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Recent
Journal Papers
2007
C.T. Charles and D.J. Allstot, "Design considerations for
integrated CMOS reflective-type phase shifters, " Analog Integrated Circuits and
Signal Processing, vol. 50, pp. 221-229, March 2007.
H. Zarei, C.T. Charles and D.J. Allstot, "Reflective-type
phase shifters for multiple-antenna transceivers, " IEEE Trans. on Circuits and Systems
I: Regular Papers, vol. 54, pp. 1647-1656, Aug. 2007.
Y. Tang, K.-W. Cheng, S. Gupta,
J. Paramesh, and D.J. Allstot, "Cascaded complex ADCs with
adaptive digital calibration for I/Q mismatch, " IEEE Trans. on Circuits and Systems
I: Regular Papers, vol. 55, 2007. (to appear)
G. Banerjee, K. Soumyanath and D.J. Allstot, "Desensitized
CMOS low noise amplifiers, " IEEE Trans. on Circuits and Systems
I: Regular Papers, vol. 55, 2007. (to appear)
2006
K. Choi and D.J. Allstot, "Parasitic-aware design and
optimization of a CMOS RF Power Amplifier, " IEEE Trans. on
Circuits and Systems I: Regular Papers, vol. 53, pp. 16-25, Jan.
2006.
J. Park and D.J. Allstot, "A matrix amplifier in 0.18um
SOI CMOS, " IEEE Trans. on Circuits and Systems I: Regular
Papers, vol. 53, pp. 561-568, Mar. 2006.
C.T. Charles and D.J. Allstot, "Amplitude-locked loop
analysis for calibration applications, " IEE Electronic Letters,
vol. 42, pp. 614-615, May 2006.
G. Banerjee, K. Soumyanath and D.J. Allstot, "Measurement
and modeling errors in noise parameters of scaled-CMOS devices, " IEEE
Trans. on Microwave Theory and Techniques, vol. 54, pp. 2336-2345,
June 2006.
C.T. Charles and D.J. Allstot, "A calibrated
phase/frequency detector for reference spur reduction in charge-pump
PLLs, "IEEE Trans. on Circuits and Systems II: Express Briefs,
vol. 52, pp. 822-826, Sep. 2006.
S. Shekhar, J.S. Walling and D.J. Allstot, "Bandwidth extension
techniques for CMOS amplifiers, " IEEE J. Solid-State Circuits,
vol. 41, pp. 2424-2439, Nov. 2006.
J. Paramesh and D.J. Allstot, "Analysis of the bridged
T-coil circuit using the extra-element theorem, " IEEE Trans. on Circuits and Systems
II: Express Briefs, vol. 53, pp. 1408-1412, Dec. 2006.
A. Afzali-Kushaa, M. Nagata, N.K. Verghese and D.J. Allstot,
"Substrate noise coupling in SoC design: Modeling, avoidance, and
validation, " Proceedings of
the IEEE, vol. 94, pp. 2109-2138, Dec. 2006. (Invited Paper)
2005
S.J. Fang, A. Bellaouar, S.T. Lee and D.J. Allstot, "An
image rejection down-converter for low-IF receivers, " IEEE
Trans. on Microwave Theory and Techniques, vol. 53, pp. 478-487,
Feb. 2005.
M. Chu and D.J. Allstot, "Elitist nondominated sorting genetic
algorithm based RF IC optimizer, " IEEE Trans. on
Circuits and Systems I: Regular Papers, vol. 52, pp. 535-545, Mar.
2005.
D. Allstot, S. Aniruddhan, M. Chu, J. Paramesh, and S. Shekhar,
"Recent advances and design trends in CMOS radio frequency
integrated circuits, " International Journal of High Speed
Electronics and Systems (IJHSES), vol. 15, No. 2, pp. 377-428, June
2005. (Invited)
W. Zhuo, X. Li, S. Shekhar, S.H.K. Embabi, J. Pineda de Gyvez, D.J.
Allstot and E. Sanchez-Sinencio, "A capacitor cross-coupled
common-gate low noise amplifier, "IEEE Trans. on Circuits and
Systems II: Express Briefs, vol. 52, pp. 875-879, Dec. 2005.
