Microstrip to dielectric waveguide transition
US4745377A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1987 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Jun 8, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/087
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A microstrip to dielectric waveguide transition is provided comprising a gth of rectangular dielectric waveguide which has one end tapered in such a manner that the height of the waveguide top surface above the waveguide bottom surface decreases linearly from full height to zero height at the tapered end of the length of waveguide. The bottom surface of the waveguide length is mounted on the top surface of a planar microstrip dielectric substrate having an electrically conductive metallic ground plane on the bottom substrate surface and a length of microstrip conductor on the top substrate surface aligned with the waveguide length and abutting the tapered end of the waveguide length. A second length of microstrip conductor is mounted on the tapered portion and part of the untapered portion of the top surface of the waveguide length and is electrically connected to the first microstrip conductor at the tapered end of the waveguide length. The dielectric constant of the microstrip substrate should be no greater than the dielectric constant of the dielectric waveguide length and preferably should be much less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.