JP4358185B2 - 電圧制御発振器、並びに、送信機及び受信機 - Google Patents
電圧制御発振器、並びに、送信機及び受信機 Download PDFInfo
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- JP4358185B2 JP4358185B2 JP2005358268A JP2005358268A JP4358185B2 JP 4358185 B2 JP4358185 B2 JP 4358185B2 JP 2005358268 A JP2005358268 A JP 2005358268A JP 2005358268 A JP2005358268 A JP 2005358268A JP 4358185 B2 JP4358185 B2 JP 4358185B2
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- Prior art keywords
- resonance frequency
- voltage
- controlled oscillator
- variable capacitance
- control
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
- H03B5/1212—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair
- H03B5/1215—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair the current source or degeneration circuit being in common to both transistors of the pair, e.g. a cross-coupled long-tailed pair
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
- H03B5/1262—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising switched elements
- H03B5/1265—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising switched elements switched capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
- H03B2201/025—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements
- H03B2201/0266—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements the means comprising a transistor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Transceivers (AREA)
- Superheterodyne Receivers (AREA)
- Transmitters (AREA)
Description
上記電圧制御発振器を備えている送信機、あるいは、受信機においては、共振周波数の変動範囲の切り替え前後の共振周波数の比が制御電圧に依存して変化してしまうことに対応するための回路構成を必要としない。すなわち、回路構成が容易で、低コストな送信機、あるいは、受信機を提供できるという効果を奏する。
、共振周波数範囲の切り替え前後の共振周波数の比fA/fBは、制御電圧Vcに依存し、一定にはならない。
100a 増幅回路
Tr101a、Tr101b トランジスタ
C104a、C104b 固定容量素子
100b 共振回路
L101a、L101b インダクタ
C101a、C101b 可変容量素子(第1の可変容量素子)
C101c 容量値制御端子
101 制御電圧入力端子
C102a、C102b 可変容量素子(第2の可変容量素子)
C102c 容量値制御端子
SW101 スイッチ(共振周波数切り替え手段)
100c 共振周波数補正回路(共振周波数補正手段)
C103a、C103b 可変容量素子(第3の可変容量素子)
C103c 容量値制御端子
SW102 スイッチ
I101 電流源
V101 電圧源
102 電源
30、30a、30b スイッチ素子
31 NMOSトランジスタ(トランジスタ)
32 PMOSトランジスタ(トランジスタ)
400 送受信機
409 局部発振器(電圧制御発振器)
Claims (7)
- 第1の可変容量素子および該第1の可変容量素子に並列に接続された第2の可変容量素子を含み、該第1の可変容量素子に印加する制御電圧に応じて共振周波数が変動する共振回路と、
上記第2の可変容量素子の容量値を切り替えることにより、上記共振回路における共振周波数の変動範囲を切り替える共振周波数範囲切り替え手段と、
上記第1の可変容量素子に印加する制御電圧を一定に保って、上記共振周波数の変動範囲を切り替えた場合に、上記共振周波数範囲切り替え手段による上記共振周波数の変動範囲の切り替え前後の共振周波数の比が、上記制御電圧に依存しないよう、上記共振周波数を補正する共振周波数補正手段とを備えたことを特徴とする電圧制御発振器。 - 上記共振周波数補正手段は、上記第2の可変容量素子に並列に接続された第3の可変容量素子を含み、該第3の可変容量素子の容量値を切り替えることにより上記共振周波数を補正することを特徴とする請求項1に記載の電圧制御発振器。
- 上記共振周波数補正手段は、上記第3の可変容量素子に、上記制御電圧を印加するか、あるいは、電圧源により出力される一定の出力電圧を印加するかを、上記共振周波数範囲切り替え手段と連動して切り替えるスイッチを含んでいることを特徴とする請求項2に記載の電圧制御発振器。
- 上記スイッチは、トランジスタを含んでいることを特徴とする請求項3に記載の電圧制御発振器。
- 上記スイッチは、デジタル信号である制御信号と、該制御信号をインバータにより反転した反転信号とにより制御されることを特徴とする請求項3に記載の電圧制御発振器。
- 請求項1から5のうち何れか一項に記載の電圧制御発振器を局部発振器として含むことを特徴とする送信機。
- 請求項1から5のうち何れか一項に記載の電圧制御発振器を局部発振器として含むことを特徴とする受信機。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005358268A JP4358185B2 (ja) | 2005-12-12 | 2005-12-12 | 電圧制御発振器、並びに、送信機及び受信機 |
US11/589,774 US7405632B2 (en) | 2005-12-12 | 2006-10-31 | Voltage-controlled oscillator, transmitter, and receiver |
CNA2006101693281A CN1983798A (zh) | 2005-12-12 | 2006-12-11 | 电压控制振荡器以及发射机和接收机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005358268A JP4358185B2 (ja) | 2005-12-12 | 2005-12-12 | 電圧制御発振器、並びに、送信機及び受信機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007166121A JP2007166121A (ja) | 2007-06-28 |
