Reconfigurable broadband active power splitter, ditto power combiner and ditto bidirectional power splitter/power combiner and circuits based on these

摘要

A distribution network which can be an active power splitter or an active power combiner or alternatingly power splitter and such a power combiner. The power splitter consists of two distributed amplifiers with a common input and one output each, and the power combiner consists of two distributed amplifiers with one input each and a common output. For the power splitter, a switching element is connected between each connection point on the outputs of the amplifying elements and ground, and for said power combiner, a switching element is connected between each connection point on the inputs of the amplifying elements and ground, the switching elements being optimised to take, depending on a control voltage, one of two distinct states. A first state corresponding to a capacitance and a second state corresponding to a low impedance short circuit. This implies that when the control voltage is high for a distributed amplifier, this amplifier transmits power, and, when the control voltage is low for a distributed amplifier, this amplifier does not transmit power. The invention also relates to a multifunctional broadband electronically steered phased array system comprising at least one power splitter or power combiner as stated above.