LC filters have the most cost-effective designs. These are usually smaller in size, as filter elements are realized using air core inductors or ferrite inductors and mica or chip capacitors.
Comb line Filters
Comb line filters are realized using distributed inductors or lengths of transmission line and distributed capacitance or lumped capacitance. Comb line filters feature high Q, compact size and
bandwidths ranging from 2 to 25%.
Cavity Filters
High Q can be achieved by employing cavity resonators, resulting in low loss and narrow bandwidths. Cavity filters are relatively easy to manufacture. The bandwidth of a cavity filter is
determined by the aperture size between the cavities. Larger aperture leads to wider bandwidth of the filter.
Duplex Filters
SGR Duplexer series of filters allow simultaneous receiver / transmitter operation through a common antenna port. These filters cover frequency bands from 10 MHz to 3000 MHz. and also give good
isolation between transmitter and receiver. These filters operate the power up to 1W-100W.