A Low Phase Noise and High FoM Distributed-Swing-Boosting Multi-Core Oscillator Using Harmonic-Impedance-Expanding Technique

A cross coupled low phase noise oscillator using an output swing enhancement technique

A new voltage controlled oscillator (VCO) in a 0.18 μm CMOS process is offered in this paper. This paper's argument is to provide an innovative approach to improve the phase noise which is one of the most controversial issues in VCOs. Contrary to most ideas that have been put forward to decrease phase noise which are based on higher current dissipation to increase output voltage swing, this new...

A High Power and Low Phase Noise 76 GHz MMIC Oscillator with Optimized Harmonic Load

近年のミリ波帯無線技術の目覚ましい発展は車載 レーダの実用化及び普及をもたらし,車載レーダの需 要は現在も増加傾向にある.またミリ波帯無線技術を 用いた路車間通信,車車間通信といった高度交通情報 システムの実用化を目指した開発が進められており, ミリ波帯無線装置の更なる高性能化及び低コスト化に 向けた研究が活発に行われている [1], [2]. 無線装置における高周波電気信号の発生源となる発 振器の諸特性は,無線装置全体の性能に影響を及ぼす. これまで発振器は出力周波数,位相雑音,変調範囲と いった特性が重視されてきた.位相雑音は通信システ ムやレーダシステムのエラーレートに影響を及ぼすた め,より低位相雑音の発振器が求められている.また 無線装置の構成は信号源である発振器の出力周波数に 大きく左右される.発振器の出力周波数が低い場合に は,無線装置は逓倍器を必要とし複雑な構成となる...

A Multi-material Low Phase Noise Optomechanical Oscillator

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission....

A Low Power Low Phase Noise Oscillator for MICS Transceivers

A low-power, low-phase-noise quadrature oscillator for Medical Implantable Communications Service (MICS) transceivers is presented. The proposed quadrature oscillator generates 349~689 MHz I/Q (In-phase and Quadrature) signals covering the MICS band. The oscillator is based on a differential pair with positive feedback. Each delay cell consists of a few transistors enabling lower voltage operat...

Low Phase Noise Voltage - Controlled Oscillator