Compact, high-power microwave phase shifter
US6313793A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2000 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Jan 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/32
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phased array antenna including at least one configurable phase shifter. The configurable phase shifter includes a U-shaped primary waveguide section and multiple switchable waveguide U-shaped sections disposed within the primary section. The switchable waveguide sections include a plunger in the U-shaped waveguide section and one or more solenoids attached to the plunger, driving the plunger in and out such that the switches can be actuated in less than 100 milliseconds. The plunger and the switchable waveguide section are shaped such that the waveguide height is constant in the U-shaped waveguide section when the switch is closed and constant in the primary waveguide section when the switch is open, thereby minimizing return loss. The U-shaped primary waveguide section includes an input port and an output port at opposite sides. A radiating slot is located at the bottom face of the U-shaped primary waveguide section. The radiating slot may be formed in a detachable plate attached to the bottom the U-shaped primary waveguide section. Further, multiple one configurable phase shifters may be cascaded to form a traveling wave phased array antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.