Publications

Last Updated: April 2024

Journal

1. M. Pirrone, E. Dall’Anese, T. Barton, “Data-Driven Optimization Strategies for Tunable RF Systems,” IEEE Transactions on Microwave Theory and Techniques,vol. 72, no. 3, pp. 1919-1931, Mar. 2024.   link 

2. D. Donahue, T. Barton, “Power detector performance and placement effects on measurement accuracy in sampled-network reflectometry,” IEEE Transactions on Microwave Theory and Techniques, vol. 72, no. 1, pp. 194–211, Jan. 2024. link 

3. W. Sear, T. Barton, “Load modulating loop combiner for linear power amplification.” IEEE Microwave and Wireless Components Letters, vol. 33, no. 2, pp. 185–187, Feb. 2023.   link 

4. K. Vivien , P. de Falco, O. Venard, G. Baudoin, P. Pierre-Charles-Felix, T. Barton, “Linear load modulated balanced amplifier design method based on complex impedance trajectories.” IEEE Journal of Microwaves, vol. 2, no. 1, pp. 199-213, Jan. 2022.  link

5. D. Martin, T. Barton, “Inphasing signal component separation for an X-band outphasing power amplifier,” IEEE Transactions on Microwave Theory and Techniques, vol. 69, no. 3, pp. 1661-1674, March 2021.  link

6. W. Sear, T. Barton, “Wideband IMD3 suppression through negative baseband impedance synthesis,” IET Microwaves, Antennas, & Propagation, vol. 15, pp. 728-743, March 2021.  link 

7. D. Fishler, Z. Popovic, T. Barton, “Supply modulation behavior of a Doherty power amplifier.” IEEE Journal of Microwaves, vol. 1, no. 1, pp. 508-512, Jan. 2021. link 

8. D. Donahue, P. de Falco, T. Barton, “Power amplifier with load impedance sensing integrated into the output matching network.” IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 67, no. 12, pp. 5113-5124, Dec. 2020.  link  

9. J. Estrada, E. Kwiatkowski, A. L´opez-Yela, M. Borgo˜n´os-Garc´ıa, D. Sagovia-Vargas, T. Barton, Z. Popovic, “An RF-harvesting tightly-coupled rectenna array tee-shirt with greater than octave bandwidth.” IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 9, pp. 3908-3919, Sept. 2020.  link   

10. W. Sear, T. Barton, “Power amplifier stabilization through out-of-band feedback.” IEEE Microwave and Wireless Components Letters, vol. 30, no. 8, pp. 768-771, Aug. 2020.  link   

11. D. Martin, P. de Falco, M. Roberg, G. Lasser, T. Barton, “An 18–38 GHz K/Ka-band reconfigurable Chireix outphasing GaAs MMIC power amplifier.” IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 7, pp. 3028-3038, July 2020.  link  

12. C. Cooke, K. M. K. J. Leong, A. Escorcia, K. Nguyen, X. B. Mei, J. Arroyo, T. Barton, D. Wu, W. Deal, “A 220 GHz InP HEMT direct detection polarimeter,” IEEE Transactions on Microwave Theory and Techniques, vol. 67, no. 12, pp. 5191-5201, Dec. 2019,  link 

13. T. Cappello, P. Pednekar, C. Florian, S. Cripps, Z. Popovic, T. Barton, “Supply- and load-modulated balanced amplifier for efficient broadband 5G systems.” IEEE Transactions on Microwave Theory and Techniques, vol. 67, no. 7, pp. 3122-3133, July 2019. link

14. T. Cappello, A. Duh, T. Barton, Z. Popovic, “A dual-band dual-output power amplifier for carrier aggregation.” IEEE Transactions on Microwave Theory and Techniques, vol. 67, no. 7, pp. 3134-3146, July 2019. link

15. H.-C. Chang, Y. Hahn, P. Roblin, T. Barton, “New mixed-mode design methodology for high-efficiency outphasing Chireix amplifiers.” IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 66, no. 4, pp. 1594-1607, April 2019. link

16. P. Pednekar, W. Hallberg, C. Fager, T. Barton, "Analysis and design of a Doherty-like RF-input load modulated balanced amplifier." IEEE Transactions on Microwave Theory and Techniques vol. 66, no. 12, pp. 5322-5335, Dec. 2018. link

17. T. Cappello, T.W. Barton, C. Florian, M. Litchfield, Z. Popovic, "Multilevel Supply-Modulated Chireix Outphasing with Continuous Input Modulation." IEEE Transactions on Microwave Theory and Techniques vol. 65, no. 12, pp. 5231-5243, Dec. 2017. link

