RADIO FREQUENCY BAND VARIABLE FILTER INCLUDING TUNING RODS AND TUNING SUPPORT

摘要

PURPOSE: A radio frequency band variable filter is provided to reduce manufacturing costs by constituting the filter by tuning rods and a tuning support and permitting one filter to be used in a wide variety of frequency bands. CONSTITUTION: A radio frequency band variable filter(1) comprises a housing(2) having a plurality of accommodating spaces; a plurality of resonance rods(3) extended upward from bottom surfaces of the accommodating spaces of the housing; a plurality of tuning rods(4) arranged at upper surfaces or side surfaces of the resonance rods; and a tuning support(5) penetrating through both sides of the housing. The tuning support is coupled to each of the tuning rods, and moves by the force applied from an external source so as to vary the position of the tuning rods.