Inverted coplanar waveguide coupler with integral microstrip connection ports
US6549090B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2001 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Jul 19, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/0237
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A coplanar coupler for use with microstrip input and output ports includes a printed circuit substrate in which first and second metal input ports are formed on a top surface and cooperate with a metal layer on the bottom surface as microstrip lines, and first and second metal output ports formed on the top surface which cooperate with the metal layer on the bottom surface as microstrip lines. The metal layer on the bottom surface functions as a ground plane for the input ports and the output ports, the metal layer being removed in a coupler region underlying at least portions of the metal input and output ports and extending therebetween. First and second metal lines are formed on the bottom surface in the coupler region and function as a coplanar coupler for the input and output ports. Electrical vias in the substrate interconnect the ports and the coplanar coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.