公开(公告)号：WO1997002618A1

公开(公告)日：1997-01-23

申请号：PCT/US1996006180

申请日：1996-05-02

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  SOKOLA, Raymond, L. ,  BALLANCE, Mark, H. ,  NEWELL, Michael, A. ,  HEINE, David, R. ,  MANSSEN, Keith, R.

IPC: H01P01/205

CPC classification number: H01P1/2056

Abstract: A ceramic filter (100) is disclosed. The filter (100) has a filter body comprising a dielectric material having a plurality of surfaces with each surface having a plurality of metallized through holes extending through the dielectric material defining a first series of resonators (102) in a first plane and a plurality of second metallized through holes in a different plane and extending transversely with relation to the first, defining a second series of resonators (104). The filter (100) also has a metallization layer substantially coating all surfaces of the filter (100) with the exception that a portion of the surface surrounding each resonator is left unmetallized, and a coupling structure (108) for coupling electrical signals into and out of filter (100).

Abstract translation: 公开了一种陶瓷过滤器（100）。 该过滤器（100）具有一个过滤体，该过滤体包括具有多个表面的电介质材料，每个表面具有多个金属化的通孔，该多个金属化通孔延伸穿过介电材料，在第一平面中限定第一系列谐振器（102） 第二金属化通孔在不同的平面中并且相对于第一金属化横截面延伸，限定第二系列谐振器（104）。 过滤器（100）还具有基本上涂覆过滤器（100）的所有表面的金属化层，除了围绕每个谐振器的部分表面未金属化，以及用于将电信号耦合到和流出的耦合结构（108） 的过滤器（100）。

公开(公告)号：WO1993002484A1

公开(公告)日：1993-02-04

申请号：PCT/US1992005279

申请日：1992-06-22

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  HEINE, David, R.

IPC: H01P01/202

CPC classification number: H01P1/205

Abstract: A multi-stage ceramic bandstop filter electrically isolates coupling between stages in a monolithic block of ceramic material (21) by including holes (32 and 36) between the resonator stages (30, 34, and 38) that are shorted at both the top and the bottom ends, that are coated with conductive material and that behave as electrical shields between the succeeding resonator stages electrically isolating and reducing signal coupling between stages. Isolation between stages is also provided by impedance inverting lengths of transmission line (50 and 52) that coupled the stages together.

公开(公告)号：WO1993002483A1

公开(公告)日：1993-02-04

申请号：PCT/US1992005235

申请日：1992-06-19

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  HEINE, David, R.

IPC: H01P01/202

CPC classification number: H01P1/2056

Abstract: In those monolithic ceramic filters that require resonator stages formed within a block of dielectric material to be electrically coupled together through discrete components, namely wires (44 and 46), a substantial space savings as well as improved electrical and mechanical performance can be realized by mounting the wires (44 and 46) within de-coupling cavities (36 and 40) when such de-coupling cavities are available and properly positioned with respect to the other resonator elements in the filter.

公开(公告)号：WO1995009451A1

公开(公告)日：1995-04-06

申请号：PCT/US1994009680

申请日：1994-08-26

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  HEINE, David, R. ,  BALLANCE, Mark, H.

IPC: H01P01/205

CPC classification number: H01P1/2136 ,  H01P1/205 ,  H01P11/007

Abstract: A multi-filter device comprising a ceramic block (10) having at least two filters (A and B). Both filters (A and B) include a notch (11 and 13, respectively) formed on one side of the ceramic block (10), such that these notches are flanked by ceramic block material extensions (32). So configured, coarse tuning of the ceramic block (10) can be accomplished through use of existing double-sided lap techniques, yet constant parameter alteration for both filters will be maintained during the milling process.

Abstract translation: 一种多过滤器装置，包括具有至少两个过滤器（A和B）的陶瓷块（10）。 两个过滤器（A和B）都包括形成在陶瓷块（10）的一侧上的凹口（11和13），使得这些凹口侧面是陶瓷块材料延伸部（32）。 如此配置，可以通过使用现有的双面搭接技术来实现陶瓷块（10）的粗调，但是在铣削过程中将保持两个过滤器的恒定参数改变。