A matching circuit having an enabled-mode of operation and a disabled-mode of operation and comprising: an input-terminal configured to be connected to an active-circuit; an output-terminal configured to be connected to a downstream component; a current-source configured to provide a disabled-current; one or more diode-modules (528a, 528b), each comprising a diode and a biasing-resistor in parallel with each other; and a reactive-matching-component that has a reactive impedance; a first-diode connected between a supply-terminal and a disabled-current-injection-node;wherein the one or more diode-modules are connected in series between the disabled-current-injection-node and the input-terminal; the input-terminal is coupled to the output-terminal; the current-source is connected between the disabled-current-injection-node and a reference-terminal; and the reactive-matching-component is connected between the disabled-current-injection-node and the reference-terminal in parallel with the current-source; and wherein the current source is configured to pass the disabled-current through the one or more diode-modules (528a, 528b) and the reactive-matching-component when the matching circuit is in a disabled-mode of operation such that they contribute to the impedance of the matching circuit between the input-terminal and the output-terminal wherein the reactive-matching-component is configured to counteract a reactance at the output of the active-circuit, when the active-circuit is in a disabled-mode of operation; and wherein the current-source is configured not to pass the disabled-current through the one or more diode-modules (528a, 528b) and the reactive-matching-component when the matching circuit is in an enabled-mode of operation. an input-terminal configured to be connected to an active-circuit; an output-terminal configured to be connected to a downstream component; a current-source configured to provide a disabled-current; one or more diode-modules (528a, 528b), each comprising a diode and a biasing-resistor in parallel with each other; and a reactive-matching-component that has a reactive impedance; a first-diode connected between a supply-terminal and a disabled-current-injection-node;wherein the one or more diode-modules are connected in series between the disabled-current-injection-node and the input-terminal; the input-terminal is coupled to the output-terminal; the current-source is connected between the disabled-current-injection-node and a reference-terminal; and the reactive-matching-component is connected between the disabled-current-injection-node and the reference-terminal in parallel with the current-source; and wherein the current source is configured to pass the disabled-current through the one or more diode-modules (528a, 528b) and the reactive-matching-component when the matching circuit is in a disabled-mode of operation such that they contribute to the impedance of the matching circuit between the input-terminal and the output-terminal wherein the reactive-matching-component is configured to counteract a reactance at the output of the active-circuit, when the active-circuit is in a disabled-mode of operation; and wherein the current-source is configured not to pass the disabled-current through the one or more diode-modules (528a, 528b) and the reactive-matching-component when the matching circuit is in an enabled-mode of operation.