Electromagnetic shielding device, microwave component, signal transmission device and airtight brazing method

Abstract

The invention discloses an electromagnetic shielding device of a microwave assembly, which comprises an upper box body, a lower box body and an inner cover plate, wherein the upper box body is provided with a first opening, and the first opening is opposite to the bottom surface of the upper box body; the lower box body is provided with a second opening, and the second opening is opposite to the bottom surface of the lower box body; the inner cover plate is arranged between the upper box body and the lower box body; the bottom surface of the upper box body extends towards the first opening to form a first partition wall, the upper surface of the inner cover plate is provided with a first connecting part, and the extension tail end of the first partition wall is fixedly connected with the first connecting part in a detachable manner; the bottom surface of the lower box body extends towards the second opening to form a second partition wall, the lower surface of the inner cover plate is provided with a second connecting part, and the extension tail end of the second partition wall is fixedly connected with the second connecting part in a detachable manner; the periphery of the first opening is provided with a first depressed part, the periphery of the second opening is provided with a second depressed part, and the first depressed part and the second depressed part form a solder accommodating groove; and the inner cover plate is welded and connected with the edge of the first opening and the edge of the second opening.

Description

technical field

[0001] The invention belongs to the field of microwave technology, and in particular relates to an electromagnetic shielding device of a microwave component, a microwave component, a signal transmission device and an airtight brazing method. Background technique

[0002] With the development of semiconductor technology, multi-channel microwave components are widely used in various fields. Due to the leakage and crosstalk of the microwave signals between the channels of multi-channel microwave components, it is necessary to isolate the channels; there are a large number of bare chips in the microwave components, in order to ensure their long-term service reliability in different environments, microwave components must be It is hermetically sealed to prevent adverse factors in the external environment such as oxygen, water vapor, metal particles, etc. from damaging the bare chip.

[0003] Different application fields put forward different application requireme...

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