That provides a managed ahead bias recent, a reverse bias voltage, as well as the activating interface in between the control sign—commonly a digital logic command and one or more PIN diodes. This driver function can be rendered as a discrete layout, or with specialized ICs to fit the application. https://pindiodeswitch01222.uzblog.net/the-smart-trick-of-pin-diode-switch-that-nobody-is-discussing-51030402