FILTER AND HIGH FREQUENCY DEVICE

• Main Authors: HOJO KOYA, MATSUDA TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 05.10.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE; WAVEGUIDES

To enlarge a coupling coefficient between resonators.SOLUTION: A filter comprises: a first dielectric layer 12d; a second dielectric layer 12e; a first conductive layer 14d provided on the side opposite to the second dielectric layer with respect to the first dielectric layer; a plurality of first conductor posts 16d penetrating the first dielectric layer; a first space 11b having a first center 50b so as to be surrounded by the plurality of first conductor posts; a second conductive layer 14f provided on the side opposite to the first dielectric layer with respect to the second dielectric layer so as to be contacted to the second dielectric layer; a conductor post 16e penetrating the second dielectric layer; a second space 11c having a second center 50c surrounded by a plurality of second conductor posts; and a third conductive layer 14e provided on both sides at the first and second centers in a plan view, having a pair of openings 18e which are not overlapped with the first and second centers, provided between the first dielectric layer and the second dielectric layer, and contacted to the first dielectric layer and the second dielectric layer.SELECTED DRAWING: Figure 5 【課題】共振器間の結合係数を大きくすること。【解決手段】フィルタは、第１誘電体層１２ｄと、第２誘電体層１２ｅと、第１誘電体層に対し第２誘電体層と反対側に設けられた第１導電体層１４ｄと、第１誘電体層を貫通する複数の第１導電体ポスト１６ｄと、複数の第１導電体ポストに囲まれ第１中心５０ｂを有する第１空間１１ｂと、第２誘電体層に対し第１誘電体層と反対側に設けられ、第２誘電体層に接する第２導電体層１４ｆと、第２誘電体層を貫通する導電体ポスト１６ｅと、複数の第２導電体ポストに囲まれた第２中心５０ｃを有する第２空間１１ｃと、平面視において第１中心および第２中心の両側に設けられ、第１中心および第２中心に重ならない一対の開口１８ｅを有し、第１誘電体層と第２誘電体層との間に設けられ、第１誘電体層および第２誘電体層に接する第３導電体層１４ｅとを備える。【選択図】図５