Sinusoidal Voltage-Controlled Oscillator Based on a Liquid Crystal Cell as Variable Capacitance

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著者

    • Perez Isabel Pérez Isabel
    • Departamento de Tecnología Electrónica, Universidad Carlos III, Avenida de la Universidad 30, Leganés E28911, Madrid, Spain
    • Manzanares Rodrigo
    • Departamento de Tecnología Electrónica, Universidad Carlos III, Avenida de la Universidad 30, Leganés E28911, Madrid, Spain
    • Otón José M.
    • Departamento de Tecnología Fotónica, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, E28040, Madrid, Spain

抄録

A voltage-controlled oscillator (VCO) in Colpitts circuit configuration is demonstrated using a twisted-nematic (TN) liquid crystal (LC) cell as a capacitance that can be varied as a function of applied voltage. Oscillation frequencies in the range of kHz have been obtained for the combination of inductance and capacitances used in the circuit. A theoretical study for the whole circuit is proposed and experimentally validated. Applications of this circuit include, among others, modulation and demodulation frequency signal, phase locked-loops, and function generators.

収録刊行物

  • Japanese journal of applied physics. Pt. 2, Letters

    Japanese journal of applied physics. Pt. 2, Letters 46(10), L221-L223, 2007-03-25

    Japan Society of Applied Physics

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各種コード

  • NII論文ID(NAID)
    10018903155
  • NII書誌ID(NCID)
    AA10650595
  • 本文言語コード
    EN
  • 資料種別
    SHO
  • ISSN
    0021-4922
  • NDL 記事登録ID
    8695448
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z54-J337
  • データ提供元
    CJP書誌  NDL  JSAP 
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