Abstract: An attenuation circuit comprising: a connection-node for connecting to an RF connection; an isolation-capacitor connected in series between the connection-node and an internal-node; a first-bias-resistor connected in series between a first-control-node and the internal-node; a second-bias-resistor connected in series between the internal-node and a second-control-node; a first-attenuation-diode connected in series between the first-control-node and the internal-node, wherein the anode of the first-attenuation-diode is closest to the first-control-node; a second-attenuation-diode connected in series between the internal-node and the second-control-node, wherein the anode of the second-attenuation-diode is closest to the internal-node; a first-decoupling-capacitor connected in series between the first-control-node and the reference-node; and a second-decoupling-capacitor connected in series between the second-control-node and the reference-node.