Method for calibration of a vectorial network analyzer
US7769555B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2007 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Jan 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for calibration of a vectorial network analyzer, having n measurement ports (n>1) and at least m measurement sites with n+1<m<2n. Calibration includes measurement of three different n-port reflection standards connected between the measurement ports in any sequence, and measurement of different transmission standards connected between two measurement ports, and mathematical determination of the error coefficients of the network analyzer and the error-corrected scattering matrices [Sx] of the n-port calibration standards. The reflection standards, similar to shorts and opens, are unknown and the reflection standard implemented by wave terminations is known, but can be different at each n-fold one-port. The measurement of the transmission standards occurs on a transmission standard known in length and attenuation, which is implemented on each possible two-port by different combination of measurement ports. The unknown reflection values of the n-fold one-ports are determined mathematically by the measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.