Can diplexers/duplexers be made with ceramic filters?
Ceramic filters lend themselves very well to diplexing. The high impedance inputs can be prototyped to provide both contiguous and non-contiguous crossovers with a full match on the opposite, or output, end of the filters. Band pass / band pass diplexers are most common, but band pass/notch diplexers also work well. Notch/notch diplexers, classically called duplexers, are a little more difficult and in some frequency ranges are not practical.