J. Paramesh, R. Bishop, K. Soumyanath and D.J. Allstot, "A
four-antenna receiver in 90nm CMOS for beamforming and spatial
diversity, " IEEE J. Solid-State Circuits, vol. 40, pp.
2515-2524, Dec. 2005.
X. Li, S. Shekhar and D.J. Allstot,
"Gm-boosted LNA and VCO Circuits in 0.18um CMOS, "
IEEE J. Solid-State Circuits, vol. 40, pp. 2609-2619, Dec. 2005.
2004
T. Kim, X. Li and D.J. Allstot, "Compact model generation
for on-chip transmission lines, " IEEE Trans. on Circuits and
Systems I: Regular Papers, vol. 51, pp. 459-470, Mar. 2004.
J.H. Park, K.Y. Choi and D.J.
Allstot, "Parasitic-aware RF circuit design and optimization,
" IEEE Trans. on Circuits and Systems I: Regular Papers,
vol. 51, pp. 1953-1966, Oct. 2004.
J. Guo, W. Law, W.J. Helms and D.J. Allstot, "Digital calibration
for monotonic pipelined A/D converters, " IEEE Trans. on
Instrumentation and Measurement, vol. 53, pp. 1485-1492, Dec. 2004.
S.T. Lee, S.J. Fang, D.J. Allstot, A. Bellaouar, A.R. Fridi and P.A.
Fontaine, "A quad-band GSM-GPRS transmitter with digital
auto-calibration, " IEEE J. Solid-State Circuits, vol. 39,
pp. 2200-2214, Dec. 2004.
Recent
Conference Papers
2007
Y. Tang, S. Gupta, J.
Paramesh, and D.J. Allstot, "A digital-summing feedforward S-D
modulator and its application to a cascade ADC, " IEEE International Symposium on
Circuits and Systems, May 2007, pp. 485-488.
N.M. Neihart, S. Roy, and D.J.
Allstot, "A parallel multi-resolution sensing technique for
multiple antenna cognitive radios, " IEEE International Symposium on Circuits and Systems, May
2007, pp. 2530-2533.
J.S. Walling and D.J. Allstot, "Monolithic spiral
transformers: A design methodology, " IEEE International Symposium on Circuits and Systems, May
2007, pp. 3351-3354.
D. Ozis, J. Paramesh, and D.J. Allstot, "A CMOS 5GHz
image-reject receiver front-end architecture, " IEEE Radio Frequency IC Symposium,
June 2007, pp. 321-324.
S. Shekhar, S. Aniruddhan, and
D.J. Allstot, "A tuned-input tuned-output VCO in 0.18µm CMOS,
" IEEE Radio Frequency IC
Symposium, June 2007, pp. 607-610.
J.S. Walling, S. Shekhar, and
D.J. Allstot, "A gm-boosted current-reuse LNA in 0.18µm CMOS,
" IEEE Radio Frequency IC Symposium,
June 2007, pp. 613-616.
D.J. Allstot, S. Aniruddhan, M. Chu, N.M. Neihart, D. Ozis, S.
Shekhar, and J.S. Walling, "Low phase noise CMOS
voltage-controlled oscillators, " International Conference on ASIC, Oct. 2007. (Invited - to
appear)
2006
G. Banerjee, R. Bishop, K. Soumynath and D.J. Allstot, "A
1.4V/5GHz, 90-nm system-in-a-package LNA, " IEEE Radio and
Wireless Symposium, Jan. 2006, pp. 35-38.
M. Chu, J.M. Huard, K.Y. Wong, and
D.J. Allstot, "A 5GHz wide-range CMOS active phase shifter for
wireless beamforming applications, " IEEE Radio and Wireless
Symposium, Jan. 2006, pp. 47-50.
D. Ozis and D.J. Allstot, "A CMOS 5GHz phase-compensated
quadrature coupler, " IEEE Radio and Wireless Symposium,
Jan. 2006, pp. 51-54.