18. P. Pednekar, E. Berry, T.W. Barton, "RF-input load modulated balanced amplifier with octave bandwidth." IEEE Transactions on Microwave Theory and Techniques vol. 65, no. 12, pp. 5181-5191, Dec. 2017. link

19. P.E. de Falco, P. Pednekar, K. Mimis, S. Ben Smida, G. Watkins, K. Morris, T.W. Barton, "Load modulation of harmonically tuned amplifiers and application to outphasing systems." IEEE Transactions on Microwave Theory and Techniques vol. 65, no. 10, pp. 1-17, Aug. 2017. link

20. T.W. Barton, A.S. Jurkov, P.H. Pednekar, D.J. Perreault, "Multi-way lossless outphasing system based on an all-transmission-line combiner." IEEE Transactions on Microwave Theory and Techniques vol. 64, no. 4, pp. 1313-1326, March 2016. link

21. T.W. Barton, "Not just a phase: Outphasing power amplifiers." IEEE Microwave Magazine , vol. 17, no. 2, pp. 18-31, Feb. 2016 link

22. T.W. Barton, and D.J. Perreault, "Theory and Implementation of RF-Input Outphasing Power Amplification." IEEE Transactions on Microwave Theory and Techniques, vol. 63, no. 12, pp. 4273-4283, Dec. 2015. link

23. T.W. Barton, J.M. Gordonson, and D.J. Perreault, "Transmission Line Resistance Compression Networks and Applications to Wireless Power Transfer." IEEE Journal for Emerging and Selected Topics in Power Electronics, vol. 3, no. 1, pp. 252-260, March 2015. link

24. T.W. Barton and D.J. Perreault, "Four-Way Microstrip-Based Power Combining for Microwave Outphasing Power Amplifiers." IEEE Transactions on Circuits and Systems--I:Regular Papers, vol. 61, no. 10, pp. 2987-2998, Oct. 2014. link

25. T.W. Barton, J.L. Dawson, and D.J. Perreault, "Experimental validation of a four-way outphasing combiner for microwave power amplification." IEEE Microwave and Wireless Components Letters, vol. 23, no. 1, pp. 28-30, Jan. 2013. link

26. P. Godoy, S. Chung, T.W. Barton, D.J. Perreault, and J.L. Dawson, "A 2.4-GHz, 27-dBm asymmetric multilevel outphasing power amplifier in 65-nm CMOS." IEEE Journal of Solid-State Circuits, vol. 47, no. 10, pp. 2372-2384, Oct. 2012. link

Conference

1. M. Mahsud, P. Pendekar, T. Barton, “A compact 6–12 GHz MMIC power amplifier,” IEEE Radio Wireless Week, San Antonio, TX, Jan. 2024 pp. 1–4. 

2. W. Sear, T. Barton, “A GaN gain enhancement PA with peak power combining,” International Microwave Symposium, San Diego, CA, June 2023, pp. 1–4.

3. A. Der, T. Barton, “Dual-band and frequency-reconfigurable power amplifiers,” Government Microcircuit Applications & Critical Technology Conference (GOMACTech), San Diego, CA, March 2023, pp. 1–2.

4. M. Pirrone, E. Dall’Anese, T. Barton, “Autonomous STAR front-end with intelligent interference cancellation,” Government Microcircuit Applications & Critical Technology Conference (GOMACTech), San Diego, CA, March 2023, pp. 1–2.

5. G. Giesbrecht, T. Barton, “Device figure of merit for load modulated power amplifier technology selection,” Government Microcircuit Applications & Critical Technology Conference (GOMACTech), San Diego, CA, March 2023, pp. 1–2.

6. W. Sear, N. Biesterfeld, S. Bayaskar, T. Barton, “An inter-stage filter network for distortion reduction in concurrent dual-band power amplifier operation,” Asia-Pacific Microwave Conference, Yokohama, Japan, Nov. 2022, pp. 1–4.

7. D. Donahue, T. Barton, “The w-plane as a graphical representation of sampler configuration in a sampled network reflectometer.” Automatic Radio Frequency Techniques Group (ARFTG), Denver, CO, June 2022, pp. 1–5.

8. M. Pirrone, E. Dall’Anese, T. Barton, “Zeroth-order optimization for varactor-tuned matching network.” IEEE MTT-S International Microwave Symposium, Denver, CO, June 2022, pp. 1–4.

9. D. Donahue, P. Zurek, Z. Popovic, T. Barton, “An X/Ku dual-band GaAs MMIC power amplifier with integrated load impedance sensing.” IEEE MTT-S International Microwave Symposium, Denver, CO, June 2022, pp. 1–4.

10. W. Sear, D. Donahue, M. Pirrone, T. Barton, “Bias and bias line effects on wideband RF power amplifier performance,” IEEE Wireless and Microwave Technology Conference (WAMICON), Clearwater Beach, FL, April 2022, pp. 1–4.

