Method for miniaturizing delay line design based on low-temperature co-firing ceramic process

The invention discloses a method for miniaturizing a delay time design by adopting a low-temperature co-firing ceramic process. By using the method, the difficult problems that the volume size is difficult to decrease in a conventional delay line design, the performance of a delay line is influenced by the resonance oscillation of a cavity more greatly, the chromatic dispersion phenomenon is caused by the intercoupling between the delay lines, and the like, are solved. In a routine delay line design adopting a way of a switch as well as a transmission line, the transmission line generally adopts the way of a plane microstrip line which is easy to process, but due to the semi-open field distribution of the microstrip line, the microstrip line can be caused to be easily influenced by the resonance oscillation of the cavity of the transmission line, further, the intercoupling is serious when the compact wiring is carried out between transmission lines, and the more obvious chromatic dispersion characteristic is caused. According to the method, a strip line which is not easy to influence is used as a main way of a delay transmission line; the topological structure of the delay line is optimized; by adopting a microwave multilayer circuit design technique, a switch control circuit and a microwave delay circuit are comprehensively designed on a low-temperature co-fired ceramic baseplate; the layout area of the circuits is greatly reduced; and the circuits also have better microwave performance synchronously.