Filter banks composed of five or more bandpass filters fabricated on a single die have been demonstrated and are under continuing development. Such filters will find applications in multi-channel radios, spectrum analyzers, and in other frequency control applications. Fabrication of ladder bandpass filters requires that resonators be built at two or more frequencies for each filter. In the simplest form of the ladder filter, at least one frequency is needed for the series resonator and a lower frequency for the shunt resonator. This paper reports on a technique to fabricate multiple frequency resonators and experimental results for a simple five channel filter bank. Modern communications systems are becoming increasingly complex in frequency control requirements. The software radio is emerging as a concept to deal with a wide spread of spectrum allocations and modulation techniques. Filters are used in various locations in a wireless system architecture but most importantly at the front end locations nearest the antenna. This is for both the transmit and receive channels. Increased spectrum utilization and band crowding has brought out the need for high performance filtering to reduce the transmission of interference as well as protection from receiving undesired signals.