JP4358185B2 true JP4358185B2 (ja) | 2009-11-04 |
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JP2005358268A Expired - Fee Related JP4358185B2 (ja) | 2005-12-12 | 2005-12-12 | 電圧制御発振器、並びに、送信機及び受信機 |
Country Status (3)
Country | Link |
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US (1) | US7405632B2 (ja) |
JP (1) | JP4358185B2 (ja) |
CN (1) | CN1983798A (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200950309A (en) * | 2008-05-21 | 2009-12-01 | Ralink Technology Corp | Resonator circuit and voltage-controlled oscillator using the same |
US8315587B2 (en) * | 2008-08-29 | 2012-11-20 | Silicon Laboratories Inc. | Mechanical tuning of a radio |
US8063712B2 (en) * | 2009-03-03 | 2011-11-22 | Broadcom Corporation | Method and system for voltage controlled oscillator impedance control to optimize performance, efficiency, and power consumption |
US20110049999A1 (en) * | 2009-08-31 | 2011-03-03 | Yu Zhang | Circuit for controlling a tuning gain of a voltage controlled oscillator |
US8319564B2 (en) * | 2010-03-26 | 2012-11-27 | Altera Corporation | Integrated circuits with configurable inductors |
US8253506B2 (en) * | 2010-10-05 | 2012-08-28 | Qualcomm, Incorporated | Wideband temperature compensated resonator and wideband VCO |
KR101456207B1 (ko) * | 2013-08-05 | 2014-11-03 | 숭실대학교산학협력단 | 스위칭 커패시터를 이용한 슬루 레이트 조절 장치 |
JP6206664B2 (ja) * | 2013-10-30 | 2017-10-04 | セイコーエプソン株式会社 | 発振回路、発振器、発振器の製造方法、電子機器及び移動体 |
JP2015088876A (ja) | 2013-10-30 | 2015-05-07 | セイコーエプソン株式会社 | 振動素子、振動子、電子デバイス、電子機器及び移動体 |
JP2015088931A (ja) | 2013-10-30 | 2015-05-07 | セイコーエプソン株式会社 | 発振回路、発振器、発振器の製造方法、電子機器及び移動体 |
JP2015088930A (ja) | 2013-10-30 | 2015-05-07 | セイコーエプソン株式会社 | 発振回路、発振器、発振器の製造方法、電子機器及び移動体 |
JP6226127B2 (ja) | 2013-10-30 | 2017-11-08 | セイコーエプソン株式会社 | 発振回路、発振器、発振器の製造方法、電子機器及び移動体 |
CN105406821A (zh) * | 2015-12-17 | 2016-03-16 | 武汉邮电科学研究院 | 宽带压控振荡器 |
CN109792230B (zh) * | 2016-10-07 | 2023-03-28 | 瑞典爱立信有限公司 | 用于调谐差分电路的开关电容器装置 |
CN113364454A (zh) * | 2020-03-04 | 2021-09-07 | 川土微电子(深圳)有限公司 | 压控振荡器 |
US11025231B1 (en) * | 2020-04-16 | 2021-06-01 | Silicon Laboratories Inc. | Providing a programmable inductor to enable wide tuning range |
US11646705B2 (en) | 2021-06-30 | 2023-05-09 | Silicon Laboratories Inc. | Dual-mode power amplifier for wireless communication |
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DE4314424A1 (de) * | 1993-05-03 | 1994-11-10 | Philips Patentverwaltung | Oszillator |
JP2002151953A (ja) | 2000-11-08 | 2002-05-24 | Matsushita Electric Ind Co Ltd | 電圧制御発振器の周波数切替え装置 |
JP2003229718A (ja) | 2002-02-01 | 2003-08-15 | Nec Electronics Corp | 電圧制御発振器 |
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2005
- 2005-12-12 JP JP2005358268A patent/JP4358185B2/ja not_active Expired - Fee Related
-
2006
- 2006-10-31 US US11/589,774 patent/US7405632B2/en not_active Expired - Fee Related
- 2006-12-11 CN CNA2006101693281A patent/CN1983798A/zh active Pending
Also Published As
Publication number | Publication date |
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JP2007166121A (ja) | 2007-06-28 |
CN1983798A (zh) | 2007-06-20 |
US20070132524A1 (en) | 2007-06-14 |
US7405632B2 (en) | 2008-07-29 |
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