研究目的
Discussing 5G device test draft test methods and testability challenges for meeting FCC compliance and new radiated immunity requirements
研究成果
The compliance requirements for 5G devices operating in milli-meter wave frequency range is complex. The sum of the EIRP and total radiated power (TRP) are new requirements and evaluation techniques are different from those used on low frequency devices. These requirements must be met through OTA testing. Significant computing and test effort is required for compliance testing.
研究不足
The document highlights the complexity of compliance requirements for 5G devices operating in milli-meter wave frequency ranges, including the challenges of making accurate measurements in the near-field and the need for significant computing and test effort for compliance testing.
1：Experimental Design and Method Selection:
The document discusses the methodology for evaluating 5G millimeter wave devices for FCC compliance, focusing on sum of equivalent isotropic power (EIRP) and total radiated power (TRP) measurements. It also covers radiated immunity testing at millimeter wave frequencies.
2：Sample Selection and Data Sources:
The evaluation is based on 5G massive MIMO transmitters operating in millimeter wave frequency ranges.
3：List of Experimental Equipment and Materials:
The document mentions the use of signal generators, spectrum analyzers, harmonic down converters (HDC), and flexible low loss cables for measurements above 40GHz.
4：Experimental Procedures and Operational Workflow:
Detailed procedures for measuring EIRP and TRP are provided, including the need for far-field measurements and the challenges of near-field measurements.
5：Data Analysis Methods:
The document explains the calculation of EIRP and TRP from measured data, including the use of Friis free-space propagation loss equations.
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