Microwave technology is first applied in communication, radio and television technology. In these fields, microwaves are utilized as a kind of information or carrier of information. In the microwave communications engineering decades of application, found that there is always accompanied by a will cause microwave energy loss, need to try to prevent and eliminate the harmful factors - thermal effects. As early as 1945, someone in the United States proposed the idea of utilizing this thermal effect of microwaves to heat materials. Subsequently, there are a number of people on this subject - microwave heating - carried out a period of exploration, testing and research. Until the late sixties.
Microwave energy is finally used as a source of energy to be utilized for heating, drying, pest control, sterilization, medical and other industrial projects. The first is in the food industry, and the emergence of household microwave ovens to further expand the application of microwave heating technology. Now, microwave heating as a new technology has been highly valued by various disciplines and application development.
Foreign microwave energy applications and academic exchanges have been very active and attention. 1966 in North America, Canada's Alberta (Alberta) City set up the International Microwave Power Institute (referred to as IMPI), an annual symposium, and regular publication of a quarterly journal, "Microwave Power Magazine" (The Joural of Microwave Power). The Joural of Microwave Power").
China in the 70's began to microwave energy application research work, in 1973 began to microwave heating application technology research and microwave heating with the development of magnetron. 1974 and 1980, the Ministry of Electronics Industry held a "national microwave energy to promote the application of technical exchanges," the exchange of microwave academics and application technology. In March 81, approved by the Ministry of four machines, the Ministry of science and technology units of the force, set up - China Electronic Devices Industry Corporation microwave energy promotion and application of the station, responsible for the promotion and application of the national microwave energy organization, design and research work. 1983 October China Electronics Association held the first " National Microwave Energy Application Symposium" was held by the Chinese Institute of Electronics in October 1983. Since then, every two years in the country to choose to promote the application of good areas to take turns to organize microwave application technology exchanges, in order to promote the development of the domestic microwave industry. Each session has a collection of papers published, involving industry, agriculture, medicine, scientific research and other areas of application.
At present, China has been in the leather, wood, color printing, food, paper, chemical, ceramics, pharmaceuticals, tobacco, building materials, rubber, and medical and other industries are gradually using microwave technology, and has achieved good economic benefits. Microwave energy technology as a new means of processing, the technical transformation of various industries and equipment renewal has formed a great impact. Especially at this stage, in front of the operators is to solve the problem of product structure and social demand, to adapt to the social development of the quality of products, varieties of requirements. One of its focus is the lack of technological innovation, quality upgrade lags behind. The emergence of microwave technology to improve product quality, keep up with technological advances, create high value-added products to provide good conditions.