C波段固态功率放大器设计与实现

发布时间：2019-04-16 13:56

【摘要】：微波固态功率放大器被广泛应用在电子对抗、卫星通信、移动通信、导航、电子对抗、雷达系统以及各种电子装备中。它具有工作电压低、噪声低、效率高和线性度好以及尺寸小等特点。当前随着微波通信和军事领域新标准新技术的发展,市场日益要求我们提高微波功率放大器的性能,并且具有更高的输出功率、效率和可靠性。本文是在功率放大器研究的背景以及意义下,通过查阅大量文献综述总结和归纳了功率放大器的发展现状以及理论基础,如功率放大器的分类、特点、常用技术指标、稳定性等战术指标后,最终对功率放大器的偏置电路和匹配电路的实验方案流程进行了设计。并通过对具体的实验步骤进行了设计,选取了静态工作点,对偏置电路完成了设计和稳定性的分析,最后根据分析结果来设计匹配电路。设计完成以后,对放大器进行了仿真实验,该实验为小信号S参数仿真以及带信号非线性特性仿真;单管功率放大器仿真实验结束以后,设计了双管平衡功率放大器,并将单管功率放大器和双管平衡功率放大器做了对比优化,最终根据分析结果来设计版图。本文通过对单管和双管的对比是本次课题研究的创新点。第四章是测试,对最终电路的关键射频指标进行调式。
[Abstract]:Microwave solid-state power amplifiers are widely used in electronic countermeasures, satellite communications, mobile communications, navigation, electronic countermeasures, radar systems and various electronic equipment. It has the characteristics of low working voltage, low noise, high efficiency, good linearity and small size. With the development of microwave communication and new standards and technologies in military field, the market increasingly requires us to improve the performance of microwave power amplifier, and has higher output power, efficiency and reliability. Under the background and significance of power amplifier research, this paper summarizes and summarizes the development status and theoretical basis of power amplifier, such as the classification, characteristics, common technical indexes of power amplifier, by consulting a large number of literature review. After the stability and other tactical indicators, the bias circuit and matching circuit of the power amplifier are designed. Through the design of the concrete experimental steps and the selection of the static working point, the design and stability analysis of the bias circuit is completed. Finally, the matching circuit is designed according to the analysis results. After the design is completed, the simulation experiment of the amplifier is carried out, which is small signal S-parameter simulation and the simulation of nonlinear characteristics with signal. After the simulation experiment of the single-transistor power amplifier, the double-transistor balanced power amplifier is designed, and the single-transistor power amplifier and the double-transistor balanced power amplifier are compared and optimized. Finally, the layout is designed according to the analysis results. Through the comparison of single tube and double tube, this paper is the innovation point of this subject. The fourth chapter is the test, the key radio frequency index of the final circuit is adjusted.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN722.75

【相似文献】