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Zhang et al., 2006 - Google Patents

Comparison of VCO Topology for Wideband Multi-Standard Applications

Zhang et al., 2006

Document ID
16541257379345203679
Author
Zhang S
Zaghloul M
Su W
Elkis R
Wu C
Publication year
Publication venue
2006 IEEE Annual Wireless and Microwave Technology Conference

External Links

Snippet

In this paper, three popular VCO topologies: cross-coupled, complementary cross-coupled, and differential Colpitts are investigated in terms of their performance for wideband wireless communication applications. Three VCOs, implemented in a standard 0.5 mum CMOS …
Continue reading at ieeexplore.ieee.org (other versions)

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    • HELECTRICITY
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    • H03B5/00Generation of oscillations using amplifier with regenerative feedback from output to input
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    • H03B5/124Generation 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
    • H03B5/1246Generation 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 the means comprising transistors used to provide a variable capacitance
    • H03B5/1253Generation 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 the means comprising transistors used to provide a variable capacitance the transistors being field-effect transistors
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    • H03B5/1237Generation 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
    • H03B5/124Generation 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
    • H03B5/1243Generation 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 the means comprising voltage variable capacitance diodes
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    • H03B5/1212Generation 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
    • H03B5/1215Generation 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
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    • H03B5/1228Generation 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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    • H03B5/1203Generation 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 being a single transistor
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    • H03B5/00Generation of oscillations using amplifier with regenerative feedback from output to input
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    • H03B5/1231Generation 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
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    • H03LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00Automatic control of frequency or phase; Synchronisation
    • H03L7/06Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08Details of the phase-locked loop
    • H03L7/099Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
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    • H03B2200/006Functional aspects of oscillators
    • H03B2200/0062Bias and operating point
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    • H03B2201/00Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02Varying the frequency of the oscillations by electronic means
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    • H03B1/00Details

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