Planar transmission line to waveguide transition for a microwave signal
US6396363B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/107
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transition from a planar transmission line to a waveguide has a planar transmission line patterned onto a glass substrate. A mode transformer 1 on the substrate 3 is electrically connected to a transmission line 2 and converts a transverse electric or quasi-transverse electric mode signal carried by the transmission line to a waveguide mode signal. A combination of a first extension of the substrate 3 and a dielectric portion having some depth makes up a first impedance matching element 13. A second impedance matching element 14 is a combination of a second extension of the substrate 3 and a dielectric portion having another depth greater than the first depth. The aperture created by the second impedance matching element launches an RF signal into the air for use as a wireless communication signal. Also disclosed is a method for optimizing a transition according to the teachings of the present invention for alternative dimensions and dielectrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.