novel assemblies for use in conjunction with rf shielded enclosures and the like include one or more rf power and signal filters connectibly inserted , attached to , or otherwise made a part of optimized cavities or receptacles formed within an optimized frame of the assembly . the use of optimized cavities or receptacles greatly reduces the number of exterior fasteners needed to connect filters to the assembly or the assembly to an enclosure which , in turn , reduces leakage . the optimized cavities or receptacles may be arranged in a compact manner in order to make optimum use of the available space on an optimized frame of the assembly .