Miniature active conversion between slotline and coplanar waveguide
US5821815A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Sep 25, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/1015
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An active device, such as a field effect transistor ("FET"), converts microwave signals between a slot transmission line ("slotline") and a coplanar waveguide ("CPW") In slotline-to-CPW conversion using one or more FETs, a gate connection is made to one or both of the slotline conductors. A drain connection is made to the center conductor on the CPW. Two FET source terminals are connected respectively to each CPW ground strip and may be coupled to a slotline conductor. The active device can be reconnected so as to reverse the input and output, providing for conversion of signals from CPW to slotline. Conversion between balanced-signal slotline and CPW further includes passive or active phase shift of one signal path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.