Invention Grant
US09379673B2 Distortion cancellation for dual stage carrier-aggregation (CA) low noise amplifier (LNA) non-linear second order products
有权
双级载波聚合（CA）低噪声放大器（LNA）非线性二阶产品的失真消除
- Patent Title: Distortion cancellation for dual stage carrier-aggregation (CA) low noise amplifier (LNA) non-linear second order products
- Patent Title (中): 双级载波聚合（CA）低噪声放大器（LNA）非线性二阶产品的失真消除
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Application No.: US14292330Application Date: 2014-05-30
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Publication No.: US09379673B2Publication Date: 2016-06-28
- Inventor: Chuan Wang , Dongling Pan , Yiwu Tang , Klaas van Zalinge , Muhammad Hassan
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: Qualcomm Incorporated
- Current Assignee: Qualcomm Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Smith Risley Tempel Blaha LLC
- Main IPC: H03F1/22
- IPC: H03F1/22 ; H03F1/32 ; H03F3/19 ; H03F1/26 ; H04L25/03 ; H03F3/193 ; H03F3/24
Abstract:
A device includes a main two-stage low noise amplifier (LNA) configured to amplify a carrier aggregation (CA) communication signal, the main two-stage LNA comprising a first LNA stage and a second LNA stage, an output of the first LNA stage having a first stage second order intermodulation product, the second LNA stage comprising a phase-inverter configured to phase-invert the output of the first LNA stage to generate a second stage phase-inverted output, and an auxiliary LNA stage coupled to the main two-stage LNA, the auxiliary LNA stage configured to cancel the first stage second order intermodulation product.
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Information query
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