Configurable bias tee
US9553559B2 · kind B2 · utility
1Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2014 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Jul 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/0123
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Bias tees, according to certain embodiments of the present invention, include switches in the AC signal path, the DC signal path, or both, to improve the capability of the bias tees to be used for high impedance AC measurement, low current DC measurement, or both. Optical control of the switches, as well as control of the switches using a DC bias present within the AC signal input to the bias tee, is described. Including a set of diodes into the DC signal path, rather than a switch, provides enhanced capability of the bias tee to be used for high impedance AC measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.