| 摘要 |
PURPOSE: To improve the performance of a mobile communication equipment employing the dielectric filter with light weight and thin profile. CONSTITUTION: A ground electrode face formed to a flat part of a dielectric material of microstrip line structures 11, 11' is connected directly to a ground electrode face formed to a flat part of the dielectric material of a strip line structure 12 and microstrip line electrodes 11a, 11a', 11b, 11b' are arranged so as to be perpendicular with respect to a board face (face on which filter is located) in the lengthwise direction of them. The dielectric filter is a filter where one of line electrodes is formed to be input output terminals on a board face. The microstrip line electrode and the strip line electrode are connected by metallic paste and an insertion loss due to a resistance at a connection part of the electrodes is small. |
