A waveform-shaping millimeter-wave oscillator with 184.7dBc/Hz FOM in 40nm digital CMOS process

Files in This Item:
File Description SizeFormat 
IMS2015_Luo.pdf1.27 MBAdobe PDFDownload
Title: A waveform-shaping millimeter-wave oscillator with 184.7dBc/Hz FOM in 40nm digital CMOS process
Authors: Luo, Xun
Qian, Huizhen Jenny
Staszewski, Robert Bogdan
Permanent link: http://hdl.handle.net/10197/7305
Date: 22-May-2015
Online since: 2015-12-14T15:52:45Z
Abstract: In this paper, a topology for millimeter-wave (mm­ wave) oscillator with a waveform-shaping operation is proposed with improved phase-noise. The 3rd harmonic enhancement for enforcing a pseudo-square voltage waveform and adjustable tuning-banks for wide tuning range are simultaneously achieved, based on a multi-stage broadside-coupled transformer (MSBCT) with recon gurable coupling factors at mm-wave. Meanwhile, to meet the high-Q, high-resolution, and metal density limits, a novel 3D self-shielded capacitor is developed for implementation of tuning-banks operating at mm-wave. To verify the mechanism of the structures above, a waveform-shaping mm-wave digitally­ controlled oscillator (DCO) is fabricated. The proposed oscillator has a state-of-the-art gure-of-merit (FoM) of 184.7dBcIHz at 58.1 GHz under 110°C, despite being realized in a digital CMOS 40nm process without customary ultra-thick metal option. The resolution for this DCO is about 2.5MHz within the whole tuning range. The chip core size is 315um by llOum.Index Terms-3D self-shielded capacitor, digitally-controlled oscillator (DCO), multi-stage broadside-coupled transformer (MSBCT), waveform-shaping, millimeter-wave (mm-wave).
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2015 IEEE
Keywords: 3D self-shielded capacitorDigitally-controlled oscillator (DCO)Multi-stage broadside-coupled transformer (MSBCT)Waveform-shapingMillimeter-wave (mm-wave)
DOI: 10.1109/MWSYM.2015.7167075
Language: en
Status of Item: Peer reviewed
Is part of: Procedings of IEEE MTT-S International Microwave Symposium (IMS) 2015
Conference Details: IEEE MTT-S International Microwave Symposium (IMS), Phoenix, Arizona, USA, 17 - 22 May 2015
ISBN: 978-1-4799-8275-2/15
Appears in Collections:Electrical and Electronic Engineering Research Collection

Show full item record

Citations 50

Last Week
Last month
checked on May 23, 2019

Download(s) 50

checked on May 25, 2018

Google ScholarTM



This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.