Rolled-up transmission line structure for a radiofrequency integrated circuit (RFIC)

摘要

A rolled-up transmission line structure for a radiofrequency integrated circuit (RFIC) comprises a multilayer sheet in a rolled configuration comprising multiple turns about a longitudinal axis, where the multilayer sheet comprises a conductive pattern layer on a strain-relieved layer. The conductive pattern layer comprises a first conductive film and a second conductive film separated from the first conductive film in a rolling direction. In the rolled configuration, the first conductive film surrounds the longitudinal axis, and the second conductive film surrounds the first conductive film. The first conductive film serves as a signal line and the second conductive film serves as a conductive shield for the rolled-up transmission line structure.

主权项

1. A rolled-up transmission line structure for a radiofrequency integrated circuit (RFIC), the rolled-up transmission line structure comprising:
a multilayer sheet in a rolled configuration comprising multiple turns about a longitudinal axis, the multilayer sheet comprising a conductive pattern layer on a strain-relieved layer, the conductive pattern layer comprising a first conductive film separated from a second conductive film in a rolling direction, wherein the strain-relieved layer comprises two layers, and wherein, in an unrolled configuration of the multilayer sheet, a top layer of the two layers is in tension and a bottom layer of the two layers is in compression, and wherein, in the rolled configuration, the first conductive film surrounds the longitudinal axis and forms a center core of the rolled-up transmission line structure, the first conductive film being a signal line, and the second conductive film surrounds the first conductive film, the second conductive film being a conductive shield.