Surface-mounted microwave circulator

Abstract

The invention relates to a surface-mounted microwave circulator. The surface-mounted microwave circulator comprises a shell and a cover plate on the shell. The shell is of a semi-open cylindrical cavity structure, the side wall of the shell is provided with three openings, a gasket, a lower ferrite, a center conductor, an upper ferrite, a uniform-magnetism conducting plate, a permanent magnet and a temperature compensation plate are sequentially placed in the semi-open cylindrical cavity of the shell, the center conductor penetrates through the openings in the side wall of the shell to stretch out of the cavity, and columnar connectors are welded to the ends of the center conductor to form columnar connector ports. Through the design and welding installation of the center conductor and the columnar connectors, the flatness of the columnar connectors and the flatness of the bottom of the circulator can be automatically regulated. The single-magnet magnetic circuit structure design is adopted in the permanent magnet of the circulator. On the basis that the performance of a device is not changed by the packaging structure, the reliability of the microwave circulator is obviously improved, and the welding percent of pass is obviously increased. The circulator has the advantages of being small in size, good in performance, large in power handling, wide in temperature range and the like.

Description

technical field [0001] The invention relates to a novel surface-mounted microwave circulator, which belongs to the technical field of wireless communication. Background technique [0002] At present, the surface mount microwave circulators produced at home and abroad generally adopt the input and output pins in the form of "gull wings", which are formed by extending the "Y" arm of the central conductor and bending it in an "L" shape. Although the input and output ports of this form are simple, the thickness of the center conductor is usually 0.127-0.254 mm, and the strength is very poor, while the total length of the pins is between 7-10 mm, and the size and shape are easy to change during production and transportation. , This will not only affect the debugged working performance, but also cause defects such as dislocation of the surface circulator on the production line of the end user's product, virtual welding, welding failure, and poor welding of the shell and the circui...

AI Technical Summary

Problems solved by technology

Although the input and output ports of this form are simple, the thickness of the center conductor is usually 0.127-0.254 mm, and the strength is very poor, while the total length of the pins is between 7-10 mm, and the size and shape are easy to change during production and transportation. This will not only affect the debugged work performance, but also cause defects such as dislocation of the surface circulator on the production line of the end user's product, false welding, failure to weld, poor welding of the shell and the circuit board, etc.

In order to keep the size and shape of the port from deformation, special forming jigs and cutting jigs are required in production, resulting in low production efficiency, and special packaging boxes are required during transportation to increase costs

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