A compact, contiguous-channel multiplexer has been developed using a silicon multi-chip module (MCM) process 1 . The passive channelizing filter is based on the mammalian cochlear response, covers 2-7 GHz in 15 channels (16% bandwidth) and occupies an area of 48 mm 2 . Such a filter finds application in integrated wideband and ultra-wideband (UWB) systems as a receiver preselector filter and/or a spectrum activity monitor.
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