• 专利标题: Wideband VCO resonant circuit method and apparatus
  • 申请号: US10199898
    申请日: 2002-07-18
  • 公开(公告)号: US06801097B2
    公开(公告)日: 2004-10-05
  • 发明人: Raymond C. Wallace
  • 申请人: Raymond C. Wallace
  • 主分类号: H03B508
  • IPC分类号: H03B508
Wideband VCO resonant circuit method and apparatus
摘要:
A wideband Voltage Controlled Oscillator (VCO) uses a resonant circuit tunable over a wide range of resonant frequencies. The resonant circuit includes voltage variable elements such that the resonant frequency, and thus the frequency of oscillation, may be electronically tuned. The voltage variable elements are arranged such that multiple control voltages determine the resonant frequency. A first control voltage is applied to a first set of tuning elements and operates as a coarse control of the resonant frequency. A second control voltage is applied to a second set of tuning elements and operates as a fine control of the resonant frequency. Using multiple control voltages on multiple elements allows for a wideband VCO while maintaining a low VCO gain.
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