Phase shifter of the cavity type including a feeding network, a slideable dielectric element and a transformation device, which are mounted within the cavity of the phase shifter
US10062939B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 27, 2015 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Jan 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/32
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phase shifter of cavity type includes an integrally formed cavity, a feeding network disposed inside the cavity, a dielectric element disposed between the feeding network and the cavity, and at least one transmission-line transformation device. The at least one transmission-line transformation device is connected with the cavity by welding for connecting an outer conductor of a transmission cable, and for passing an inner conductor of the transmission cable into the cavity and being connected with the feeding network. Phase shifting is achieved by straight movement of the dielectric element along the longitudinal direction of the cavity. For the phase shifter of cavity type, the cavity and transmission-line transformation device are individually designed, and as a result, difficulty in design and manufacture is decreased. In addition, fasteners such as screws are not used for securing the phase shifter, thus avoiding reliability and inter-modulation problems resulted from failure of screws.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.