TIDUF43 August 2024
- 1
- Description
- Resources
- Features
- Applications
- 6
- 1System Description
- 2System Overview
- 3System Design Theory
- 4Hardware, Software, Testing Requirements, and Test Results
- 5Design and Documentation Support
- 6About the Author
4.4.8.2 Radiated Emissions Testing
Radiated emissions (RE) testing was achieved with 4 different antennas to capture the full frequency range of CISPR-25. A 12V car battery and LISNs are used for these tests. With the EUT tied to the LISNs, the 4Ω load is wired from the EUT back to the LISN to better replicate an actual application of the EUT. For the tests with monopole, biconical, and horn antenna, tests for low power mode and no load are not shown as these measurements are very similar to the ambient noise floor.
Figure 4-23 RE Setup With a Monopole Antenna: 0.15MHz to 30MHz
Figure 4-24 RE Ambient Noise Floor: 0.15MHz to 30MHz
Figure 4-25 RE 3A Load: 0.15MHz to 30MHz
Figure 4-26 RE Setup With a Biconical Antenna: 30MHz to 200MHz
Figure 4-27 RE Ambient Noise Floor Horizontal Antenna: 30MHz to 200MHz
Figure 4-28 RE Ambient Noise Floor Vertical Antenna: 30MHz to 200MHz
Figure 4-29 RE 3A Load Horizontal Antenna: 30MHz to 200MHz
Figure 4-30 RE 3A Load Vertical Antenna: 30MHz to 200MHz
Figure 4-31 RE Setup With a Logarithmic Antenna: 200MHz to 1GHz
Figure 4-32 RE Ambient Noise Floor Horizontal Antenna: 200MHz to 1GHz
Figure 4-33 RE Ambient Noise Floor Vertical Antenna: 200MHz to 1GHz
Figure 4-34 RE Low Power Mode Horizontal Antenna: 200MHz to 1GHz
Figure 4-35 RE Low Power Mode Vertical Antenna: 200MHz to 1GHz
Figure 4-36 RE No Load Horizontal Antenna: 200MHz to 1GHz
Figure 4-37 RE No Load Vertical Antenna: 200MHz to 1GHz
Figure 4-38 RE 3A Load Horizontal Antenna: 200MHz to 1GHz
Figure 4-39 RE 3A Load Vertical Antenna: 200MHz to 1GHz
Figure 4-40 RE Setup With a Horn Antenna: 1GHz to 5.925GHz
Figure 4-41 RE Ambient Noise Floor Horizontal Antenna: 1GHz to 5.925GHz
Figure 4-42 RE Ambient Noise Floor Vertical Antenna: 1GHz to 5.925GHz
Figure 4-43 RE 3A Load Horizontal Antenna: 1GHz to 5.925GHz
Figure 4-44 RE 3A Load Vertical Antenna: 1GHz to 5.925GHz