RFIC for Mobile Wireless Communication

RFIC for Vehicular Communication and Radar

RF & MMW in VIRTUS

Assoc. Professor Boon Chirn ChyeProgramme Director, RF & MM-wave, VIRTUS, NTUAssoc. Editor, IEEE Transaction of VLSI; EEE NTU Teaching Excellent Award 2012; Commendation Award for Teaching Excellence 2014.IEEE Electron Devices Letters Golden Reviewer.

Web: http://www.ntu.edu.sg/home/eccboon

Research Leadership

Funding Source Quantum ($) Role Grant Period

Huawei Tech. Co. Ltd-NTU Joint R&D:

10GiFi research & development of ultra-

wideband RF transceiver

S$927,840.00 PI 15th July 2014 to

14th July 2017

Tier 2: High Thermal Resolution Ultra-Low

Power Integrated Imager: Fund. Issues in

CMOS

S$885,352.00 PI July 2013 to June

2016

Project 17: Electronic Circuit Design,

Communications under SMART-IRG5: Low

Energy Electronic Systems (MIT-NTU)

S$836,400.00 for

year 2015 and

2016.

PI 1st April 2014 to

30th March 2016

Project 2: Electronic Circuit Design,

Communications under SMART-IRG5: Low

Energy Electronic Systems (MIT-NTU)

S$376,200.00 for

year 2014.

PI 1st April 2013 to

30th March 2014

Project 10: Electronic Circuit Design,

Communications under SMART-IRG5: Low

Energy Electronic Systems (MIT-NTU)

S$391,560.00 for

year 2013.

PI 1st April 2012 to

30th March 2013

Research Leadership

Funding Source Quantum ($) Role Grant Period

Project 10: Electronic Circuit Design,

Communications under SMART-IRG5: Low

Energy Electronic Systems (MIT-NTU)

S$391,560.00 for

year 2013.

PI 1st April 2012 to

30th March 2013

SMA (MIT-NTU) CMOS Front-end S$45,000.00 PI 5th August 2013

to 4th August

2017

SMA (MIT-NTU) High Speed CMOS S$45,000.00 PI 13th January

2014 to 12th

August 2018

ARC3/09: Batteryless Flexible Transceiver

for Biomedical Applications

S$1,186,270.00 PI May 2009 to July

2012

RG73/07: Ultra-low Power Fully Integrated

CMOS 24GHz Receiver

S$208,258.22 PI March 2008 to

October 2011.

Funding Source Quantum ($) Role Grant Period

NRF : An Ultra Low-Power RF Transceiver

Chip towards a New Paradigm of Life

Quality

S$250,000.00 Co-PI February 2009

to February

2010

University of Electronic Science and

Technology (UEST) of China-NTU Joint

R&D, jointly funded by UEST and NTU :

System-on-chip: Realization of Software

Radio

S$331,125.00 Co-PI 3 December

2008 to 2

December 2009

Agency for Science, Technology and

Research (A*STAR) : An Ultra Low-Power

RFIC Chip For Wireless and

Communication

S$1,210,020.00 Co-PI March 2006 to

February 2009

NRF : An Ultra Low-Power RF Transceiver

Chip towards a New Paradigm of Life

Quality

S$250,000.00 Co-PI February 2009

to February

2010

University of Electronic Science and

Technology (UEST) of China-NTU Joint

R&D, jointly funded by UEST and NTU :

System-on-chip: Realization of Software

Radio

S$331,125.00 Co-PI 3 December

2008 to 2

December 2009

World Fastest Consumer WiFi IEEE 802.11ax Integrated Circuit (IC) R&D

• D2D (Device-to-Device) communications using DSRC– to off-load the base stations in cellular networks– to improve response time

6

LEES: Motivation

* DSRC (Dedicated Short-Range Communication

*

LEES : Single Chip WiFi and D-2-D

AchievedNo. of patent

9 US Provisional Patents

1. P. Choi, C. C. Boon, L. S. Peh,“A High Efficiency WidebandCompact Power AmplifierModule”. STLO Ref: 15122S-LEES, June. 2015.

