Conical inductor packaging structure and packaging method thereof

Abstract

The invention belongs to the field of microwave and component packaging, and particularly relates to a conical inductor packaging structure and a packaging method thereof. The conical inductor packaging structure comprises an upper wedge-shaped body and a lower wedge-shaped body which are arranged in a symmetrical mode, an upper wedge-shaped body and lower wedge-shaped body combination is providedwith a conical cavity which contains a conical inductor, the lower surface of the lower wedge-shaped body is plated with a first electrode and a second electrode, the lower wedge-shaped body is provided with a left through hole and a right through hole, a first pin and a second pin of the conical inductor are connected with the first electrode and the second electrode of the lower surface of thelower wedge-shaped body through the left through hole and right through hole respectively, and the first electrode and the second electrode are directly welded to a peripheral circuit. The packaging structure can change the bandwidth of the conical inductor on the condition that the geometric size of an existing conical inductor is not changed, and meanwhile the packaging structure can make the conical inductor welded through a surface-mount technology.

Description

technical field [0001] The invention belongs to the field of microwave and component packaging, and in particular relates to a packaging structure of a tapered inductor and a packaging method thereof. Background technique [0002] In microwave radio frequency circuits, it is usually necessary to select an inductor to isolate the radio frequency circuit and the DC power supply circuit to prevent mutual interference between signals. At the same time, microwave radio frequency circuits have the characteristics of wide bandwidth and high frequency. Ordinary inductors cannot meet the wide bandwidth. Requirements, so the tapered inductance is usually selected. Compared with ordinary inductors, tapered inductors can isolate radio frequency signals with a certain bandwidth due to their special geometric structures, but the bandwidth of tapered inductors mainly depends on their own geometric structures, which can be realized by adjusting the existing geometric structures. Wider band...

AI Technical Summary

Problems solved by technology

[0002] In microwave radio frequency circuits, it is usually necessary to select an inductor to isolate the radio frequency circuit and the DC power supply circuit to prevent mutual interference between signals. At the same time, microwave radio frequency circuits have the characteristics of wide bandwidth and high frequency. Ordinary inductors cannot meet the wide bandwidth. Requirements, so the tapered inductance is usually selected

Compared with ordinary inductors, tapered inductors can isolate radio frequency signals with a certain bandwidth due to their special geometric structures, but the bandwidth of tapered inductors mainly depends on their own geometric structures, which can be realized by adjusting the existing geometric structures. Wider bandwidth has certain limitations and difficulties

Moreover, the current tapered inductors are mainly produced by foreign manufacturers and most of them are "flying lead" structures. There are huge difficulties in the assembly process, and it is impossible to use the existing chip technology for automatic welding.

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