High frequency switch circuit

  • US 7,345,521 B2
  • Filed: 05/19/2003
  • Issued: 03/18/2008
  • Est. Priority Date: 05/17/2002
  • Status: Active Grant
  • ×
    • Pin Icon | RPX Insight
    • Pin
First Claim
Patent Images

1. A high-frequency switch circuit comprising:

  • a plurality of high-frequency switch means for passing and blocking a high-frequency signal between an input terminal and an output terminal depending on a control potential applied as a control signal;

    detecting means for detecting the high-frequency signal which passes though said high-frequency switch means; and

    a control potential generating circuit for changing the control potential applied to at least one of said plurality of high-frequency switch means in order to increase difference between the control potential applied to the high-frequency switch means which is in an ON-state and the control potential applied to a second high-frequency switch means of said plurality of high-frequency switch means which is in an OFF-state, depending on an amplitude of the high-frequency signal detected by said detecting means, said control potential generating circuit being connected between an output of said detecting means and a control input terminal of said high-frequency switch means associated with said detecting means.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×