an embodiment of the present invention provides an apparatus , comprising a multi - tiered cascaded tunable dielectric phase shifter capable of operating in digital - analog regime by at least one cascade operable in an analog regime and at least one cascade operable in a digital regime . the multi - tiered cascaded tunable dielectric phase shifter may be a three tiered cascaded digital - analog phase shifter using broadside coupled lines with resonance terminations containing tunable dielectric film capacitors . the first two cascades of the three tiered cascades may be operable in a digital regime , and the third cascade may be operable in an analog regime and further the digital regime may operate at and the analog regime may operate between , wherein the analog cascade may provide phase states from 0 ° up to φn − 1 and may add the continuous phase shift functionality to the digital cascades of the phase shifter . also , the tunable dielectric phase shifter may be capable of providing a continuous 360 ° phase shift with 5 % bandwidth and insertion loss of approximately 3 db without modulation . an embodiment of the present invention provides that a phase shift by the tunable dielectric phase shifter may be enabled by one or more voltage tunable dielectric capacitors which comprises a low loss tunable dielectric material and metallic electrodes with predetermined shape , size , and distance .