Invention Grant
US08405467B2 Methods and apparatuses for inductor tuning in radio frequency integrated circuits 有权
射频集成电路中电感调谐的方法和装置

  • Patent Title: Methods and apparatuses for inductor tuning in radio frequency integrated circuits
  • Patent Title (中): 射频集成电路中电感调谐的方法和装置
  • Application No.: US11945892
    Application Date: 2007-11-27
  • Publication No.: US08405467B2
    Publication Date: 2013-03-26
  • Inventor: Allen Nan He
  • Applicant: Allen Nan He
  • Applicant Address: US CA San Diego
  • Assignee: QUALCOMM Incorporated
  • Current Assignee: QUALCOMM Incorporated
  • Current Assignee Address: US CA San Diego
  • Agent Kevin T. Cheatham
  • Main IPC: H03H7/38
  • IPC: H03H7/38
Methods and apparatuses for inductor tuning in radio frequency integrated circuits
Abstract:
An apparatus for matching impedance within a Radio Frequency (RF) integrated circuit is presented. The apparatus includes a first impedance element placed in an RF signal path, an first inductor fabricated on the integrated circuit and connected to the first impedance element, and an adjustable capacitance circuit connected in series with the first inductor and placed between the first inductor and a ground node, where the adjustable capacitance circuit is adjusted to tune the inductance of the first inductor. A method for tuning an inductor is presented. The method includes ascertaining a target inductance value for an inductor in a RF integrated circuit, and determining a capacitance value of an adjustable capacitance circuit so that, when coupled to the inductor, the combined impedance of the adjustable capacitance circuit and the inductor is tuned to the ascertained target inductance value.
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