Measurement system and method for operating a measurement system

Patent metadata

Field	Value
Publication number	US-10720965-B2
Application number	US-201815921132-A
Country	US
Kind code	B2
Filing date	Mar 14, 2018
Priority date	Mar 14, 2018
Publication date	Jul 21, 2020
Grant date	Jul 21, 2020

Abstract

A measurement system comprising a device under test, at least a first antenna and a second antenna, a reflector device, a shielded space and a signal analysis module is disclosed. The first antenna is configured to at least one of generate electromagnetic waves directed to the reflector device and receive electromagnetic waves reflected by the reflector device. The reflector device is configured to reflect electromagnetic waves between the first antenna and the device under test. The second antenna is positioned in a near-field area of the device under test. At least the second antenna is connected to the signal analysis module, and the device under test, the first antenna, the second antenna and the reflector device are assigned to the shielded space. Moreover, a method for operating a measurement system is disclosed.

First claim

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A measurement system comprising:
a device under test, at least a first antenna and a second antenna, a reflector device, a shielded space and a signal analysis module;
the first antenna being configured to at least one of generate electromagnetic waves directed to the reflector device or receive electromagnetic waves reflected by the reflector device;
the reflector device being configured to reflect electromagnetic waves between the first antenna and the device under test;
the second antenna being positioned in a near-field area of the device under test;
at least the second antenna being connected to the signal analysis module;
the device under test, the first antenna, the second antenna and the reflector device being assigned to the shielded space,
wherein a shielding member is provided, the shielding member being assigned to the shielded space, and the shielding member being positioned between the first antenna and the second antenna, and wherein the shielding member separates a far-field area of the device under test from a near-field area of the device under test.

2. The measurement system according to claim 1 , wherein at least one of the first antenna or the device under test is configured to generate electromagnetic waves within a predetermined frequency band.

3. The measurement system according to claim 2 , comprising at least one signal generation module being connected to at least one of the first antenna or the device under test.

4. The measurement system according to claim 1 , wherein the second antenna is configured to receive an electromagnetic signal provided by the device under test.

5. The measurement system according to claim 1 , wherein at least one of the first antenna or the second antenna is configured as a link antenna.

6. The measurement system according to claim 1 , wherein at least one of the first antenna or the second antenna is stationary relative to the shielded space.

7. The measurement system according to claim 1 , wherein a positioning unit is provided that is configured to adjustably hold the device under test in a position.

8. The measurement system according to claim 7 , wherein the positioning unit is configured to adjust a position of the device under test in two dimensions or in three dimensions.

9. The measurement system according to claim 1 , comprising a third antenna being mounted stationary relative to the device under test.

10. A measurement system comprising:
a device under test, at least a first antenna and a second antenna, a reflector device, a shielded space and a signal analysis module;
the first antenna being configured to at least one of generate electromagnetic waves directed to the reflector device or receive electromagnetic waves reflected by the reflector device;
the reflector device being configured to reflect electromagnetic waves between the first antenna and the device under test;
the second antenna being positioned in a near-field area of the device under test;
at least the second antenna being connected to the signal analysis module;
the device under test, the first antenna, the second antenna and the reflector device being assigned concurrently to the shielded space,
wherein the first antenna is configured to measure far field properties of the device under test, and wherein the second antenna is configured to near field properties of the device under test.

11. The measurement system according to claim 10 , comprising a third antenna being mounted stationary relative to the device under test.

Assignees

• Rohde & Schwarz

Inventors

• Rowell Corbett
• Abadie Vincent

Classifications

• H04B17/103

  Reflected power, e.g. return loss · CPC title

• H01Q1/526

  Electromagnetic shields · CPC title

• H04B17/102

  Power radiated at antenna · CPC title

• H04B17/12

  of transmit antennas, e.g. of the amplitude or phase · CPC title

• H04B17/14

  of the whole transmission and reception path, e.g. self-test loop-back · CPC title