With the help of the ads ( advanced design system ) , this paper has designed and manufactured a lna ( low noise amplifier ) working at low temperature 另外本文还运用ads ( advanceddesignsystem )设计了uhf频段的低温低噪声放大器。
But for the short of time we just test the lange coupler and the low noise amplifier , more work such bugging and test need to be down in the future 由于时间的关系,目前仅进行了兰格耦合器和单级放大器模块的测试,进一步的调试和改进将在以后进行。
In the fifth chapter the shunt negative feedback is presented , and a low noise amplifier whose operating frequency is 0 . 2ghz 2ghz is developed 第五章分析了漏极并联负反馈在宽带低噪声放大器设计中的作用和原理,并设计、制作了0 . 2ghz 2ghz低噪声放大器。
Methods of measurement for equipment used in digital microwave radio transmission systems ; part 3 : measurements on satellite earth stations ; section 4 : low noise amplifier 数字微波无线电发射系统使用设备的测量方法.第3部分:卫星地面站的测量.第4节:低噪声放大器
Methods of measurement for equipment used in digital microwave radio transmission systems . part 3 : measurements on satellite earth stations . section 4 : low noise amplifier 数字微波无线电发射系统使用设备的测量方法.第3部分:卫星地面站的测量.第4节:低噪声放大器
Uses double - hybrid design forward : first , low - noise amplifier module , then power double amplifier module or gaas power double amplifier module , while using independent module return 正向采用双模块设计，第一级采用低噪音放大模块，第二级采用功率倍增或砷化镓功率倍增模
In the forth chapter the series negative feedback and interstage mismatching are presentation , and a low noise amplifier whose operating frequency is 1 . 5ghz 1 . 8ghz is developed 第四章详细介绍了源极串联负反馈和级间失配法,并设计和制作了1 . 5ghz 1 . 8ghz低噪声放大器。
From chapter three to chapter five , the three key components of the system : millimeter - wave phase locked sources , multiple frequency local source , low noise amplifier are designed and tested 第三章至第五章分别介绍了毫米波锁相源、二倍频本振源和低噪声放大器三个系统关键的单元电路的设计过程和测试结果。
Low noise amplifier is widely used in front - end of a transceiver in mobile communication , electronic counterwork and other fields , whose performance makes significant effect on the wireless transceiver 低噪声放大器( lna )广泛应用于通讯、电子对抗等系统的接收装置的前端,其性能的好坏对整个接收装置有重要的影响。
The major task of this dissertation is to develop a power amplifier module and a low noise amplifier for a rf communication system which work in the frequency from 750mhz - 810mhz 本文的主要任务是研制出适用于一工作频率在750 ~ 810mhz射频收发系统的放大模块,其中包括发射链路中的功率放大模块和接收链路中的低噪声放大模块。
