A nozzle for a fuel injector of an engine includes a generally cylindrical housing having a valve passage disposed generally longitudinally along the centerline C of the housing and extending from a top surface of the housing. The first transmission line is typically a coplanar line of finite length, and the second transmission line is typically a microstrip line. Advantageously, circuitry of the present invention may be employed within an integrated circuit without modifying the layer structure of the integrated circuit.