J.S. Walling and D.J. Allstot, "A 25dBm, 35% PAE, 7-12 GHz
power amplifier utilizing techniques to increase optimal load
impedance, " IEEE Topical Workshop on Power Amplifiers for
Wireless Communications, Jan. 2006, pp. 35-36.
C.T. Charles and D.J. Allstot, "A 2-GHz integrated CMOS
reflective-type phase shifter with 675º control range, " IEEE
Intl. Symposium on Circuits and Systems, May 2006, pp. 381-384.
C.T. Charles and D.J. Allstot, "A 2-GHz CMOS variable gain
amplifier optimized for low noise, " IEEE Intl. Symposium on
Circuits and Systems, May 2006, pp. 2305-2308.
C.T. Charles and D.J. Allstot, "A variable-offset phase detector
for phased array applications, " IEEE Intl. Symposium on
Circuits and Systems, May 2006, pp. 3430-3433.
S. Aniruddhan, S. Shekhar and
D.J. Allstot, "A delay generation technique for fast-locking
frequency synthesizers, " IEEE Intl. Symposium on Circuits and
Systems, May 2006, pp. 5463-5466.
S. Shekhar, S. Aniruddhan and
D.J. Allstot, "A fully-differential CMOS Clapp VCO for IEEE
802.11a applications, " IEEE Intl. Symposium on Circuits and
Systems, May 2006, pp. 3241-3244.
D. Ozis, J. Paramesh and D.J. Allstot, "Analysis and design of
lumped-element quadrature couplers with lossy passive elements, " IEEE
Intl. Symposium on Circuits and Systems, May 2006, pp. 2317-2320.
D.J. Allstot, C.T. Charles, D. Özis, S. Shekhar and J.S.
Walling, "RF CMOS design: Living with the substrate, " IEEE
Intl. Microwave Symposium Workshop: Substrate Effects in Si RFIC
Interconnects, June 2006, pp. 48-66.
D. Ozis, N.M. Neihart, and D.J. Allstot,
"Differential VCO and passive frequency doubler in 0.18mm CMOS for
24GHz applications, " IEEE Radio Frequency IC Symposium,
June 2006, pp. 45-48.
S. Shekhar, X. Li and D.J. Allstot, "A CMOS
3.1-10.6GHz UWB LNA employing stagger-compensated series peaking,
" IEEE Radio Frequency IC Symposium, June 2006, pp. 63-66.
J. Paramesh, R. Bishop, K. Soumyanath, and D.J. Allstot, "An
11-bit 330MHz 8X OSR S-D modulator for next-generation WLAN, " IEEE
VLSI Circuits Symposium, June 2006, pp. 206-207.
D.J. Allstot, C.T.
Charles, S. Kodali, X. Li, D. Ozis, J. Paramesh, S. Shekhar, and J.S.
Walling, " CMOS integrated transformers: coming of age, " IEEE
Intl. Conference on Solid-State and Integrated-Circuit Technology,
Oct. 2006, pp. 1480-1483. (invited)
2005
M. Chu and D.J. Allstot, "Elitist distributed particle
swarm optimization: An algorithm for analog/RFIC optimization, " Asia
and South Pacific Design Automation Conf., Jan. 2005, pp. 671-674.
M. Chu and D.J. Allstot, "Phase-locked loop synthesis using
hierarchical divide-and-conquer multi-optimization, " Asia and
South Pacific Design Automation Conference, Jan. 2005, pp. 675-678.
J. Paramesh, R. Bishop, K. Soumyanath and D.J. Allstot, "A 1.4V 5GHz
four-antenna Cartesian-combining receiver in 90nm CMOS for beamforming
and spatial diversity applications, " IEEE Intl. Solid-State
Circuits Conference, Feb. 2005, pp. 210-211.
X. Li, S. Shekhar and D.J. Allstot, "Low-power gm-boosted
LNA and VCO circuits in 0.18um CMOS, " IEEE Intl. Solid-State
Circuits Conference, Feb. 2005, pp. 534-535.
H. Zarei, A. Ecker, J. Park and D.J. Allstot, "A full-range
all-pass variable phase shifter for multiple antenna receivers, " IEEE
Intl. Symposium on Circuits and Systems, May 2005, pp. 2100-2103.
