A low-loss flat transmission line

Abstract

The present invention proposes a low-loss flat transmission line, which includes a bendable part and a non-bendable part, and the bendable part and the non-bendable part share an intermediate layer; the intermediate layer includes at least two dielectric layers, at least one An intermediate connecting layer and at least one adhesive layer, each connecting layer is positioned between two dielectric layers, and each bonding layer is positioned between two dielectric layers or between the dielectric layer and the connecting layer for bonding; the non-bending The upper and lower surfaces of the middle layer of the folding part are respectively provided with a first connection layer and a second connection layer, and the upper and lower surfaces of the middle layer of the bendable part are respectively provided with a first flexible conductive connection layer and a second flexible conductive connection layer, respectively connected The first connection layer and the second connection layer are electrically connected; insulating layers are provided on the surfaces of the first connection layer and the second connection layer away from the intermediate layer. The transmission line of the present invention has high dynamic bending performance, long service life, easy processing and can meet market demands.

Description

technical field [0001] The invention relates to the field of communication electronic signal transmission, in particular to a low-loss flat transmission line for transmitting signals and energy, which can be used for signal transmission in the field of communication electronics such as mobile phones, tablet computers, and computers that require high transmission signals. Background technique [0002] In the CN103117440B invention patent of the Chinese Patent Office, a low-loss flat transmission line is disclosed, including a multi-layer connection layer, a dielectric layer arranged between the multi-layer connection layers, and a bonding layer between the connection layer and the dielectric layer. For the adhesive layer, in order to enable the transmission line to shield the leakage or interference of internal and external signals, a plurality of via holes are opened between the first connection layer and the second connection layer, and the via holes are evenly distributed i...

AI Technical Summary

Problems solved by technology

Since the transmission line after lamination of multi-layer materials has a certain thickness, the connection layer is generally made of conductive materials such as metal, which has high hardness, and the via holes are evenly distributed throughout the entire length of the transmission line, so the The dynamic bending performance of the transmission line is poor, and the thicker the transmission line, the worse the bending performance. The application of the transmission line in the dynamic bending situation is not considered. In some occasions where the transmission line is dynamically used, such as a laptop computer, it is very necessary Some transmission lines meet the performance requirements of being able to dynamically bend many times, but the above-mentioned transmission lines are prone to breakage during multiple bending due to their poor dynamic bending performance, and their service life is short

Images