Attenuating circuit using quarter-wave lines

Details Attenuating circuit using quarter-wave lines Attenuating circuit using quarter-wave lines

1996-03-07

1998-09-15

Pascal, Robert

Wave transmission lines and networks

Attenuators

333 81R, H01P 122

Patent

active

058085203

ABSTRACT:
A first bypass capacitor and a second bypass capacitor are connected in series between an input terminal and an output terminal for high frequency signals. A quart-wave line and a diode are connected between the connecting point of the first and second bypass capacitors and the ground, and a choke coil is connected between the connecting point and a D.C. voltage input terminal. When input signals are not to be attenuated, a D.C. voltage is fed from the D.C. voltage input terminal, and no D.C. voltage is fed when the signals are to be attenuated.

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