Strip line radio-frequency unit and packaging structure thereof

Abstract

The invention mainly discloses a packaging structure of a strip line radio-frequency unit, comprising a reflection board and a cover cap, wherein the cover cap and the reflection board are installed stably and fixedly in the form of at least two point contact; the cover cap forms a groove-shaped cavity which is used for accommodating the strip line radio-frequency unit which is fixedly installed on the reflection board, and the cover cap is provided with at least two connection ports which are used for connecting external cables with the cover cap and connecting the external cables with the strip line radio-frequency unit electrically after the external cable passes through the cover cap. The packaging structure is used for packaging power division networks / high-pass networks / low-pass networks / band-pass networks / duplexing networks / combiner networks to form a strip line power divider / a strip line high-pass filter / a strip line low-pass filter / a strip line band-pass filter / a strip line duplexer / a strip line combiner and other strip line radio-frequency units correspondingly. Due to the adoption of a point contact installation mode for the cover cap and the reflection board in the packaging structure, the formed device has preferable passive intermodulation indexes; and the packaging structure is simple in structure, easy to assemble, saved in materials, and beneficial to large-scale batch production.

Description

【Technical field】 [0001] The invention relates to a stripline radio frequency component and its packaging structure, especially suitable for various stripline radio frequency components required by mobile communication systems. 【Background technique】 [0002] With the rapid development of wireless communication technology, the competition among communication equipment manufacturing industries has become very fierce. The eternal theme of competition is: high performance indicators and low cost. [0003] At present, the commonly used RF component packaging structure designed based on the working principle of RF stripline generally adopts the form of a box body formed by fastening the cavity and the cover plate with multiple screws. This installation structure has the following disadvantages: [0004] First of all, multiple screws are used to fasten the cavity and the cover plate in the form of "line contact", which involves many parts, high cost and long assembly time; [000...

AI Technical Summary

Problems solved by technology

[0004] First of all, multiple screws are used to fasten the cavity and the cover plate in the form of "line contact", which involves many parts, high cost and long assembly time;

[0005] Secondly, there are many factors affecting the electrical index, especially the intermodulation index is limited by the fastening characteristics of multiple screws between the cover plate and the cavity. As long as one screw is loose, the passive intermodulation index will be out of control;

[0006] Therefore, due to the price and electrical indicators, the current RF components of this structure are difficult to gain an advantage in the fierce competition

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