- output limiter 18 further includes an amplitude adjustment section 19 in addition to the same configuration as input limit circuit 14.
- Amplitude adjuster 19 is connected between resistor elements R10 and R11 connected between the power supply node and nodes N19 and N20, respectively, and between nodes N19 and N20 and node N21, respectively.
- the amplitude adjuster 19 is provided to further reduce the amplitude difference between the output signals of the output calimitter circuit 18. Therefore, if the amplitude difference between the signals output to nodes N7 and N8 is sufficiently small by the same configuration as input limit circuit 14, amplitude adjustment unit 19 can be omitted.
- the phase difference between the corresponding signals is set to ⁇ 2. Further, signals having the same amplitude can be obtained.
- the digital phase shift circuit 15 is not an analog type phase shift circuit using an RC element described in the related art, but a digital type phase shift circuit using a flip-flop.
- digital phase shifter 15 includes D-type flip-flops 17a and 17b.
- D-type flip-flop 17b operates in response to the rising edge of clock signal CLK
- D-type flip-flop 1a operates in response to the falling edge of clock signal CLK.
- TO is twice the period of the clock signal CLK.
- the D terminal of the D-type flip-flop 17b that is, the signal level of the signal ZSIGA is reflected on the signal SIGB.
- the signal level of the signal SIGb is reflected on the signal level of SIGa.
- phase of signal SIGa is delayed by a half cycle of clock signal CLK as compared with signal SIGB. Since this phase delay is indicated by exactly Z4, the phase difference between the signals SIGa and SIGB becomes ⁇ / 2.
- ZSIGa and ZSIGb which are inverted signals of signals SIGa and SIGB are also output from digital phase shift circuit 15.
- the configuration of the digital phase shifter 1.5 is not limited to the configuration shown in FIG. 12, and any circuit configuration that can obtain the same output signal as a digital signal can be adopted. it can.
- the phase difference correction circuit 41 includes the low-pass filter 16, the addition circuit 22, and the output limiter circuit 18.
- the low-pass filter 16 blunts the rising and falling edges of the group of rectangular digital signals output from the digital phase shifter into sinusoidal waves.
- the output of the low-pass filter 16 is added by the adding circuit 22.
- the output signals SI GOa, SI GOb, / SI GO a and SI GOb of the adder circuit 2 2 The amplitude is made uniform by passing through the mitter circuit 18.
- the phase difference between signals SIGO a and SIGO b output from the ⁇ / 2 phase shifter is set to ⁇ / 2, and the amplitudes of both are equal.
- the ⁇ / 2 phase shifter according to the present invention can be applied to a quadrature modulator used in a digital mobile communication terminal.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Networks Using Active Elements (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020027005109A KR20020040903A (ko) | 2000-08-21 | 2000-08-21 | π/2 이상기 |
JP2002522063A JP3933575B2 (ja) | 2000-08-21 | 2000-08-21 | π/2移相器 |
CN00814527A CN1379928A (zh) | 2000-08-21 | 2000-08-21 | π/2移相器 |
PCT/JP2000/005578 WO2002017485A1 (fr) | 2000-08-21 | 2000-08-21 | Compensateur de phase $g(p)/2 |
US10/110,203 US6815993B1 (en) | 2000-08-21 | 2000-08-21 | π/2 phase shifter |
EP00953528A EP1317065A1 (en) | 2000-08-21 | 2000-08-21 | Pi/2 phase shifter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2000/005578 WO2002017485A1 (fr) | 2000-08-21 | 2000-08-21 | Compensateur de phase $g(p)/2 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002017485A1 true WO2002017485A1 (fr) | 2002-02-28 |
Family
ID=11736376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/005578 WO2002017485A1 (fr) | 2000-08-21 | 2000-08-21 | Compensateur de phase $g(p)/2 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6815993B1 (ja) |
EP (1) | EP1317065A1 (ja) |
JP (1) | JP3933575B2 (ja) |
KR (1) | KR20020040903A (ja) |
CN (1) | CN1379928A (ja) |
WO (1) | WO2002017485A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006006239A1 (ja) * | 2004-07-14 | 2006-01-19 | Fujitsu Limited | 移相回路及び位相補正方法 |
