Title:
高周波スイッチ回路
Document Type and Number:
Japanese Patent JP4009553
Kind Code:
B2
Abstract:
A high-frequency switch circuit has a plurality of high-frequency switches 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, a high-frequency detecting terminal for detecting high-frequency signal passing through the high-frequency switch which is in ON-state, and a voltage boosting circuit for generating a potential for increasing the control potential applied to the high-frequency switch which is in ON-state in order to increase difference between the control potential applied to the high-frequency switch which is in an ON-state and the control potential applied to the high-frequency switch which is in an OFF-state, depending on an intensity or amplitude of the detected high-frequency signal.
Inventors:
Hiroyuki Takahashi
Keishi Numata
Keishi Numata
Application Number:
JP2003122361A
Publication Date:
November 14, 2007
Filing Date:
April 25, 2003
Export Citation:
Assignee:
NEC
International Classes:
H03K17/693; H04B1/48; H03K17/06
Domestic Patent References:
| JP1084267A |
Attorney, Agent or Firm:
Masahiko Desk
Naoki Shimosaka
Yasuhisa Tanizawa
Naoki Shimosaka
Yasuhisa Tanizawa