HIGH FREQUENCY FILTER WITH CROSS-ARRANGED STEP IMPEDANCE RESONATOR

摘要

The present invention relates to a high-frequency filter in which step impedance resonators are alternately arranged and, more specifically, to a high-frequency filter including step impedance resonators arranged in a plurality of rows capable of significantly reducing the size, weight, and price while maintaining characteristics of high frequency by arranging step impedance resonators in different rows alternately. The high-frequency filter includes: a housing which forms a cavity inside; a conductive wall which has a square wave shape and is included in the cavity; and a plurality of unit resonators. Part of the plurality of the unit resonators are placed at one side from the wall and form a first resonator row, and the whole or part of the remaining unit resonators are placed at another side from the wall and form a second resonator row. When the square wave shaped wall is composed of a plurality of well structures including the top surface, lateral surface, and bottom surface, the unit resonators of the first resonator row and the second resonator row are attached onto the bottom surface of the well structure of the wall while the unit resonators of the first resonator row and the second resonator row are arranged alternately.