 Hello and welcome to this animation on Antenna Desense Medication. Here we have a PC connected to the internet gateway in Wi-Fi mode. The reception level is measured and represented by the yellow line on the PC screen. An external device is connected to the PC through its USB 3.0 connector. As soon as the connection becomes active, radiated noise is generated along the cables and wires between the transceiver and the receiver. The noise and its harmonics are in the same range as the Wi-Fi which induces antenna descents and results in the loss of the Wi-Fi connection. The disappearance of the yellow curve shows this. When the USB 3.0 link becomes inactive, the Wi-Fi connection is re-established, showing that antenna descents is caused by the noise. To prevent this phenomenon from occurring, the solution is to filter out the disturbance. The best way to do this is to insert ST common mode filters in the link between the transmitter and the receiver. Selecting a deep attenuation profile in the correct frequency range drastically cuts unwanted noise and prevents RF communications from being dropped due to poor signal quality. The Wi-Fi interface remains connected during data transmissions. ST's ECMF suppresses radiated noise over a large frequency range between 600 MHz and 5 GHz. Coming with robust ESD protection, the ECMF guarantees minus 20 dB attenuation at multiple antenna frequencies for better and unique antenna sensitivity. Limited rejection at single frequency, 900 MHz. V-shape, high rejection at minus 50 dB at selected frequency, GSM, Wi-Fi and LTE. W-shape, double rejection at minus 30 dB to immunize multiple antennas. And U-shape, ultra-large rejection to immunize all antennas. ST's ECMF series offers robust ESD protection at system level, integrated common mode filter, signal integrity compliance with USB 2.0 3.0, DisplayPort, HDMI, MIPI, SATA, etc. a broad range of common mode filtering shapes and various package options, single or multi-line products, chip scale or micro QFN packages. Thank you for watching. Please visit www.st.com.ecmf.