An EMI shielding FSS for Ku-band applications

A FSS consisting of cross-slot elements coated on a flat glass was used to study its impact on transmission and reflection at Ku-band frequencies of 12.2~12.7 GHz. Based on the simulation experience of the first partial study, the FSS element with geometrical parameters W=1.0 mm, L=7.2 mm, P=9 mm, and T=5 mm was proposed for signals to transmit the flat glass coated with the FSS at Ku-band frequencies of 12.2~12.7 GHz and to be blocked by the flat glass coated with the FSS outside the Ku-band frequencies. From simulation results and measurement data, it is shown that the resonant frequency of the flat glass coated with the proposed FSS is found to be around 12.5 GHz which is in the Ku-band (12.2~12.7 GHz) for the reflection with better than -10 dB. It is also shown that high transmission in the useful frequency band (12.2~12.7 GHz) can be achieved by using the proposed FSS coated on the flat glass.