Waveguide substrate having two slit-like couplings and high-frequency circuit module
US7439822B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2005 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Jan 16, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/73204
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A waveguide substrate has improved signal conversion characteristic to a cavity waveguide at a post wall waveguide less suffering a manufacturing error occurring at a portion leading the signal to the cavity waveguide. The waveguide substrate has a converting part provided at a position shutting off an end of the waveguide, waveguide shutting-off conducting posts penetrating a dielectric plate to electrically conduct between conductor layers on the both surfaces of the dielectric plate, and two slit-like regions, in which no conductor layer is formed, arranged in parallel in the upper stream and the lower stream with respect to a direction of propagation of a high-frequency signal from the waveguide toward the waveguide shutting-off conducting posts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.