US7282979B2 (en) | 2004-09-16 | 2007-10-16 | Matsushita Electric Industrial Co., Ltd. | Phase shifting device |
WO2010131408A1 (ja) * | 2009-05-14 | 2010-11-18 | 日本電気株式会社 | 移相器、無線通信装置及び位相制御方法 |
JP2013118554A (ja) * | 2011-12-05 | 2013-06-13 | Nippon Telegr & Teleph Corp <Ntt> | 位相変調器 |
JP2013118555A (ja) * | 2011-12-05 | 2013-06-13 | Nippon Telegr & Teleph Corp <Ntt> | 制御回路および位相変調器 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4246166B2 (ja) * | 2004-03-04 | 2009-04-02 | パナソニック株式会社 | 分周回路及びそれを用いたマルチモード無線機 |
KR100652809B1 (ko) * | 2005-11-03 | 2006-12-04 | 삼성전자주식회사 | 가변 저항 및 가변 용량을 이용한 광대역 다상 필터 |
US7587187B2 (en) | 2006-06-29 | 2009-09-08 | Itt Manufacturing Enterprises, Inc. | Ultra wide band, differential input/output, high frequency active mixer in an integrated circuit |
US20080111607A1 (en) * | 2006-11-10 | 2008-05-15 | Hart Robert T | Amplitude-linear differential phase shift circuit |
US8304805B2 (en) | 2009-01-09 | 2012-11-06 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor diodes fabricated by aspect ratio trapping with coalesced films |
KR101043217B1 (ko) * | 2009-04-14 | 2011-06-21 | (주)드림셰프 | 누룽지 구이팬 |
FR2969426B1 (fr) * | 2010-12-15 | 2013-08-30 | St Microelectronics Sa | Circuit de dephasage |
CN102832905B (zh) * | 2012-08-31 | 2016-06-08 | 华为技术有限公司 | 移相器和移相方法 |
US10951202B2 (en) * | 2018-07-20 | 2021-03-16 | Futurewei Technologies, Inc. | Method and apparatus for RC/CR phase error calibration of measurement receiver |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60109313A (ja) * | 1983-11-17 | 1985-06-14 | Mitsubishi Electric Corp | 中間周波処理用半導体集積回路 |
JPH07303028A (ja) * | 1994-05-09 | 1995-11-14 | Hitachi Ltd | 90度移相回路 |
JPH10313231A (ja) * | 1997-05-13 | 1998-11-24 | Mitsubishi Electric Corp | π/2移相器及びπ/2移相器用位相補正回路 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4868428A (en) * | 1987-02-20 | 1989-09-19 | Cooper J Carl | Apparatus for shifting the frequency of complex signals |
CA2035455C (en) * | 1989-06-30 | 1995-08-22 | Kouji Chiba | Linear transmitter |
JP3102187B2 (ja) | 1993-02-23 | 2000-10-23 | 松下電器産業株式会社 | 直交変調器 |
DE69433255T2 (de) * | 1993-02-26 | 2004-04-29 | Nippon Telegraph And Telephone Corp. | Gruppen modulator |
JPH06283966A (ja) | 1993-03-30 | 1994-10-07 | Toshiba Corp | π/2位相制御回路 |
-
2000
- 2000-08-21 US US10/110,203 patent/US6815993B1/en not_active Expired - Fee Related
- 2000-08-21 WO PCT/JP2000/005578 patent/WO2002017485A1/ja not_active Application Discontinuation
- 2000-08-21 JP JP2002522063A patent/JP3933575B2/ja not_active Expired - Fee Related
- 2000-08-21 CN CN00814527A patent/CN1379928A/zh active Pending
- 2000-08-21 KR KR1020027005109A patent/KR20020040903A/ko not_active Application Discontinuation
- 2000-08-21 EP EP00953528A patent/EP1317065A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60109313A (ja) * | 1983-11-17 | 1985-06-14 | Mitsubishi Electric Corp | 中間周波処理用半導体集積回路 |
JPH07303028A (ja) * | 1994-05-09 | 1995-11-14 | Hitachi Ltd | 90度移相回路 |
JPH10313231A (ja) * | 1997-05-13 | 1998-11-24 | Mitsubishi Electric Corp | π/2移相器及びπ/2移相器用位相補正回路 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006006239A1 (ja) * | 2004-07-14 | 2006-01-19 | Fujitsu Limited | 移相回路及び位相補正方法 |
US7443220B2 (en) | 2004-07-14 | 2008-10-28 | Fujitsu Limited | Phase shift circuit and phase correcting method |
US7282979B2 (en) | 2004-09-16 | 2007-10-16 | Matsushita Electric Industrial Co., Ltd. | Phase shifting device |
WO2010131408A1 (ja) * | 2009-05-14 | 2010-11-18 | 日本電気株式会社 | 移相器、無線通信装置及び位相制御方法 |
JP5360204B2 (ja) * | 2009-05-14 | 2013-12-04 | 日本電気株式会社 | 移相器、無線通信装置及び位相制御方法 |
US8665989B2 (en) | 2009-05-14 | 2014-03-04 | Nec Corporation | Phase shifter, wireless communication apparatus, and phase control method |
JP2013118554A (ja) * | 2011-12-05 | 2013-06-13 | Nippon Telegr & Teleph Corp <Ntt> | 位相変調器 |
JP2013118555A (ja) * | 2011-12-05 | 2013-06-13 | Nippon Telegr & Teleph Corp <Ntt> | 制御回路および位相変調器 |
Also Published As
Publication number | Publication date |
---|---|
CN1379928A (zh) | 2002-11-13 |
US6815993B1 (en) | 2004-11-09 |
JP3933575B2 (ja) | 2007-06-20 |
EP1317065A1 (en) | 2003-06-04 |
KR20020040903A (ko) | 2002-05-30 |
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