| 一种低功耗、宽变增益范围、极小噪声恶化的1.45GHz LNA |
| |
| 引用本文： | 林敏,王海永,李永明,陈弘毅.一种低功耗、宽变增益范围、极小噪声恶化的1.45GHz LNA[J].半导体学报,2004,25(8). |
| |
| 作者姓名： | 林敏 王海永 李永明 陈弘毅 |
| |
| 作者单位： | 清华大学微电子学研究所,北京,100084 |
| |
| 摘 要： | 给出了一种新型的低噪声放大器的变增益方案.与传统的噪声恶化很严重的低噪声放大器变增益方案相比,该方案以3dB为步长,可以得到25dB的变增益范围,并且在低增益时的噪声恶化只有0.3～0.5dB.此外,这种变增益方案与传统方案相比,还有不需要额外功耗的优点.
|
| 关 键 词： | 低噪声放大器 变增益 噪声恶化 低功耗 |
A 1.45GHz LNA with Low Power,Wide Variable Gain Range and Ultra Low Noise Degradation |
| |
| Abstract: | A LNA with a novel variable gain solution is presented. Compared with the conventional variable gain solutions of LNA ,which have more noise degradations when in low gain mode ,this solution gives about 25dB variable gain range in 3dB steps,which would cause ultra low noise figure degradation by 0.3～ 0.5dB. In addition,extra power consumption is not needed by this solution compared with other solutions. |
| |
| Keywords: | LNA variable gain noise degradation low power |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《半导体学报》浏览原始摘要信息 |
|
点击此处可从《半导体学报》下载全文 |
|
