| 发明名称 |
DISTORTION CANCELLATION FOR DUAL STAGE CARRIER-AGGREGATION (CA) LOW NOISE AMPLIFIER (LNA) NON-LINEAR SECOND ORDER PRODUCTS |
| 摘要 |
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. |
| 申请公布号 |
US2015349724(A1) |
申请公布日期 |
2015.12.03 |
| 申请号 |
US201414292330 |
申请日期 |
2014.05.30 |
| 申请人 |
QUALCOMM Incorporated |
发明人 |
Wang Chuan;Pan Dongling;Tang Yiwu;van Zalinge Klaas;Hassan Muhammad |
| 分类号 |
H03F1/32;H03F1/26;H04L25/03;H03F3/19 |
主分类号 |
H03F1/32 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A device, comprising:
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. |
| 地址 |
San Diego CA US |
