| 发明名称 |
LOW NOISE, PROGRAMMABLE GAIN CURRENT BUFFER |
| 摘要 |
A receiver includes LNA-mixer arrangement, a current buffer arrangement and an analog filter arrangement. The LNA-mixer arrangement receives a plurality of input signals and provides a wide-band input match for a specified frequency range of operation. The LNA-mixer arrangement includes a plurality of LNA structures and a plurality of mixer structures where each of the LNA structure path is coupled to a single mixer structure. The LNA-mixer arrangement outputs a first signal. The current buffer arrangement receives the first signal and reduces the Image Rejection (IR) asymmetry between the high frequency portion and the low frequency portion of the first signal as well as provides a gain to the first signal. The current buffer arrangement outputs a second signal. The analog filter arrangement receives the second signals and perform filtering and calibration. |
| 申请公布号 |
US2016056784(A1) |
申请公布日期 |
2016.02.25 |
| 申请号 |
US201414465841 |
申请日期 |
2014.08.22 |
| 申请人 |
MEDIATEK INC. |
发明人 |
Rajapandian Saravanan;Wang Caiyi;Li Jing;Suravarapu Ravikanth;Baskaran Narayanan |
| 分类号 |
H03G3/30 |
主分类号 |
H03G3/30 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A receiver arrangement comprising:
a LNA-mixer arrangement that receives a plurality of input signals and provides a wide-band input match for a specified frequency range of operation, the LNA-mixer arrangement includes a plurality of LNA structures and a plurality of mixer structures , the LNA-mixer arrangement outputs at least a first signal; a current buffer arrangement that receives the first signal and reduces the Image Rejection (IR) asymmetry between the high frequency portion and the low frequency portion of the first signal as well as provides a gain to the first signal, wherein the current buffer arrangement outputs at least a second signal; and an analog filter arrangement that receives the second signal and perform filtering and calibration. |
| 地址 |
Hsin-Chu TW |
