Fig. 1. Periodic pulse signal

Fig. 2. Fourier series of pulse signal

Fig. 3. Fields surrounding current-carrying conductor

Fig. 4. Fields around shielded conductor（shield grounded at one point）

Fig. 5. Fields around shielded conductor（shield grounded and carrying acurrent equal to conductor current but in opposite direction）

Fig. 6. Division of current between shield and ground plane

Fig. 7. Shield gap

Fig. 8. Shielding at component joints

Fig. 9. Comparison of RE102 test before and after double-layer filling shield

Fig. 10. Electromagnetic wave attenuates exponentially after passing through shield

Fig. 11. Incident field and reverse field generated by induced current

Fig. 12. Common-mode noise of shielded cable

Fig. 13. Common-mode noise of double-layer shielded coaxial cable

Fig. 14. Comparison of RE102 test before and after double-layer shielding

Fig. 15. Circuit board shield treatment

Fig. 16. Crevice with double-layer filling shield treatment

Fig. 17. PT02 cable shield treatment

Fig. 18. Test antenna position

Fig. 19. Integrated power in band of BDB1 and BDB3 before photoelectric equipment power on

Fig. 20. Integrated power in band of BDB1 and BDB3 after photoelectric equipment power on

Fig. 21. Comparison of RE102 test results（1-3 GHz）