Microstrip dot termination usable with optical modulators
US6593829B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2001 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Sep 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/268
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A dot termination comprising a disk of thin film resistive material connects a transmission line on a substrate to a DC ground plane in a manner to provide broadband high frequency performance. The dot termination connects to DC ground connections spaced about the perimeter of the disk. Each DC connector includes a ground via passing through the substrate to the ground plane. A metal trace is used for each DC connection, the trace connecting a respective via with the perimeter of the disk. Each metal trace can include a resistive portion connected to the dot region and a metal trace portion connecting the trace to the via. A resistive extension tongue of the disk connects the disk to a transmission line trace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.