High sensitivity tunable radio frequency sensors
US9464994B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2014 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Apr 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Highly sensitive and tunable RF sensors that provide detection and analysis of single cells and particles are provided. The tunable RF sensors are configured as tunable interferometers, wherein cells or particles to be analyzed are passed through a channel, such as a microfluidic channel, across waveguides corresponding to reference and test branches of the interferometers. A network analyzer coupled to the interferometers can be configured to measure a plurality of scattering parameters, such as transmission scattering coefficients (S21) of the reference and test branches, to evaluate characteristics of cells passing through the channel. A plurality of tunable interferometers may be employed, each interferometer operating in different frequency bands such that information obtain from the plurality of interferometers may be combined to provide further information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.