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US 12,119,814 B2Granted
Gate resistive ladder bypass for RF FET switch stack
AssigneepSemi Corporation
InventorsRavindranath D. Shrivastava, Alper Genc
Life of this patent
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Abstract
A FET switch stack has a stacked arrangement of FET switches, a gate resistor network with ladder resistors and common gate resistors, and a gate resistor bypass arrangement. The bypass arrangement has a first set of bypass switches connected across the gate resistors and a second set of bypass switches connected across the ladder resistors. Bypass occurs during at least a portion of the transition state of the stacked arrangement of FET switches.
Claims19
A FET switch stack comprising:
- a stacked arrangement of FET switches;
- a gate resistor network comprising one or more ladder resistors connected to gate terminals of the FET switches;
- one or more common gate resistors connected to the gate resistor network;
- and
- a gate resistor bypass arrangement comprising a first set of bypass switches connected across corresponding common gate resistors and a second set of bypass switches connected across corresponding ladder resistors,
- wherein each bypass switch in the first set of bypass switches comprises an nMOS and pMOS transistor pair connected in series and each bypass switch in the second set of bypass switches comprises an nMOS and pMOS transistor pair connected in series.
3 more elements
A FET switch stack comprising:
- a stacked arrangement of FET switches;
- a gate resistor network comprising ladder resistors connected to gate terminals of the FET switches;
- one or more common gate resistors connected to the gate resistor network;
- and
- a gate resistor bypass arrangement comprising a first set of bypass switches connected across corresponding common gate resistors and a second set of bypass switches connected across corresponding ladder resistors,
- wherein the gate resistor bypass arrangement is configured to bypass a first portion of the ladder resistors and not bypass a remaining portion of the ladder resistors.
3 more elements
Dependencies are inferred from the claim text.