The CHE1270a is a detector that integrates a matched detection diode (Vdet). A reference diode is also available to be used in differential mode (Vref). It is designed for a wide range of applications where an accurate transmitted power control is required, typically commercial communication systems. The circuit is manufactured with a Schottky diode MMIC process, 1µm gate length, via holes through the substrate and air bridges. It is available in chip form.