2. M. D. Mao, C. C. Boon, L. S.Peh, “A High EfficiencyWideband Compact PowerAmplifier Module”. STLO Ref:15122S-LEES, June. 2015.

New Invention Disclosures

8

LEES: Goal of 802.11p system: D2D

• Making use of an existing WiFi solution on a smartphone, combined with 802.11p front-end circuit

9

LEES: Project progress (2014~15)Process

Circuit Design Fabrication Measurement Note

GaN

RF front-end

RFIC14,TMTT15

DC booster Submitted

Ringoscillator

CSICS15

CMOS

RF receiver Measured

Neg. bias gen.

Minor revision

FPGA board: 802.11p MAC & baseband developed & verified with SmartphoneDiscrete component: ADC/DAC/PLL purchased (Eval. Board) & verified

Smartphone: Android application (Sonar) developed & verified with FPGA

10

LEES: CMOS bias gen. for D-GaN HEMT

(GF 0.18um CMOS)

• Fully integrated negative bias gen.

– 1.8V/3.3V input

– Negative voltage output

– Regulation to be revised

-1.68V @ 0.125MHz clock-2.70V @ 0.25MHz clock-5.17V @ 2MHz clock

11

LEES: High efficiency technique

Conventional Tx/Rx Switching Scheme

Proposed Tx/Rx Switching Scheme

� = ��� × 10� ��,���� ��⁄

���� = ����,�� − ��,����

� = ���

���� = ����,��

39.7% @ 794mW

(due to 1dB SPDT loss)

50% @ 1W

LEES: Complete IEEE802.11p Test

802.11p OFDM output @ DAC (Freq. domain vs. Time domain)

1) 802.11p Airblue baseband (originally designed for 802.11a)2) Android phone-to-PHY interface for packet Tx/Rx3) RF interface for Tx power control

w/o filter w/ filter

vs.

MMW High Gain Power Amplifier

IEEE 802.15.3c Power Amplifier

This work demonstrates an ILPA with largest injection locking bandwidth. The fabricated PA has achieved a injection locking range from 50 GHz to 59 GHz. Maximum output power of 11.39 dBm has been obtained while the highest PAE is 16.1 %. Moreover, the chip size is 260 μm x 400 μm excluding pads.

First 10+ Gb/s transmitter with fractional pre-emphasis (FPE) die photograph with ultra-compact active area

(a) First 10+ Gb/s transmitter with fractional pre-emphasis (FPE) die photograph with ultra-compact active area (0.0081 mm2).(b) Measured 12 Gb/s before channel pre-corrected using fractional pre-emphasis.(c) Measured 12 Gb/s after lossy channel showing excellent performance (4.05 ps RMS jitter, 24.89 ps Pk-to-Pk jitter and 87 mV vertical opening under 2^31-1 PRBS input).

Non-invasive Blood Glucose Detection

Continuous glucose monitoring systems (CGMS) is a necessary tool for the diabetics to monitor their glucose level and take preventive actions.

Patent filedNovel Comparable, Low cost, non-invasive methodology.

Ref. 0 Prototype:A total of 96 sample points indicate readings in Clarke grid A (26.66%) and B (73.34%) which is clinically acceptable.

Non-invasive Blood Glucose Detection

Compact Integrated Circuit Non-invasive Blood Glucose Detection (GF 65nm).

24hr blood glucose detection.

Android Apps instant report.Cloud connection for report and data transfer to hospital.

An Asynchronous 10-Bit 12.5% Redundant 200 Msps SAR ADC WITH BUILT IN ERROR CORRETION(0.7fF unit cap )

Solution for noisy environment.As it is difficult to build high resolution high speed ADC due to

imperfection (in components for example).

An Asynchronous 10-Bit 12.5% Redundant 200 Msps SAR ADC WITH BUILT IN ERROR CORRETION(0.7fF unit cap )

• 12.5% Redundancy• Error Correction- Can

correct up to 3 incorrect decisions in 1 conversion cycle

• Relaxes Reference Buffer Settling Time/Power Consumption

• Finishes 10bit Conversion in 9 cycles

• Bottom Plate Sampling• 0.7fF MOM Unit Capacitor

Thank you for your time and effort to understand my work. Web: http://www.ntu.edu.sg/home/eccboon