Distributed amplifier with improved stabilization
AssigneeHittite Microwave Corporation
InventorKeith Benson
Life of this patent
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Abstract
A distributed amplifier with improved stabilization includes an input transmission circuit, an output transmission circuit, at least one cascode amplifier coupled between said input and output transmission circuits. Each cascode amplifier includes a common-gate configured transistor coupled to the output transmission circuit, and a common-source configured transistor coupled between the input transmission circuit and the common-gate configured transistor. The distributed amplifier also includes a non-parasitic resistance and capacitance coupled in series between a drain and a gate of at least one of the common-gate configured transistors for increasing the amplifier stability.
Claims15
A distributed amplifier with improved stabilization, comprising:
- an input transmission circuit;
- an output transmission circuit;
- at least one cascode amplifier coupled between said input and output transmission circuits, each cascode amplifier including a common-gate configured transistor coupled to the output transmission circuit, and a common-source configured transistor coupled between the input transmission circuit and the common-gate configured transistor, each cascode amplifier further including one or more additional common-gate transistors DC-coupled between each of the common-gate configured transistors and common-source configured transistors;
- and
- an amplifier stability a feedback network including a non-parasitic resistance and capacitance coupled in series between a drain and a gate of at least one of the common-gate configured transistors for increasing the amplifier stability.
A distributed amplifier with improved stabilization, comprising:
- an input transmission circuit;
- an output transmission circuit;
- at least two cascode amplifiers coupled between said input and output transmission circuits, each cascode amplifier including a common-gate transistor coupled to the output transmission circuit, and a common-source transistor coupled between the input transmission circuit and the common-gate transistor;
- and
- a feedback network including a resistor and capacitor coupled between a drain and a gate of at least one of the common-gate transistors for increasing the stabilization of at least one common-gate transistor.
Dependencies are inferred from the claim text.