0 写在前面
2023 五一快乐,大家~~
雷达发射与接收机设计主要影响雷达方程中平均功率、系统温度和系统损失。
1 发射机
1.1 基本介绍
理想发射机应具有以下性质:需要折中。
简化的雷达发射与接收系统的框图:
1.2 高功率放大管
高功率发射管框图:
Klystron – High Power Amplifier:
Klystron工作原理:
Example – S-Band Klystron:
MIT/LL Millstone Hill Radar Klystron Tubes (Vacuum Devices):
How Big are High Power Klystron Tubes ? Millstone Hill Radar Transmitter Room:
行波管:
Photograph of Traveling Wave Tubes Another Type of Tube Amplifiers:
Crossed Field Amplifier (CFA):
Crossed Field Amplifier实例:
Comparison of Different Types of High Power Amplifier Tubes:
Coaxial Cavity Magnetron:
Coaxial Magnetrons:
Other Types of High Power Amplifiers:
1.3 Solid State RF Power Amplifiers
Solid State Power Transistors Available Commercial Devices:
Solid State RF Power Amplifiers:
Uses of Solid State Amplifiers in Radar:
Solid State Radar Examples - PAVE PAWS:
Solid State Radar Examples - TPS-59:
Solid State Radar Examples - RAMP:
Example of Solid State Transmitter: Radar Surveillance Technology Experimental Radar (RSTER)。
Average Power Output Versus Frequency:
Types of High Power Amplifiers:
Methods of Power Amplification:
2 接收机和发射波形产生器
Radar Transmitter/Receiver Timeline:
Radar Receiver:
Shared Functionality in Waveform Generation and Receiver:共享变频、放大、滤波。
雷达变频概念:
波形产生与接收的简化框图:
雷达接收机框图:在确定雷达测量的噪声水平时,从天线到第一放大器的部件是最重要的。
3 其他发射/接收子系统
3.1 双工器
双工器工作原理:
双工器:
Example - Balanced Duplexer:发射状态。
Example - Balanced Duplexer:接收状态。
3.2 其他发射子系统
脉冲调制器的基本单元:
“Crowbars”:
3.3 波导和传输线
不同波导配置:
Flexible and Ridged Waveguide:
Waveguide Cutoff Wavelength / Frequency:
Waveguide Subsystems:
Rotary Joint:
Stripline Transmission Line:
Microstrip Transmission Line:
Comparison of Transmission Line and Waveguide Characteristics:
X Band Slotted Waveguide Antenna: For Commercial Airborne Weather Radar。
3.4 微波集成电路技术
Introduction to Microwave Integrated Circuit (MIC) Technology:
Hybrid Microwave Integrated Circuit:
Example - Microwave Integrated Circuit: MIC Power Amplifier used in TPS-59 radar。
Example - Microwave Integrated Circuit: S-Band T/R Module。
Layout of a Typical Monolithic Microwave Integrated Circuit (MMIC):
Monolithic Microwave Integrated Circuits (MMIC) Receiver:
Integration into 64 Element S-Band Subarray:
X-Band T/R Module Using MMIC Technology:
4 雷达发射与接收架构
Radar Transmitter-Receiver Architectures:
Radar Transmitter-Receiver Architectures:
Radar Antenna Architecture Comparison:
Active Array Radars:
Block Diagram of Active Radar Array Using T/R Modules:
Transmit / Receive (T /R) Module Configuration:
Power Amplification:
Example of Power Amplification in a T/R Module:
Array Radar - Digital on Receive:
Array Radar - Digital on Transmit & Receive:
5 总结讨论
Summary:
Summary (continued):
6 参考文献
[1] 百度翻译
[2] MIT 公开课: Radar Systems Engineering