Patent · US Active

Determining the phase center of an antenna

US11002778B2 · kind B2 · utility

0Cited by

4References

15Claims

0Family size

Assignee

Rohde & Schwarz GmbH & Co. KG · DE

Inventors

Gerhard Hamberger · Munich, DE
Hendrik Bartko · Unterhaching, DE
Mert Celik · Munich, DE

Key dates

Filing date	Sep 20, 2019
Grant date	May 11, 2021
Priority date	—
Expiry date	Sep 20, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01R29/10
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A computer-implemented method for determining the phase center of an antenna under test comprises the following steps: acquiring a transmitted near-field or far-field signal of the antenna under test, by rotational movement of a measuring antenna relative to the antenna under test, the rotation covering at least the angle between the z axis and the x axis of the antenna, the rotational movement covering a spherical measurement region, the acquisition being performed at different angles phi to the z axis and while rotating, relative to the measuring antenna, the antenna under test around its z axis, obtaining far-field phase data by applying a field transformation on the near-filed or far-filed signal obtained, determining the main beam peak location within the measurement region, and transforming the coordinate center of the far-field data based on the main beam peak location in order to determine the phase center.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.