High-frequency waveguide and phase shifter using same, radiator, electronic device which uses this phase shifter and radiator, antenna device, and electronic device equipped with same
US8779995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2009 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | May 15, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93271
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This high-frequency waveguide is formed by first and second conductors disposed opposite each other at a spacing of λ0/2, where λ0 is the free space wavelength of the operating frequency of a high-frequency signal. A ridge is provided at the waveguide formation portion between these first and second conductors, which protrudes from one of the first and second conductors toward the other and is formed extending along the waveguide formation portion. A plurality of columnar protrusions with a height of λ0/4 are disposed at a spacing of less than λ0/2 to at least one of the first and second conductors on the outside of the waveguide formation portion and to the outside of the ridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.