Back to results
US 11,967,935 B2Granted
Configurable phase tuned multi-gain LNA architecture
AssigneepSemi Corporation
InventorsEmre Ayranci, Phanindra Yerramilli
Life of this patent
Estimating the term…
Abstract
Methods and systems for a multi gain LNA architecture achieving minimum phase discontinuity between all the different active and passive gain modes that uses different LNA configurations and settings for single and multi-stage LNAs by a configurable combined output matching and phase adjusting circuitry.
Claims22
A device comprising:
- a first gain path with a first gain and a first circuit component;
- a second gain path with a second gain different than the first gain and a second circuit component separate from the first circuit component;
- a phase shift sub-circuit on the second gain path wherein the phase shift sub-circuit includes the second circuit component and the second circuit component performs output matching for the device on the second gain path;
- wherein the second circuit component comprises an inductor;
- and
- wherein the first gain path comprises a first low noise amplifier with a first active device, or the second gain path comprises a second low noise amplifier with a second active device, or the first gain path comprises the first low noise amplifier with the first active device and the second gain path comprises the second low noise amplifier with the second active device.
3 more elements
A device comprising:
- a first gain path with a first gain and a first circuit component;
- a second gain path with a second gain different than the first gain and a second circuit component separate from the first circuit component;
- a phase shift sub-circuit on the second gain path wherein the phase shift sub-circuit includes the second circuit component and the second circuit component performs output matching for the device on the second gain path;
- wherein the first gain path comprises a first low noise amplifier with a first active device, or the second gain path comprises a second low noise amplifier with a second active device, or the first gain path comprises the first low noise amplifier with the first active device and the second gain path comprises the second low noise amplifier with the second active device;
- wherein the phase shift sub-circuit comprises one or more of a PI network or a TEE network;
- and
- wherein the phase shift sub-circuit further comprises switches configured to selectively switch elements of the PI network or TEE network on and off.
4 more elements
A method for adding a phase matching sub-circuit to a circuit with multiple gain paths, the method comprising:
- selecting a gain path of the multiple gain paths;
- determining a phase shift to match a phase of the gain path to phases of other gain paths of the multiple gain paths;
- determining a circuit component on the gain path to include in the phase matching sub-circuit;
- selecting a topology of the phase matching sub-circuit based on the phase shift and the circuit component;
- including the phase matching sub-circuit to the circuit;
- and
- removing an active bypass from the circuit and wherein the gain path is a passive bypass.
4 more elements
Dependencies are inferred from the claim text.