Insular waveguide directional coupler
US4091343A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1976 |
| Grant date | May 23, 1978 |
| Priority date | — |
| Expiry date | Nov 8, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2009/126
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An insular waveguide directional coupler for use in the frequency range from about 1 GHz to about 1,000 GHz including a conductive image plane, a first length of elongated high permittivity dielectric waveguide of finite cross section adjacent to the conductive image plane, a second length of elongated high permittivity dielectric waveguide of finite cross section adjacent to the conductive image plane and spaced from the first length of waveguide to provide a coupling region therebetween, and a thin film of synthetic organic resin disposed between and secured to the conductive image plane and the lengths of waveguide, the thin film being low loss in character and having a low permittivity compared with that of the lengths of waveguide, the first length of waveguide having an inlet port at one end of the coupling region and spaced away from the second length of waveguide a distance substantially greater than the distance between the lengths of waveguide in the coupling region, the first and second lengths of waveguide having respectively first and second outlet ports at the other end of the coupling region and spaced from the other length of waveguide a distance substantially great…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.