公开(公告)号：US07764146B2

公开(公告)日：2010-07-27

申请号：US12139121

申请日：2008-06-13

申请人： Ming Yu ,  S. Vahid Miraftab

发明人： Ming Yu ,  S. Vahid Miraftab

IPC分类号： H01P1/20 ,  H01P1/23 ,  H01P3/08

CPC分类号： H01P1/2084

摘要： A cavity microwave filter assembly for filtering an electromagnetic wave including a plurality of cavity resonator assemblies, where each cavity resonator assembly has a bottom and including at least one lossy element for electromagnetically coupling two elements of the filter assembly, where at least one element is a cavity resonator assembly. The lossy elements provide attenuation in the loss variation of the filter and sharper slopes resulting in an improved Q factor for the filter. A method for realizing lossy elements as resistors requires determining an equivalent circuit model that can be manufactured using resistors, coupling elements, and transmission lines. The method includes representing the resistive element with a resistor, unity admittance inverters and coupling elements and then scaling to determine the resistor and coupling values. The method further includes replacing the admittance inverters with transmission lines of the appropriate length to account for the specific design of the filter.

摘要翻译： 一种空腔微波滤波器组件，用于对包括多个空腔谐振器组件的电磁波进行滤波，其中每个空腔谐振器组件具有底部并且包括用于电磁耦合过滤器组件的两个元件的至少一个有损元件，其中至少一个元件为 空腔谐振器组件。 有损元素在滤波器的损耗变化和更尖锐的斜率上提供衰减，导致滤波器的Q因子提高。 用于实现有损耗元件作为电阻器的方法需要确定可以使用电阻器，耦合元件和传输线制造的等效电路模型。 该方法包括用电阻表示电阻元件，单位导纳反相器和耦合元件，然后缩放以确定电阻器和耦合值。 该方法还包括用适当长度的传输线代替导纳逆变器以考虑滤波器的具体设计。

公开(公告)号：US20090309678A1

公开(公告)日：2009-12-17

申请号：US12139121

申请日：2008-06-13

申请人： Ming Yu ,  S. Vahid Miraftab

发明人： Ming Yu ,  S. Vahid Miraftab

IPC分类号： H01P1/208 ,  G06F17/50

CPC分类号： H01P1/2084

摘要： A cavity microwave filter assembly for filtering an electromagnetic wave including a plurality of cavity resonator assemblies, where each cavity resonator assembly has a bottom and including at least one lossy element for electromagnetically coupling two elements of the filter assembly, where at least one element is a cavity resonator assembly. The lossy elements provide attenuation in the loss variation of the filter and sharper slopes resulting in an improved Q factor for the filter. A method for realizing lossy elements as resistors requires determining an equivalent circuit model that can be manufactured using resistors, coupling elements, and transmission lines. The method includes representing the resistive element with a resistor, unity admittance inverters and coupling elements and then scaling to determine the resistor and coupling values. The method further includes replacing the admittance inverters with transmission lines of the appropriate length to account for the specific design of the filter.

摘要翻译： 一种空腔微波滤波器组件，用于对包括多个空腔谐振器组件的电磁波进行滤波，其中每个空腔谐振器组件具有底部并且包括用于电磁耦合过滤器组件的两个元件的至少一个有损元件，其中至少一个元件是 空腔谐振器组件。 有损元素在滤波器的损耗变化和更尖锐的斜率上提供衰减，导致滤波器的Q因子提高。 用于实现有损耗元件作为电阻器的方法需要确定可以使用电阻器，耦合元件和传输线制造的等效电路模型。 该方法包括用电阻表示电阻元件，单位导纳反相器和耦合元件，然后缩放以确定电阻器和耦合值。 该方法还包括用适当长度的传输线代替导纳逆变器以考虑滤波器的具体设计。