RF switched filter banks have several advantages over separate component designs. These switched filter banks are compact because of the integrated RF filter and switch technology. Another key advantage is improved electrical performance obtained by the combining of technologies. Most often the filter banks are controlled by TTL signals which is very common in the RF industry.
RF Filter banks can be designed in many configurations depending on the customers’ requirements. One common design is with a single input and output with up to 10 channels. Corry Micronics, Inc. (CMI) can design up to 16 filters into a single package. They design and build their own filters and have the advantage of using many different types of filter topologies. For example, CMI can design the RF filter bank with LC discrete components, crystal, microstrip, stripline, suspended stripline, slabline, combline, cavity, interdigital, tubular, waveguide, ceramic resonator or helical filter technology.