【作者】 王礼阳； 刘勇； 刘靖琳； 唐小宏；

【Author】 Wang Li-yang;Liu Yong;Liu Jing-lin;Tang Xiao-hong;School of Electronic S1zhcience and Engineering,University of Electronic Science and Technology of China;

【机构】 电子科技大学,电子科学与工程学院；

【摘要】 本文介绍了一种10kHz～40GHz多通道接收机的设计与研究。该接收机主要采用超外差接收机方案,有效地抑制了镜频干扰。该接收机工作频段10kHz～40GHz,噪声系数在10kHz～3GHz小于3.5dB,在3～40GHz小于5dB,采用数控并行TTL的增益控制方式,最大链路增益在10kHz～3GHz大于150dB,在3～40GHz大于80dB。本文针对该接收机关键技术进行了方案设计和详细研究,并进行了实物加工及测试。更多还原

【Abstract】 In this paper, a kind of 10kHz～40GHz multi-channel receiver is designed and researched. This receiver mainly adopts superheterodyne receiver scheme, which can effectively suppress mirror frequency. The receiver has a working band of 10kHz～40GHz, and the noise figure is less than 3.5dB at 10kHz～3GHz and less than 5dB at 3～40GHz. Using the gain control mode of CNC parallel TTL, the maximum link gain is greater than 150dB at 10kHz～3GHz and greater than 80dB at 3～40GHz. The key components of the receiver are designed and analyzed in detail, and the physical production and testing are carried out in this paper.更多还原