公开(公告)号：US09281796B2

公开(公告)日：2016-03-08

申请号：US14729362

申请日：2015-06-03

Applicant: ST-Ericsson SA

Inventor： Patrick Reynaert ,  Shailesh Kulkarni ,  Dixian Zhao

IPC: H03H7/06 ,  H03H7/21 ,  H03H7/01

CPC classification number: H03H7/06 ,  H03H7/0138 ,  H03H7/21 ,  H03H2007/0192

Abstract: A two-stage, passive, RC polyphase filter for mm-wave quadrature LO generation is presented. The filter features an innovative, symmetrical layout structure, which is more robust to parasitics than the conventional layout. Layout parasitics which become important at mm-wave frequencies are identified and a compensated. Impedance variations and transfer functions are evaluated considering these dominant parasitics. More than 15 dB improvement in image rejection ratio is achieved in comparison with conventional layouts. Using the inventive techniques more than 35 dB of image rejection ratio over a bandwidth of 6 GHz is demonstrated in an outphasing transmitter at 60 GHz in 40 nm CMOS.

Abstract translation: 提出了一种用于毫米波正交LO生成的两级无源RC多相滤波器。 滤波器具有创新的对称布局结构，与传统布局相比，寄生效应更为鲁棒。 在mm波频率上变得重要的布局寄生效应被识别并得到补偿。 考虑到这些主要的寄生效应来评估阻抗变化和传递函数。 与传统布局相比，实现了超过15 dB的图像抑制比改善。 使用本发明的技术，在60GHz的40nm CMOS的外部发射机中证明了在6GHz的带宽上超过35dB的图像抑制比。

公开(公告)号：US09077307B2

公开(公告)日：2015-07-07

申请号：US13722509

申请日：2012-12-20

Applicant: ST-Ericsson SA

Inventor： Patrick Reynaert ,  Shailesh Kulkarni ,  Dixian Zhao

IPC: H03H7/06 ,  H03H7/01

CPC classification number: H03H7/06 ,  H03H7/0138 ,  H03H7/21 ,  H03H2007/0192

Abstract: A two-stage, passive, RC polyphase filter for mm-wave quadrature LO generation is presented. The filter features an innovative, symmetrical layout structure, which is more robust to parasitics than the conventional layout. Layout parasitics which become important at mm-wave frequencies are identified and a compensated. Impedance variations and transfer functions are evaluated considering these dominant parasitics. More than 15 dB improvement in image rejection ratio is achieved in comparison with conventional layouts. Using the inventive techniques more than 35 dB of image rejection ratio over a bandwidth of 6 GHz is demonstrated in an outphasing transmitter at 60 GHz in 40 nm CMOS.

Abstract translation: 提出了一种用于毫米波正交LO生成的两级无源RC多相滤波器。 滤波器具有创新的对称布局结构，与传统布局相比，寄生效应更为鲁棒。 在mm波频率上变得重要的布局寄生效应被识别并得到补偿。 考虑到这些主要的寄生效应来评估阻抗变化和传递函数。 与传统布局相比，实现了超过15 dB的图像抑制比改善。 使用本发明的技术，在60GHz的40nm CMOS的外部发射机中证明了在6GHz的带宽上超过35dB的图像抑制比。

公开(公告)号：US20150280680A1

公开(公告)日：2015-10-01

申请号：US14729362

申请日：2015-06-03

Applicant: ST-Ericsson SA

Inventor： Patrick Reynaert ,  Shailesh Kulkarni ,  Dixian Zhao

IPC: H03H7/01 ,  H03H7/06

CPC classification number: H03H7/06 ,  H03H7/0138 ,  H03H7/21 ,  H03H2007/0192

Abstract: A two-stage, passive, RC polyphase filter for mm-wave quadrature LO generation is presented. The filter features an innovative, symmetrical layout structure, which is more robust to parasitics than the conventional layout. Layout parasitics which become important at mm-wave frequencies are identified and a compensated. Impedance variations and transfer functions are evaluated considering these dominant parasitics. More than 15 dB improvement in image rejection ratio is achieved in comparison with conventional layouts. Using the inventive techniques more than 35 dB of image rejection ratio over a bandwidth of 6 GHz is demonstrated in an outphasing transmitter at 60 GHz in 40 nm CMOS.

Abstract translation: 提出了一种用于毫米波正交LO生成的两级无源RC多相滤波器。 滤波器具有创新的对称布局结构，与传统布局相比，寄生效应更为鲁棒。 在mm波频率上变得重要的布局寄生效应被识别并得到补偿。 考虑到这些主要的寄生效应来评估阻抗变化和传递函数。 与传统布局相比，实现了超过15 dB的图像抑制比改善。 使用本发明的技术，在60GHz的40nm CMOS的外部发射机中证明了在6GHz的带宽上超过35dB的图像抑制比。

公开(公告)号：US20140176259A1

公开(公告)日：2014-06-26

申请号：US13722509

申请日：2012-12-20

Applicant: ST-ERICSSON SA

Inventor： Patrick Reynaert ,  Shailesh Kulkarni ,  Dixian Zhao

IPC: H03H7/01 ,  H03H7/06

CPC classification number: H03H7/06 ,  H03H7/0138 ,  H03H7/21 ,  H03H2007/0192

Abstract: A two-stage, passive, RC polyphase filter for mm-wave quadrature LO generation is presented. The filter features an innovative, symmetrical layout structure, which is more robust to parasitics than the conventional layout. Layout parasitics which become important at mm-wave frequencies are identified and a compensated. Impedance variations and transfer functions are evaluated considering these dominant parasitics. More than 15 dB improvement in image rejection ratio is achieved in comparison with conventional layouts. Using the inventive techniques more than 35 dB of image rejection ratio over a bandwidth of 6 GHz is demonstrated in an outphasing transmitter at 60 GHz in 40 nm CMOS.

Abstract translation: 提出了一种用于毫米波正交LO生成的两级无源RC多相滤波器。 滤波器具有创新的对称布局结构，与传统布局相比，寄生效应更为鲁棒。 在mm波频率上变得重要的布局寄生效应被识别并得到补偿。 考虑到这些主要的寄生效应来评估阻抗变化和传递函数。 与传统布局相比，实现了超过15 dB的图像抑制比改善。 使用本发明的技术，在60GHz的40nm CMOS的外部发射机中证明了在6GHz的带宽上超过35dB的图像抑制比。