公开(公告)号：US09935579B2

公开(公告)日：2018-04-03

申请号：US14995101

申请日：2016-01-13

Applicant: Samsung Electronics Co., Ltd

Inventor： Richard Gu ,  Daquan Huang

IPC: H03L7/24 ,  H03B5/12

CPC classification number: H03B5/1234 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1237 ,  H03B2200/0074 ,  H03L7/24

Abstract: A master voltage controlled oscillator (VCO) produces an output signal at an operating frequency of at least 100 gigaHertz (GHz). A buffer VCO injection-locked to an output of the master VCO produces an output signal at the operating frequency with a voltage swing greater than 50% of an output voltage swing of the master VCO output signal. The buffer VCO operates without pulling, and can drive a load of at least three times greater than a nominal load. Phase noise in the output of the buffer VCO is as much as −96 decibels (dB) relative to the carrier (dBc) per Hertz (Hz) at 125 GHz with a 1 megaHertz (MHz) offset.

公开(公告)号：US20170201214A1

公开(公告)日：2017-07-13

申请号：US14995101

申请日：2016-01-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Richard Gu ,  Daquan Huang

IPC: H03B5/12 ,  H03L7/24

CPC classification number: H03B5/1234 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1237 ,  H03B2200/0074 ,  H03L7/24

Abstract: A master voltage controlled oscillator (VCO) produces an output signal at an operating frequency of at least 100 gigaHertz (GHz). A buffer VCO injection-locked to an output of the master VCO produces an output signal at the operating frequency with a voltage swing greater than 50% of an output voltage swing of the master VCO output signal. The buffer VCO operates without pulling, and can drive a load of at least three times greater than a nominal load. Phase noise in the output of the buffer VCO is as much as −96 decibels (dB) relative to the carrier (dBc) per Hertz (Hz) at 125 GHz with a 1 megaHertz (MHz) offset.