摘要
介绍了一种应用于卫星通信的Ka频段低噪声接收前端的设计方法。通过合理选择器件组合和电路形式,优化输入连接和电路级间匹配,最终研制完成了Ka频段低噪声接收前端。接收前端的接收信号频率在30 GHz附近。在0.8 GHz工作带宽内,噪声系数小于2.2 dB,增益大于60 dB,带内增益波动小于1 dB。3套样机的测试结果验证了设计的有效性。
The design of a low noise Ka- band receiver front - end used in satcom is presented. Through appropriate choice of components and circuits form and optimiziation of input port matching circuits, a low noise Ka - band receiver front - end is realized. The frequency is at 30 GHz. In 0.8 GHz frequency bandwidth, the NF （Noise Figure） is less than 2.2 dB,the gain is more than 60 dB and gain fluctuation is less than 1dB. The test result of 3 sets of samples demonstrate the validity of design.
出处
《电讯技术》
北大核心
2011年第6期134-137,共4页
Telecommunication Engineering
关键词
卫星通信
KA频段
低噪声
接收前端
satellite communication
Ka - band
low noise
receiver front-end