K. Naegle, S. Gupta and D.J. Allstot,
"Design considerations for a 10GHz CMOS transmit/receive switch,
" IEEE Intl. Symposium on Circuits and Systems, May 2005,
pp. 2104-2107.
C.T. Charles and D.J. Allstot, "A 360o extended range
phase detector for type-I phase-locked loops, " IEEE Intl.
Symposium on Circuits and Systems, May 2005, pp. 5457-5460.
S. Aniruddhan and D.J. Allstot, "Architectural issues in
base-station frequency synthesizers, " IEEE Intl. Symposium on
Circuits and Systems, May 2005, pp. 6034-6037.
D.J. Allstot, S. Aniruddhan, G. Banerjee, M. Chu, X. Li, J. Paramesh,
S. Shekhar, and K. Soumyanath, "Circuit techniques for CMOS
multiple-antenna transceivers, " IEEE Radio Frequency IC
Symposium, June 2005, pp. 225-228. (Invited)
V. Jandhyala, Y. Kuga, D.J. Allstot and C.J.R. Shi, "Bridging
circuits and electromagnetics in a curriculum aimed at microelectronic
analog and microwave simulation and design, " IEEE Intl.
Conference on Microelectronic Systems Education (MSE), June 2005,
pp. 45-46.
C.T. Peach, R. Bishop, A. Ravi, K. Soumyanath and D.J. Allstot, "A
9-b 400 Msample/s pipelined analog-to-digital converter in 90nm CMOS,
" European Solid-State Circuits Conference, Sept. 2005, pp.
535-538.
2004
M. Chu, D.J. Allstot, J.M.
Huard and K.Y. Wong, "NSGA-based parasitic-aware optimization of a
5GHz low-noise VCO, " Asia and South Pacific Design Automation
Conference, Jan. 2004, pp. 169-174. (Best Paper Award Nomination)
S. Lee, S. Fang, D.J. Allstot, A. Bellaouar, A. Fridi and P. Fontaine,
"A 1.5V 28mA fully-integrated fast-locking quad-band GSM/GPRS
transmitter with digital auto-calibration in 130nm CMOS, " IEEE
Intl. Solid-State Circuits Conference, Feb. 2004, pp. 188-189.
H. Zarei and D.J. Allstot, "A low-loss phase shifter in 180nm CMOS
for multiple-antenna receivers, " IEEE Intl. Solid-State
Circuits Conference, Feb. 2004, pp. 392-393.
D. Ozis, X. Li, J. Paramesh, H. Zarei and D.J. Allstot, "Building
blocks for a 10-GHz band smart antenna receiver in 0.25mm SiGe BiCMOS
technology, " IEEE Workshop on Wireless Circuits and Systems,
May 2004, pp. 43-44.
J. Park and D.J. Allstot, "A 12.5GHz RF matrix amplifier in 180nm
SOI CMOS, " IEEE Intl. on Symposium on Circuits and Systems,
May 2004, vol. I, pp. 117-120.
K. Choi and D.J. Allstot, "Post-optimization design centering for
RF circuits, " IEEE Intl. Symposium on Circuits and Systems,
May 2004, vol. I, pp. 956-959.
T. Kim and D.J. Allstot, "Tunable transmission line phase shifter
(TTPS), " IEEE Intl. Symposium on Circuits and Systems, May
2004, vol. I, pp. 972-975.
S. Aniruddhan, M. Chu and D.J. Allstot,
"A lateral-BJT-biased CMOS voltage-controlled oscillator, " IEEE
Intl. Symposium on Circuits and Systems, May 2004, vol. I, pp.
976-979.
J. Park and D.J. Allstot, "RF circuit synthesis using particle
swarm optimization, " IEEE Intl. Symposium on Circuits and
Systems, May 2004, vol. V, pp. 93-96.
S.J. Fang, A. Bellaouar, S.T. Lee and D.J. Allstot, "An image
rejection down-converter for low-IF receivers in 130nm CMOS, " IEEE
Radio Frequency IC Symposium, June 2004, pp. 57-60.
