Electronic devices with passive radio-frequency power distribution circuitry
US11581633B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2020 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Apr 27, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electronic device may include a transceiver, first and second antennas, and a passive radio-frequency power distribution circuit. The distribution circuit may have a first port coupled to the transceiver, a second port coupled to the first antenna, and a third port coupled to the third antenna. The distribution circuit may include a transformer coupled between the ports. The transformer may have at least two intertwined inductors formed from conductive traces on a dielectric substrate. The intertwined inductors may be concentric about a common point. The intertwined inductors may extend from the common point to the second and third ports. The intertwined inductors may have a coil or spiral shape and may wind around the common point at least once. Intertwining the inductors may serve to minimize the lateral footprint of the distribution circuit in the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.