Electromagnetic driving device and microwave switch

Abstract

The invention relates to the technical field of microwave switches, and discloses an electromagnetic driving device and a microwave switch, the electromagnetic driving device comprises a sleeve, an iron core assembly is arranged in the sleeve, and the iron core assembly comprises a movable iron core, an upper static iron core arranged above the movable iron core and a lower static iron core arranged below the movable iron core; magnetic steel is arranged on the periphery of the movable iron core in the sleeve, and the movable iron core penetrates through the magnetic steel; the upper end of the movable iron core is provided with an upper magnetism isolating gasket and an upper guide rod, the upper guide rod penetrates through the upper static iron core, the lower end of the movable iron core is provided with a lower magnetism isolating gasket and a lower guide rod, the lower guide rod penetrates through the lower static iron core, the periphery of the upper static iron core is sleeved with an upper coil assembly, and the periphery of the lower static iron core is sleeved with a lower coil assembly. In actual use, power does not need to be supplied to the coil all the time to keep the microwave channel of the microwave switch in a working state, and the power consumption of the electromagnetic driving device and the microwave switch in use can be reduced.

Description

technical field [0001] The invention relates to the technical field of microwave switches, in particular to an electromagnetic drive device and a microwave switch. Background technique [0002] Microwave switches are commonly used devices for channel switching in the field of mobile communications. Microwave switches can be divided into electromechanical switches and solid-state switches according to the working principle. Electromechanical switches rely on the movement of mechanical parts to realize the conduction and shutdown of signal channels. Solid-state switches can be divided into FET and PIN diodes according to the different switching components used. category. [0003] The channel switching in the electromechanical switch is mostly realized by the attraction of the coil and the electromagnet, that is, the magnetic field is generated by energizing the coil, and the magnetic field will attract the electromagnet to move up and down. When the transmission part capable ...

AI Technical Summary

Problems solved by technology

[0004] 1) The leakage of the magnetic field is large, which is easy to cause interference to the surrounding magnetic sensitive equipment;

[0005] 2) The utilization rate of magnetic energy is low, the volume of permanent magnet material required to achieve the same holding force or driving force is larger, and the energy consumption of the driving coil is greater;

[0006] 3) The size is large, and it is a horizontally expandable structure, which is not conducive to the miniaturization of multi-throw products

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