公开(公告)号：US20140091881A1

公开(公告)日：2014-04-03

申请号：US14030357

申请日：2013-09-18

Applicant: STMicroelectronics SA

Inventor： Jean-Christophe Ricard ,  Cedric Durand ,  Frederic Gianesello

IPC: H03H7/01

CPC classification number: H03H7/0138 ,  H03H3/00 ,  H03H7/0115 ,  H03H7/0161 ,  H03H7/075 ,  H03H7/12 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/1783 ,  H03H7/1791 ,  H03H7/463

Abstract: A passive filter may include at least one elliptical filter unit and at least one asymmetric rejection filter unit coupled in series with the elliptical filter unit. The at least one asymmetric rejection filter unit may have a frequency response curve that includes a dip with different attenuations on either side, and an overshoot upon exiting the dip at the side with the lower attenuation.

Abstract translation: 无源滤波器可以包括至少一个椭圆滤波器单元和与椭圆滤波器单元串联耦合的至少一个不对称拒绝滤波器单元。 所述至少一个不对称拒绝滤波器单元可以具有频率响应曲线，其包括在任一侧具有不同衰减的倾角，以及在具有较低衰减的一侧退出倾斜时的过冲。

公开(公告)号：US09257956B2

公开(公告)日：2016-02-09

申请号：US14030357

申请日：2013-09-18

Applicant: STMicroelectronics SA

Inventor： Jean-Christophe Ricard ,  Cedric Durand ,  Frederic Gianesello

IPC: H03H7/01 ,  H03H3/00 ,  H03H7/12 ,  H03H7/075 ,  H03H7/46

CPC classification number: H03H7/0138 ,  H03H3/00 ,  H03H7/0115 ,  H03H7/0161 ,  H03H7/075 ,  H03H7/12 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/1783 ,  H03H7/1791 ,  H03H7/463

Abstract: A passive filter may include at least one elliptical filter unit and at least one asymmetric rejection filter unit coupled in series with the elliptical filter unit. The at least one asymmetric rejection filter unit may have a frequency response curve that includes a dip with different attenuations on either side, and an overshoot upon exiting the dip at the side with the lower attenuation.

Abstract translation: 无源滤波器可以包括至少一个椭圆滤波器单元和与椭圆滤波器单元串联耦合的至少一个不对称拒绝滤波器单元。 所述至少一个不对称拒绝滤波器单元可以具有频率响应曲线，其包括在任一侧具有不同衰减的倾角，以及在具有较低衰减的一侧退出倾斜时的过冲。