Patent ID: 6542021
Filing Date: 2003-04-01
Classification: H03K

Abstract:
A high frequency switch comprising:a first signal terminal; a first diode, the cathode of which is directly or indirectly connected to said first signal terminal; bias controlling means having an end which is connected to the anode of said first diode; a second signal terminal directly or indirectly connected to said anode of said first diode; impedance converting means having an end which is directly or indirectly connected to said first signal terminal; a serial circuit having high frequency voltage dividing means and a second diode, said serial circuit being connected to the other end of said impedance converting means; and a third signal terminal directly or indirectly connected to said other end of said impedance converting means, wherein switching on/off of said bias controlling means implements conduction between said first signal terminal and said second signal terminal or conduction between said first signal terminal and said third signal terminal, said high frequency voltage dividing means includes at least a diode, the anode of which is directly or indirectly connected to the cathode of said second diode in series, and said second diode is connected with said first signal terminal and said third signal terminal in parallel.