Many critical military operations around the world are increasingly relying on a variety of electronic warfare devices for a range of threat suppression, detection, and neutralization activities. This means that numerous devices operating across the RF spectrum including low-frequency devices in the VHF band and mmWave devices in the Ka band are necessary. As shown in Figure 1, when many electronic warfare devices are in use, a large number of signals are being sent and received and crossing paths. Therefore, it’s easy for any one of these devices to experience issues with interference if proper filtering techniques are not in place.

To ensure Knowles Precision Devices (KPD) customers achieve optimal performance and are successful with our products, we have compiled a number of techniques to mitigate PCB variation and reduce the unwanted effects of microstrip technology (e.g. cross talk and radiation).