An ultra compact ion mobility based analyzer in a multilayered chip assembly employing various features such as a ion flow generator to propel ions through an ion mobility based filter and, thereby, reduce analyzer size, cost, and power requirements. A cooling medium from a sub-slot which is arranged at the bottom of the winding slot is fed along the axis in periodic intervals to the conductor elements. The flap is configured to prevent errant filaments from spooling tightly about the core to aid subsequent removal of the filaments. The phase shift computed for each carrier signal is combined with the phase characteristic of that carrier signal so as to substantially scramble the phase characteristic of the carrier signals. The cap is formed of sheet material which is both plastically and elastically deformable.