Rf switch stack with charge redistribution

A field effect transistor (FET) switch stack circuit comprising:

• i) a stacked configuration of series-connected FET transistors;
• ii) a drain/source charge redistribution resistive ladder comprising series-connected drain/source charge redistribution resistors and a set of one or more drain/source tapping points in correspondence with drains or sources of FET transistors of the series-connected FET transistors;
• iii) a body charge redistribution resistive ladder comprising series-connected body charge redistribution resistors and a set of one or more body tapping points in correspondence with bodies of FET transistors of the series-connected FET transistors;
• and
• iv) a drain-body bridge network configured to selectively couple/decouple the set of one or more drain/source tapping points with/from the set of one or more body tapping points, thus selectively coupling/decoupling drains or sources of the FET transistors with/from bodies of the FET transistors to redistribute charges throughout the FET transistors.

A radio frequency (RF) switch stack circuit comprising:

• a stack of FET transistors connected in a series configuration and configured to be coupled to an antenna to receive an RF signal;
• a body resistive ladder comprising body resistors coupled to bodies of FET transistors of the stack of FET transistors;
• a drain-source resistive ladder comprising drain-source resistors coupled to drain/sources of FET transistors of the stack of FET transistors;
• a charge redistribution resistive ladder comprising charge transfer resistors and at least one tapping point;
• and
• a bridge network configured to selectively couple/decouple the at least one tapping point of the charge redistribution resistive ladder with/from the drain-sources and/or bodies of the transistors of the stack of transistors during a portion of a period of the RF signal in order to selectively source current from the charge redistribution resistive ladder and deliver said current to the drain-source resistive ladder and/or sink current from the body resistive ladder and deliver said current to the charge redistribution resistive ladder.