Method for isolating transmission lines of radio frequency power amplifier and transmission structure for radio frequency power amplifier
US11855593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2023 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Apr 10, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for isolating transmission lines of a radio frequency power amplifier and a transmission structure of the radio frequency power amplifier are provided. The method includes steps of setting a distance between adjacent two of transmission lines on a chip substrate to be greater than 2.5 times a width of each of the transmission lines, and disposing shielding lines at an inner side of each of the transmission lines and an outer side of each of the transmission lines opposite to the inner side; wrapping a permalloy layer on an outer wall of each of the transmission lines; and wrapping an aluminum layer on an outer wall of the permalloy layer, defining a plurality of grooves on an outer wall of the aluminum layer at intervals, where the plurality of the grooves are recessed inward and in an inverted triangular structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.