Patent ID: 6480062
Filing Date: 2002-11-12
Classification: H03F

Abstract:
An amplifier circuit for receiving an input signal and providing a corresponding amplified output signal, the circuit comprising:a) a plurality of reflection amplifiers cascaded in series along a signal path and operative to amplify the input signal propagating in a forward direction theralong to provide the output signal; and b) connecting means for connecting the reflection amplifiers to form the signal path and for hindering signal propagation in a reverse direction therealong, thereby counteracting spontaneous oscillation from arising within the circuit, the connecting means incorporating switching means for alternatively switching a plurality of the reflection amplifiers such that each reflection amplifier is operable to receive signals propagating in the forward direction along the path and to output the signals after amplification to the signal path to propagate further in the forward direction therealong, the reflection amplifiers incorporating signal delaying means for delaying signal propagation to and from the reflection amplifiers.