Coupling device between an electromagnetic surface wave line and an external microstrip line
US4733202A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1986 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Oct 22, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A device for coupling between an electromagnetic surface wave device (OSEL), operating in a symmetrical field distribution mode and an external microstrip line operating in a disymmetric mode. Coupling between the access microstrip to the surface wave device and the external microstrip is provided by means of three line elements made from dielectric materials, held in position by three non magnetic metal parts, forming a transition between symmetric and disymmetric modes in steps: PA1 electromagnetic surface wave mode, a symmetric mode of the surface wave device, PA1 three plate mode, PA1 microstrip mode with reactance matching, PA1 disymmetric microstrip mode of the external microstrip line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.