Integrated as a wizard within the AWR Design Environment™ (AWRDE), iFilter keeps your filter designs and their evolution a part of the entire, managed circuit design project. AWR's integrated filter synthesis module, iFilter, seamlessly runs within Microwave Office®. AWR Design Environment platform addresses all stages and types of filter development, e.g., lumped-element/distributed, multiplexed, high-Q cavity filters. Manually built model of cavity filter (half of the model) So, the work flow in the AD approach could consist of: Using a mechanical AD tool to model the filter structure The example of five resonator cavity filter with one cascaded triplet T section is shown in Fig.