Continuously variable filter

Abstract

A continuously variable filter (110) that includes at least one filter element (146). The filter also includes a fluidic dielectric (108) having a permittivity and a permeability, a composition processor (101) adapted for dynamically changing a composition of the fluidic dielectric (108), and a controller (136) for controlling the composition processor (101) to selectively vary the permittivity and/or the permeability in response to a filter control signal (137). The filter element (146) is at least partially coupled to the fluidic dielectric (108). A second fluidic dielectric having a different composition than the first fluidic dielectric can be provided and a second filter element (148) can be partially coupled to the second fluidic dielectric. The controller (136) and composition processor (101) also can be adapted for varying the permittivity and/or permeabiliity of the fluidic dielectric (108).

Dependencies are inferred from the claim text.