电子科技
電子科技
전자과기
IT AGE
2012年
6期
100-103
,共4页
低噪声放大器%宽频带%增益平坦度
低譟聲放大器%寬頻帶%增益平坦度
저조성방대기%관빈대%증익평탄도
low-noise amplifier%wideband%gain flatness
随着光纤通信、卫星通信向着宽频带方向发展，要求放大器的带宽也就越来越宽。文中设计了一种低噪声放大器，该放大器具有较低的噪声系数，同时工作频带较宽。增益平坦度在工作频段内控制在约1dB，另外该低噪声放大器的输入输出匹配和稳定性良好。
隨著光纖通信、衛星通信嚮著寬頻帶方嚮髮展，要求放大器的帶寬也就越來越寬。文中設計瞭一種低譟聲放大器，該放大器具有較低的譟聲繫數，同時工作頻帶較寬。增益平坦度在工作頻段內控製在約1dB，另外該低譟聲放大器的輸入輸齣匹配和穩定性良好。
수착광섬통신、위성통신향착관빈대방향발전，요구방대기적대관야취월래월관。문중설계료일충저조성방대기，해방대기구유교저적조성계수，동시공작빈대교관。증익평탄도재공작빈단내공제재약1dB，령외해저조성방대기적수입수출필배화은정성량호。
In recent years, with the development of optical and satellite communication toward broadband, the bandwidth of the filter is increasingly wide. A low-noise amplifier, which owns a very low noise figure （NF） and a wide frequency band, is designed in this paper. The LNA owns a low gain flatness, which is less than 1 decibel. The matching of the input and output of this LNA and its stability are well.
