| 摘要 |
This disclosure relates to attenuators and, particularly, to controllable, constant-impedance attenuators. More particularly, this disclosure describes a voltage or current-controlled absorptive attenuator, using a four terminal hybrid circuit, wherein the amount of power passed from the input terminal to the output terminal can be varied from zero to maximum by controlling the amount of power diverted to the other two, quadrature terminals of the hybrid network.
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