D.J. Allstot, X. Li and S. Shekhar, "Design considerations for
CMOS low-noise amplifiers, " IEEE Radio Frequency IC Symposium,
June 2004, pp. 97-100. (Invited)
K. Choi, D.J. Allstot and V. Krishnamurthy, "A 900MHz
fully-integrated GSM power amplifier in 250nm CMOS with breakdown
voltage protection and programmable conduction angle, " IEEE
Radio Frequency IC Symposium, June 2004, pp. 369-372. (Outstanding
Student Paper Third prize)
G. Banerjee, D.T. Becher, C. Hung, D.J. Allstot and K. Soumyanath,
"Measurement and modeling of noise parameters for desensitized low
noise amplifiers, " IEEE Custom IC Conference, Oct. 2004,
pp. 387-390.
M. Chu and D.J. Allstot, "A 6GHz low-noise quadrature Colpitts
VCO, " Proceedings of the IEEE Intl. Conference on
Electronic Circuits and Systems, Dec. 2004, pp. 21-24.
M. Chu, S. Shekhar, D.J. Allstot and
T.K. Bhattacharyya, "Design considerations for anti-phase injected
quadrature voltage-controlled oscillators, " Proceedings of
the IEEE Intl. Conference on Electronic Circuits and Systems,
Dec. 2004, pp. 25-28.
G. Banerjee, D.T. Becher, C. Hung, K. Soumyanath and D.J. Allstot,
"Desensitized design of MOS low noise amplifiers by Rn
minimization, " Proceedings of the IEEE Intl. Conference
on Electronic Circuits and Systems, Dec. 2004, pp. 619-622.
(Invited)
Recent Book
Chapters
D.J. Allstot, S. Aniruddhan, M. Chu, J. Paramesh and S.
Shekhar, "Recent Advances and Design Trends in CMOS Radio
Frequency Integrated Circuits, " in Design of High-Speed Communication Circuits, R. Harjani,
Editor, World Scientific Publishing Company, vol. 38, pp. 123-174,
2006. ISBN 981-256-590-6
D.J. Allstot, S. Shekhar, and J.S. Walling, "Design of
Wideband Amplifiers in CMOS, " in Circuits for Emerging Technologies: CMOS and Beyond, K.
Iniewski, Editor, CRC Press, 2008.
Recent
Patents
K. Choi and D.J. Allstot, "Self-Bias and Digitally Tunable
Conduction Angle Circuits for a Differential RF Non-Linear Power
Amplifier Employing Low-Voltage Transistors, " U.S. Patent #7,221,217 B2,
Issued May 22, 2007.
Ph.D.
Dissertations
K. Choi --
Parasitic-aware design and optimization of CMOS RF power amplifier-
2003 (3.9MB)
S-J Fang -- Complementary
metal-oxide-semiconductor frequency conversion techniques for WCDMA
-2003 (3.8MB)
S-T Lee -- Quad-band Global system
for mobile communications complementary metal-oxide-semiconductor
transmitter - 2003 (1.9MB)
J. Park -- Design of an RF CMOS
Ultra-wide amplifier using parasitic-aware synthesis and optimization
-2003 (4.2MB)
W. Law -- Digital calibration of
non-ideal pipelined analog-to-digital converters - 2003 (1.72MB)
T. Kim -- A CMOS tunable transmission
line phase shifter and voltage controlled-oscillator for wireless
communications - 2004 (1.51MB)
H. Zarei -- RF variable phase
shifters for multiple smart antennas - 2004
(4.29MB)
X. Li -- Low noise design techniques
for RFICs - 2004 (1.45MB)
M. Chu -- Phase-shifting techniques
for wireless multiple-antenna transmitter applications - 2005 (9.22MB)
D. Ozis --
Image-reject receiver architecture for radio frequency
integrated circuits - 2006
Sankaran Aniruddhan -- A fast-locking
frequency synthesizer for GSM base-stations in 180nm CMOS - 2006
J. Paramesh -- CMOS Multi-antenna
receivers: architectures and circuits - 2006
C. Charles -- A Calibrated Phase and
Amplitude Control System for Phased-Array Transmitters - 2006
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