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    • 19. 发明专利
    • Ablative method for forming rf ceramic block filters
    • 形成射频陶瓷滤芯的成像方法
    • JP2006180544A
    • 2006-07-06
    • JP2006027931
    • 2006-02-06
    • Cts Corpシーティーエス・コーポレーションCts Corporation
    • BLAIR RAYMOND GROMBACH EDWARD JSIMONS RANDAL NPASCO WAYNE D
    • C04B41/88H01P11/00C04B41/91H01P1/205H01P1/213H05K1/09H05K3/02
    • H01P11/007H01P1/2056H05K1/092H05K3/027Y10T29/49128Y10T29/49155Y10T29/49156Y10T29/49165
    • PROBLEM TO BE SOLVED: To provide a filter and a duplexer wherein conductive regions are sufficiently separated from each other and dimension accuracy of filter patterns and input/output pads is improved. SOLUTION: A duplexer 42 is constituted of a dielectric block that is a polygon including at least one flat outer surface. Furthermore, the entire outer surface of a polygon of the dielectric block is coated with a metallic material. A ground plane 80 is formed as a metal surface constituted of a conductive material 82. A reception filter 46 is formed in a first area on the flat surface of the dielectric block 1 and includes conductive elements 60, 62, 64, 66, 68. The first conductive element is surrounded with trenches or recesses 74, 76, 78 so that the conductive elements are electrically isolated from each other, each of the conductive elements is recessed just for predetermined depth or width, thereby inducing electrostatic coupling between the conductive element and the ground plane, and operational characteristics of the reception filter such as an operational frequency can be adjusted by the electrostatic coupling. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种滤波器和双工器,其中导电区域彼此充分分离,并且改善了滤波器图案和输入/输出焊盘的尺寸精度。 解决方案:双工器42由作为包括至少一个平坦外表面的多边形的介质块构成。 此外,介电块的多边形的整个外表面涂覆有金属材料。 接地平面80形成为由导电材料82构成的金属表面。接收滤波器46形成在介质块1的平坦表面上的第一区域中,并包括导电元件60,62,64,66,68。 第一导电元件被沟槽或凹槽74,76,78包围,使得导电元件彼此电绝缘,每个导电元件仅凹入预定的深度或宽度,从而导致导电元件和 接地平面和操作频率等接收滤波器的操作特性可以通过静电耦合进行调整。 版权所有(C)2006,JPO&NCIPI