Measuring system for over-the-air power measurements

Patent metadata

Field	Value
Publication number	US-10135553-B2
Application number	US-201615214114-A
Country	US
Kind code	B2
Filing date	Jul 19, 2016
Priority date	Feb 19, 2016
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

A measuring system for measuring a high frequency signal is provided. The measuring system comprises an antenna module, adapted for receiving the high frequency signal. Moreover, the system comprises a detector module adapted for deriving a measuring signal from the high frequency signal. Finally, the system comprises a sensor module adapted for measuring the measuring signal. The sensor module is arranged in a housing, while the detector module is not arranged in the housing. The detector module is connected to the sensor module by a first cable, which is adapted to transmit the measuring signal from the detector module to the sensor module.

First claim

What claimed is:

1. A measuring system for measuring a high frequency signal, comprising: an antenna module, adapted for receiving the high frequency signal, a detector module, adapted for deriving a measuring signal from the high frequency signal, and a sensor module, adapted for measuring the measuring signal, wherein the sensor module is arranged in a housing, wherein the detector module is not arranged in the housing, wherein the detector module is connected to the sensor module by a first cable, adapted to transmit the measuring signal from the detector module to the sensor module, wherein the antenna module or the detector module comprises a storage unit, adapted to store parameters of the antenna module or the detector module, wherein the parameters of the antenna module or the detector module are calibration parameters, wherein the storage unit is a flash memory or a magnetic memory;
and wherein the antenna module or the detector module comprise a communication unit, adapted to transmit the respective parameters of the antenna module or the detector module stored in the respective storage unit to the sensor module.

2. The measuring system of claim 1 , wherein the antenna module and the detector module are integrated into a combined module.

3. The measuring system of claim 1 , wherein the antenna module is connected to the detector module by a second cable.

4. The measuring system of claim 1 , wherein the detector module comprises a chopper, adapted to modulate a signal derived from the high frequency signal, resulting in a signal the measuring signal is derived from.

5. The measuring system of claim 1 ,
wherein the detector module comprises a detector, adapted to perform a detection of a signal derived from the high frequency signal, or
wherein the detector is a diode sensor, adapted to perform a rectification of the signal derived from the high frequency signal.

6. The measuring system of claim 5 ,
wherein the antenna module comprises a slotline antenna,
wherein the antenna module comprises a transformer adapted to transform a slotline antenna signal provided by the slotline antenna into a coplanar antenna signal, and
wherein the detector is adapted to receive the coplanar antenna signal.

7. The measuring system of claim 1 , wherein the detector module comprises a first amplifier, adapted to amplify a signal derived from the high frequency signal resulting in the measuring signal.

8. The measuring system of claim 1 ,
wherein the antenna module or the detector module comprises a temperature sensor adapted to determine a present temperature, and
wherein the antenna module or the detector module comprises a communication unit adapted to transmit the present temperature determined by the temperature sensor to the sensor module.

9. The measuring system of claim 1 , wherein the storage unit is an RFID chip, or a barcode, and wherein the sensor module is adapted to read the parameters of the antenna module or the detector module stored in the storage unit.

10. The measuring system of claim 1 , wherein the sensor module comprises a second amplifier adapted to amplify the measuring signal received from the detector module.

11. The measuring system of claim 1 , wherein the sensor module comprises an analog-digital-converter, adapted to digitize a signal derived from the measuring signal received from the detector module.

12. The measuring system of claim 1 , wherein the sensor module comprises a digital signal processor adapted to perform post processing on a signal derived from the measuring signal received from the detector module.

13. The measuring system of claim 12 ,
wherein the sensor module comprises a first communication unit, adapted to:
receive from the detector module or the antenna module a present temperature of the detector module or the antenna module, or
receive from the detector module or the antenna module parameters of the detector module or the antenna module, and

wherein the digital signal processor is adapted to perform the post processing of the signal derived from the measuring signal, received from the detector module, compensating for:
the present temperature of the detector module or the antenna module, or
the parameters of the detector module or the antenna module.

Assignees

• Rohde & Schwarz

Inventors

• Perndl Werner
• Gallhauser Markus
• Hechtfischer Gerd
• Voss Nino
• Tankielun Adam

Classifications

• H04B17/191 Primary

  Over-the-air testing · CPC title

• G01R29/0878

  Sensors; antennas; probes; detectors (wave guide measuring sections G01R1/24) · CPC title

• H04B17/318 Primary

  Received signal strength · CPC title

• G01R23/00

  Arrangements for measuring frequencies; Arrangements for analysing frequency spectra · CPC title

• G01R21/14

  Compensating for temperature change · CPC title