Integrated RF front end with stacked transistor switch

摘要: A monolithic integrated circuit (IC), and method of manufacturing same, that includes all RF front end or transceiver elements for a portable communication device, including power amplifier (PA), matching, coupling filtering network, an antenna switch to couple the conditioned PA signal antenna. An output sensor senses at least voltage amplitude switched by switch, signals control limit in response excessive values sensed output. Stacks multiple FETs series operate as switching device may be used implementation end, apparatus such stacks are claimed subcombinations. iClass architecture is described dissipatively terminates unwanted harmonics signal. preferred embodiment IC two distinct circuits, receive four-way selectably single connection any one four circuits.