Multi-layer radial power divider/combiner
US8319583B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 24, 2009 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Mar 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/16
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An N-way multi-layer radial power combiner/divider comprises an RF layer including N planar RF transmission lines radiating from a common port to N ports. An isolation layer substantially parallel to the RF layer comprises a star resistor having N resistive arms radiating from a common junction and N planar isolation transmission lines coupled in series to respective resistive arms. Each series pair of a resistive arm and an isolation transmission line is ideally a half-wavelength in electrical length. N vertical interconnects between the RF layer and the isolation layer connect the ends of the N isolation transmission lines to the ends of the N RF transmission lines at the N individual ports, respectively. Any path from one individual port through the common junction of the star resistor to another individual port is approximately a full wavelength λc or multiple thereof so that the phase angle through the isolation network is approximately zero degrees. This approach can achieve better isolation and power handling than the Wilkinson design while employing the benefits of planar metallization technology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.