4. Applications of microwave technology
Microwave has become a technical science since 1930s. The formation of microwave technology is marked by the practical application of waveguide tube, and the invention of several forms of microwave electron tube (klystron, magnetron, traveling wave tube, etc.) is another symbol. In the World War II, microwave technology developed by leaps and bounds. Due to the needs of war, the focus of microwave research is focused on radar, which leads to the research and development of microwave components and devices, high-power microwave tubes, microwave circuits and microwave measurement technology. Up to now, microwave technology has become a mature subject both in theory and technology, and is developing in depth continuously.
The solid state of microwave oscillator and the integration of microwave system are two important directions in the development of modern microwave technology. With the development of solid-state microwave devices in power and frequency, the conventional microwave tubes in many microwave systems have been or will be replaced by solid-state oscillators. The development of microwave solid-state oscillators also promotes the research of microwave integrated circuits. It is still a main trend of microwave technology research and development that the frequency is continuously pushed to a higher range.
The development of microwave technology is also reflected in the expansion of its application range. The most important applications of microwave technology are radar and communication. Radar is not only used in national defense, but also used in navigation, meteorology, geodesy, industrial detection and traffic management. Communication applications are mainly modern satellite communication and conventional relay communication. Radio telescopes and microwave accelerators are of great significance to the study of physics and astronomy. Millimeter wave microwave technology provides an effective method for plasma measurement to control thermonuclear reaction. Microwave remote sensing has become an important means to study celestial bodies, meteorology, geodesy and resource exploration. More and more attention has been paid to the research and development of microwave in industrial production, agricultural science, biology and medicine.
Microwave and other disciplines infiltrate into each other and form a number of important interdisciplinary subjects, such as microwave astronomy, microwave meteorology, microwave spectroscopy, quantum electrodynamics, microwave semiconductor electronics, microwave transconductance electronics and so on. The research and application of microwave acoustics has become an active field. The development of microwave optics, especially the development of optical fiber technology since the 1970s, has the significance of technological transformation.
Translated from Elecfans Forum