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US 12,184,248 B2Granted
RFFE LNA topology supporting both noncontiguous intraband carrier aggregation and interband carrier aggregation
AssigneepSemi Corporation
InventorsEmre Ayranci, Miles Sanner, Phanindra Yerramilli
Life of this patent
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Abstract
A receiver topology for supporting various combinations of interband carrier aggregation (CA) signals, intraband non-contiguous CA and non-CA signals having different combinations of signals aggregated therein.
Claims22
A method for selectively amplifying a plurality of input signals in a low noise amplifier (LNA) circuit, including:
- (a) receiving a first input signal at an input of a first LNA and selectively providing an amplified first output signal to a first circuit output;
- (b) receiving a second input signal at an input of a second LNA and selectively providing an amplified second output signal to a second circuit output;
- and
- (c) receiving a third input signal in a split LNA and selectively providing an amplified third output signal to the first circuit output and/or an amplified fourth output signal to the second circuit output.
1 more element
A method for selectively amplifying a plurality of input signals in a low noise amplifier (LNA) circuit, including:
- (a) receiving a first input signal at an input of a first LNA and selectively providing an amplified first output signal to a first circuit output;
- (b) receiving a second input signal at an input of a second LNA and selectively providing an amplified second output signal to a second circuit output;
- and
- (c) receiving a third input signal in a split LNA and selectively providing an amplified third output signal to the first circuit output and/or an amplified fourth output signal to the second circuit output;
- (d) configuring the split LNA to including a first cascode amplifier stage and a second cascode amplifier stage, each cascode amplifier stage having an input configured to receive the third input signal;
- (e) configuring the first cascode amplifier stage to selectively provide an amplified third output signal to the first circuit output;
- and
- (f) configuring the second cascode amplifier stage to selectively provide an amplified fourth output signal to the second circuit output.
5 more elements
Dependencies are inferred from the claim text.