发明名称 |
Low noise amplifiers for carrier aggregation |
摘要 |
Low noise amplifiers (LNAs) supporting carrier aggregation are disclosed. In an exemplary design, an apparatus includes first and second amplifier stages, e.g., for a carrier aggregation (CA) LNA or a multiple-input multiple-output (MIMO) LNA. The first amplifier stage receives and amplifies an input radio frequency (RF) signal and provides a first output RF signal to a first load circuit when the first amplifier stage is enabled. The input RF signal includes transmissions sent on multiple carriers at different frequencies to a wireless device. The second amplifier stage receives and amplifies the input RF signal and provides a second output RF signal to a second load circuit when the second amplifier stage is enabled. Each amplifier stage may include a gain transistor coupled to a cascode transistor. |
申请公布号 |
US9154356(B2) |
申请公布日期 |
2015.10.06 |
申请号 |
US201213590423 |
申请日期 |
2012.08.21 |
申请人 |
QUALCOMM Incorporated |
发明人 |
Tasic Aleksandar Miodrag;Davierwalla Anosh Bomi |
分类号 |
H04L27/06;H04L27/26;H03G3/20;H03F1/22;H03F3/193;H03F3/68;H03F3/72 |
主分类号 |
H04L27/06 |
代理机构 |
|
代理人 |
Mobarhan Ramin |
主权项 |
1. An apparatus comprising:
a first amplifier stage configured to be independently enabled or disabled, the first amplifier stage further configured to receive and amplify an input radio frequency (RF) signal and provide a first output RF signal to a first load circuit when the first amplifier stage is enabled, the input RF signal employing carrier aggregation comprising transmissions sent on multiple carriers at different frequencies to a wireless device, the first output RF signal including at least a first carrier of the multiple carriers; and a second amplifier stage configured to be independently enabled or disabled, the second amplifier stage further configured to receive and amplify the input RF signal and provide a second output RF signal to a second load circuit when the second amplifier stage is enabled, the second output RF signal including at least a second carrier of the multiple carriers different than the first carrier. |
地址 |
San Diego CA US |