| 摘要 |
A rolled-up transformer structure comprises a multilayer sheet having a rolled configuration comprising multiple turns about a longitudinal axis. The multilayer sheet comprises more than one conductive pattern layer on a strain-relieved layer, including a first conductive film and a second conductive film separated from the first conductive film in a thickness direction. The first conductive film comprises an even number of primary conductive strips, where each primary conductive strip has a length extending in the rolling direction, and the second conductive film comprises an even number of secondary conductive strips, where each secondary conductive strip has a length extending in the rolling direction. In the rolled configuration, turns of the primary conductive strips and turns of the secondary conductive strips wrap around the longitudinal axis. The primary conductive strips serve as a primary winding and the secondary conductive strips serve as a secondary winding of the rolled-up transformer structure. |
| 主权项 |
1. A rolled-up transformer structure for a radiofrequency integrated circuit (RFIC), the rolled-up transformer 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 first conductive film comprises an even number of primary conductive strips, each of the primary conductive strips having a length extending in the rolling direction, wherein the second conductive film comprises an even number of secondary conductive strips, each of the secondary conductive strips having a length extending in the rolling direction, wherein, in the rolled configuration, the primary conductive strips wrap around the longitudinal axis and the secondary conductive strips wrap around the primary conductive strips, the primary conductive strips being a primary winding and the secondary conductive strips being a secondary winding of the rolled-up transformer structure. |
