JP2013546237A - 集積回路における同調可能な共振回路 - Google Patents
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- H—ELECTRICITY
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- 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
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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
- H03B5/1228—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 field effect transistors
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- 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
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- 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
- H03B5/124—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 a voltage dependent capacitance
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- 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
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
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- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
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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
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
- H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode
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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
- 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
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Abstract
Description
1以上の実施例は、一般的に、LCタンク回路に関し、特に、集積回路で実行される同調可能な共振回路に関する。
共振回路は、フィルタや共振器等の様々な応用に対して有用である。共振周波数は、応用要件に追随し、および/または、製造過程、動作温度および動作電圧における変動を補償するための同調可能な共振回路において調整可能である。
同調可能な共振回路は、一実施例において与えられる。当該回路は、第1および第2のキャパシタを含むことができ、各々は第1および第2の電極を含むことができる。第1および第2のキャパシタは、第1のキャパシタの第1および第2の電極と、第2のキャパシタの第1および第2の電極との間に整合の取れた容量を与えることができる。少なくとも1つの深井戸配列は、集積回路の基板内に配置された第2の井戸内に配置された第1の井戸を含むことができる。第1および第2のキャパシタは各々、少なくとも1つの深井戸配列の第1の井戸に配置することができる。第1、第2および第3のトランジスタは、集積回路に配置することができ、各々はゲート電極および2つのチャネル電極を含むことができる。第1のトランジスタの2つのチャネル電極は、第1のキャパシタの第2の電極および第2のキャパシタの第2の電極にそれぞれ結合することができる。第2のトランジスタの2つのチャネル電極は、第1のキャパシタの第2の電極および接地にそれぞれ結合することができる。第3のトランジスタの2つのチャネル電極は、第2のキャパシタの第2の電極および接地にそれぞれ結合することができる。第1、第2および第3のトランジスタのゲート電極は、同調信号に応答することができ、インダクタは、第1のキャパシタの第1の電極と第2のキャパシタの第1の電極との間に結合することができる。
Claims (12)
- 同調可能な共振回路であって、
各々が第1および第2の電極を含む第1および第2のキャパシタを備え、前記第1および第2のキャパシタは、前記第1のキャパシタの前記第1および第2の電極と、前記第2のキャパシタの前記第1および第2の電極との間に整合の取れた容量を与え、前記共振回路は、さらに、
集積回路の基板内に配置された第2の井戸内に配置された第1の井戸を含む少なくとも1つの深井戸配列を備え、前記第1および第2のキャパシタは各々、前記少なくとも1つの深井戸配列の前記第1の井戸に配置され、前記共振回路は、さらに、
第1、第2および第3のトランジスタを備え、各トランジスタは前記集積回路に配置され、各々はゲート電極および2つのチャネル電極を含み、
前記第1のトランジスタの前記2つのチャネル電極は、前記第1のキャパシタの前記第2の電極および前記第2のキャパシタの前記第2の電極にそれぞれ結合され、
前記第2のトランジスタの前記2つのチャネル電極は、前記第1のキャパシタの前記第2の電極および接地にそれぞれ結合され、前記第3のトランジスタの前記2つのチャネル電極は、前記第2のキャパシタの前記第2の電極および接地にそれぞれ結合され、
前記第1、第2および第3のトランジスタの前記ゲート電極は、同調信号に応答し、前記共振回路は、さらに、
