System and method using multitone signal in reverberation chamber

The system uses a multitone signal in a reverberation chamber to efficiently measure RF system metrics by mimicking thermal noise, addressing impracticality and cost issues in existing methods, and achieving accurate, simultaneous measurement across multiple frequencies and power levels.

WO2026142421A1PCT designated stage Publication Date: 2026-07-02ANTENNEX HOLDING BV
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
ANTENNEX HOLDING BV
Filing Date
2025-12-18
Publication Date
2026-07-02

AI Technical Summary

Technical Problem

Existing methods for measuring RF system metrics like gain, noise figure, and noise power ratio are impractical and costly, especially for systems with integrated antennas, due to the need for specialized hardware and complex setups.

Method used

A system using a multitone signal in a reverberation chamber mimics a stochastic process to mimic thermal noise, allowing simultaneous measurement of RF system metrics by varying tones' reflections and phases, enabling efficient and cost-effective characterization.

Benefits of technology

The system provides accurate and time-efficient measurement of RF system metrics by mimicking a pseudo-random signal without specialized hardware, facilitating frequency averaging and simultaneous measurement across multiple frequencies and power levels.

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Abstract

The present disclosure generally relates to a system and method for testing a device-under-test. The system comprises: a transmitter antenna and a receiver antenna, wherein the DUT is configured to be coupled to or is at least partially formed by the receiver antenna; a reverberation chamber including configuration means for changing an electromagnetic, 'EM', reflection behavior inside the reverberation chamber between a plurality of states; and a measurement unit. The system is configured to perform a plurality of measurements, wherein, for each measurement: the reverberation chamber is configured in a respective state among the plurality of states; the transmitter antenna is configured to emit EM waves inside the reverberation chamber based on a multitone signal; and the receiver antenna is configured to receive said EM waves and provide a receiver signal based on the received EM waves. The measurement unit is configured to determine a test result associated with the DUT based on the receiver signal associated with each of the plurality of measurements.
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