Design of contiguous RF filterbanks with application in channelised receivers

Modern Radar Warning Receivers discriminate between incoming pulses in the 2-18 GHz band. The pulse density is sufficient for a likelihood of time coincident pulses. A wide open receiver, such as an IFM, could then have degraded performance. It is unlikely that coincident pulses would have the same radio frequency, so frequency sorting, or channelisation, is used. A receiver of this type is called a channelised receiver. A typical receiver mixes segments of the 2-18 GHz band down to a suitable intermediate frequency prior to channelisation in a filter bank. The outputs from each channel are then detected and the resultant video signals processed