前記第1のキャパシタの前記第1の電極と前記第2のキャパシタの前記第1の電極との間に結合されたインダクタを備える、同調可能な共振回路。 - 各深井戸配列の前記第1の井戸はp型井戸であり、各深井戸配列の前記第2の井戸はn型井戸であり、
前記基板はp型基板である、請求項1に記載の同調可能な共振回路。 - 前記少なくとも1つの深井戸配列は、1つの深井戸配列のみを含み、前記第1および第2のキャパシタは、当該1つの深井戸配列の前記p型井戸に配置される、請求項2に記載の同調可能な共振回路。
- 前記少なくとも1つの深井戸配列は、第1および第2の深井戸配列を含み、
前記第1のキャパシタは、前記第1の深井戸配列の前記p型井戸に配置され、前記第2のキャパシタは、前記第2の深井戸配列の前記p型井戸に配置される、請求項2に記載の同調可能な共振回路。 - 前記集積回路は、誘電体層によって分離された2つの金属層を含み、前記第1および第2のキャパシタは各々、前記2つの金属層の一方において前記第1の電極を含み、前記2つの金属層の他方において前記第2の電極を含み、
前記第1のキャパシタは、前記第1のキャパシタの前記第1および第2の電極間に整合された容量を与え、前記第2のキャパシタは、前記第2のキャパシタの前記第1および第2の電極間に整合された容量を与え、
前記インダクタと前記第1および第2のキャパシタとの間の共振は、前記同調信号に応答して変化する、請求項1〜4のいずれかに記載の同調可能な共振回路。 - 前記第1のトランジスタは、前記同調信号の制御電圧と、前記第1のトランジスタの前記2つのチャネル電極におけるバイアス電圧との間の電圧差に応じて、前記第1および第2のキャパシタと差動的に結合し、
前記第2および第3のトランジスタは、前記バイアス電圧を接地に設定する、請求項1〜5のいずれかに記載の同調可能な共振回路。 - 同調可能な共振回路の寄生容量を低減させる方法であって、
第1のキャパシタの第1および第2の電極と、第2のキャパシタの第1および第2の電極との間に整合の取れた容量を与えることと、
少なくとも1つの深井戸配列の第1の井戸に第1および第2のキャパシタを配置することとを備え、前記少なくとも1つの深井戸配列は、集積回路の基板内に配置された第2の井戸内に配置された第1の井戸を含み、前記方法は、さらに、
前記集積回路に第1、第2および第3のトランジスタを配置することを備え、各トランジスタは、ゲート電極および2つのチャネル電極を含み、
前記第1のトランジスタの前記2つのチャネル電極は、前記第1のキャパシタの前記第2の電極および前記第2のキャパシタの前記第2の電極にそれぞれ結合され、
前記第2のトランジスタの前記2つのチャネル電極は、前記第1のキャパシタの前記第2の電極および接地にそれぞれ結合され、前記第3のトランジスタの前記2つのチャネル電極は、前記第2のキャパシタの前記第2の電極および接地にそれぞれ結合され、
前記第1、第2および第3のトランジスタの前記ゲート電極は、同調信号に応答し、前記方法は、さらに、
前記第1のキャパシタの前記第1の電極と前記第2のキャパシタの前記第1の電極との間にインダクタを結合することを備える、方法。 - 各深井戸配列の前記第1の井戸はp型井戸であり、各深井戸配列の前記第2の井戸はn型井戸であり、
前記基板はp型基板である、請求項7に記載の方法。 - 前記少なくとも1つの深井戸配列は、1つの深井戸配列のみを含み、前記第1および第2のキャパシタは、当該1つの深井戸配列の前記p型井戸に配置される、請求項8に記載の方法。
- 前記少なくとも1つの深井戸配列は、第1および第2の深井戸配列を含み、前記方法は、さらに、
前記第1の深井戸配列の前記p型井戸に前記第1のキャパシタを配置することと、
前記第2の深井戸配列の前記p型井戸に前記第2のキャパシタを配置することとを備える、請求項8に記載の方法。 - 前記集積回路は、誘電体層によって分離された2つの金属層を含み、前記第1および第2のキャパシタは各々、前記2つの金属層の一方において前記第1の電極を含み、前記2つの金属層の他方において前記第2の電極を含み、
前記第1のキャパシタは、前記第1のキャパシタの前記第1および第2の電極間に整合された容量を与え、前記第2のキャパシタは、前記第2のキャパシタの前記第1および第2の電極間に整合された容量を与え、
前記インダクタと前記第1および第2のキャパシタとの間の共振は、前記同調信号に応答して変化する、請求項7〜10のいずれかに記載の方法。 - 前記同調信号の制御電圧と、前記第1のトランジスタの前記2つのチャネル電極におけるバイアス電圧との間の電圧差に応じて、前記第1および第2のキャパシタを差動的に結合することと、
前記第2および第3のトランジスタを用いて前記バイアス電圧を接地に設定することとをさらに備える、請求項7〜11のいずれかに記載の方法。
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US12/906,017 US8269566B2 (en) | 2010-10-15 | 2010-10-15 | Tunable resonant circuit in an integrated circuit |
PCT/US2011/050048 WO2012050676A1 (en) | 2010-10-15 | 2011-08-31 | Tunable resonant circuit in an integrated circuit |
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KR101376457B1 (ko) | 2014-03-27 |
EP2628241B1 (en) | 2014-08-13 |
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JP5654131B2 (ja) | 2015-01-14 |
CN103404024B (zh) | 2015-12-09 |
US8269566B2 (en) | 2012-09-18 |
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CN103404024A (zh) | 2013-11-20 |
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