Surface-mounted microwave circulator with novel port structure

Abstract

The invention relates to a surface-mounted microwave circulator with novel port structure, wherein, a shell is of semi-open cylindrical cavity structure; the side wall of the shell is provided with three port slot holes; bosses are respectively arranged on the positions on the side wall of the shell, corresponding to the three port slot holes; the semi-open cylindrical cavity of the shell is internally provided with a permanent magnet, a uniform magnetic conducting strip, a ferrite, a central conductor and a temperature compensation strip; the top of the shell is covered with a cover board; the central conductor extends out of the cavity through the port slot holes on the side wall of the shell; the three bosses on the side wall of the shell are provided with through holes, and each through hole is provided with a port pin insulator; each port pin insulator is provided with a port pin; and the three port pins are electrically connected with the central conductor. The package structure obviously improves the reliability of the microwave circulator and obviously enhances the welding qualification rate without changing the performances of the circulator. The surface-mounted microwave circulator has the advantages of small volume, excellent performances, high power handling, wide temperature range and the like, thus being applicable to large-scale production.

Description

technical field [0001] The invention relates to a surface-mounted microwave circulator with a novel port structure, belonging to the technical field of wireless communication equipment. 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 are simple, the thickness of the central conductor of the circulator is usually 0.127-0.254 mm, and the strength is very poor. 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 working performance of the debugged device, but also cause misalignment between the circuit board and the surface mount circulator port pins, virtual soldering, solder failure, and poor welding between...

AI Technical Summary

Problems solved by technology

Although the input and output ports are simple, the thickness of the central conductor of the circulator is usually 0.127-0.254 mm, and the strength is very poor. 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 working performance of the debugged device, but also cause misalignment between the circuit board and the surface mount circulator port pins, virtual soldering, solder failure, and poor welding between the circulator shell and the circuit board during the production line of the end user product and other defects

[0003] In order to keep the position and shape of the port pins unchanged, special forming jigs and cutting jigs are required in production, which affects production efficiency, and special packaging boxes are required during transportation, which increases costs

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