Fig. 1. Diagram of the ideal chassis model

Fig. 2. Model simulation settings for the simplified chassis

Fig. 3. Coupling field distribution in chassis cavity

Fig. 4. Frequency domain simulation diagram of chassis echo signal

Fig. 5. Frequency domain simulation diagram of chassis echo signal and coupling field strength

Fig. 6. Enlarged chassis model

Fig. 7. Frequency domain simulat results amplified chassis echo signal and coupled field strength

Fig. 8. Square chassis model

Fig. 9. Frequency domain simulation results of the square chassis signal and coupled field strength

Fig. 10. Time domain strong coupling waveform at 9 GHz

Fig. 11. Excitation and chassis coupling field time domain waveform (weak coupling)

Fig. 12. 8 GHz vs. 8.5 GHz chassis echo time domain waveform (weak coupling)

Fig. 13. Time domain strong coupling waveform of enlarged chassis at 9 GHz

Fig. 14. Time domain weak coupling waveform of enlarged chassis at 1.8 GHz

Fig. 15. Time domain strong coupling waveform of square chassis at 5.5 GHz

Fig. 16. Time domain weak coupling waveform of square chassis at 5.1 GHz