一种2700 MHz高精度真对数放大器  

A 2 700 MHz High Precision True Logarithmic Amplifier

作　　者：刘登学[1] 庞佑兵[1] 杨帆[1] 杨超[1] LIU Dengxue;PANG Youbing;YANG Fan;YANG Chao(The 24th Research Institute of China Electronics Technology Group Corporation,Chongqing400060,P.R.China)

机构地区：[1]中国电子科技集团公司第二十四研究所,重庆400060

出　　处：《微电子学》2020年第4期495-498,共4页Microelectronics

摘　　要：提出了一种高频率、高精度真对数放大器。采用检波对数放大信号调节限幅信号的结构进行设计,并基于SMT工艺进行制作。结果表明,该对数放大器的最高工作频率可达2 700 MHz,带宽范围为170~2 700 MHz,输入信号动态范围≥60 dB,对数精度≤±1.0 dB,功耗≤0.5 W。该对数放大器适用于雷达、声纳、通讯或电子对抗等领域。A high frequency high precision true logarithmic amplifier was presented. Based on the SMT process, a structure using logarithmic amplification signal to adjust the limiting signal was designed. The results showed that the maximum operating frequency of the logarithmic amplifier reached 2 700 MHz, the bandwidth range was 170~2 700 MHz, the input signal wide-dynamic range was more than 60 dB, the logarithmic accuracy was less than ±1.0 dB, and the power consumption was less than 0.5 W. The logarithmic amplifier could be applied in the applications such as radar, sonar, communication or electronic countermeasure.

关 键 词：高频率 真对数放大器 动态范围 对数精度 

分 类 号：TN722.14[电子电信—电路与系统]