11. A. Romano, T. Sonnenberg, S. Verploegh, T. Barton, Z. Popovic, “A W-band GaN MMIC continuous 90-degree reflective phase shifter,” IEEE Wireless and Microwave Technology Conference (WAMICON), Clearwater Beach, FL, April 2022, pp. 1–4.

12. A. Der, W. Sear, T. Barton, “Effect of switch figure of merit on frequency-reconfigurable power amplifier performance,” IEEE European Microwave Integrated Circuits Conference, London, UK, April 2022, pp. 1–4.

13. N. Tawa, P. de Falco, O. Kazuya, T. Barton, T. Kaneko, “A 3.5-GHz 350-W Black-Box Design Doherty Amplifier without using Transistor Models,” IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS), Online conference, Dec. 2021, pp. 1–4.

14. A. Der, W. Sear, Z. Popovic, G. Lasser, T. Barton, “A S-C / K-band reconfigurable GaAs MMIC power amplifier for 5G applications,” IEEE MTT-S International Microwave Symposium, Atlanta, GA, June 2021,pp. 1–4.

15. D. Donahue, T. Barton, “Power amplifier load impedance sensing for phased arrays,” Government Microcircuit Applications & Critical Technology Conference (GOMACTech), online, Mar. 2021, pp. 1–4.

16. D. Martin, G. Lasser, Z. Popovic, T. Barton, “An 18–38 GHz GaAs MMIC Reconfigurable Outphasing Power Amplifier,” Government Microcircuit Applications & Critical Technology Conference (GOMACTech), online, Mar. 2021, pp. 1–4.

17. K. Vivien, P. de Falco, P. Pierre-Charles-Felix, O. Venard, G. Baudoin, T. Barton, “Load modulated balanced amplifier designed for AM-PM linearity,” European Microwave Conference, Jan. 2021, pp. 1–4.

18. S. Bayaskar, P. de Falco, T. Barton, “A 2.4/3.5 GHz dual-band power amplifier with filter-based bias network and SRFT matching networks,” European Microwave Conference, Jan. 2021, pp. 1–4.

19. D. Donahue, T. Barton, “Multi-port reflectometry applied to a varactor-tuned sampled-line,” Automatic Radio Frequency Techniques Group (ARFTG), online, August 2020, pp. 1–4.

20. E. Kwiatkowski, C. Rodenbeck, T. Barton, Z. Popovic “Power-combined rectenna array for X-band wireless power transfer,” International Microwave Symposium, online, August 2020, pp. 1–4.

21. C. Cooke, K. Leong, K. Nguyen, A. Escorcia, X.B. Mei, J. Arroyo, T. Barton, C. Du Toit, G. De Amici, D. Wu, W. Deal “A 680 GHz direct detection dual-channel polarimetric receiver,” International Microwave Symposium, online, August 2020, pp. 1–4.

22. P. de Falco, W. Hallberg, T. Barton, “Load modulated RF amplifiers for wireless communications,” IEEE Texas Symposium on Microwave and Wireless Circuits and Systems, online, May 2020, pp. 1–6.

23. D. Donahue, M. Roberg, Z. Popovic, T. Barton, “An X-band sampled-line impedance sensor in 250-nm GaAs,” IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR), San Antonio, TX, Jan. 2020, pp. 1–3, doi: 10.1109/PAWR46754.2020.9035993.

24. W. Sear, A. Der, T. Barton, “Amplifier input matching for NF–gain–linearity compromise,” IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR), San Antonio, TX, Jan. 2020, pp. 1–3, doi: 10.1109/PAWR46754.2020.9035994.

25. D. Martin, M. Roberg, Z. Popovic, T. Barton, “A 6–12 GHz reconfigurable transformer-based outphasing combiner in 250-nm GaAs,” IEEE BiCMOS and compound semiconductor integrated circuits and technology symposium (BCICTS), Nashville, TN, Oct. 2019, pp. 1–3

26. A. Duh, M. Duffy, W. Hallberg, M. Pinto, T. Barton, Z. Popovic, “A 10.8-GHz GaN MMIC load modulated amplifier,” IEEE European Microwave Conference, Paris, France, Sept. 2019, pp. 1–4

27. J. Estrada, E. Kwiatkowski, A. Lopez-Yela, M. Borgonos-Garcia, D. Sagovia-Vargas, T. Barton, Z. Popovic, “An octave bandwidth RF harvesting tee-shirt,” IEEE Wireless Power Week, London, UK, June 2019, pp. 1–4.

28. D. Donahue, P. de Falco, T. Barton, ‘Impedance sensing integrated directly into a power amplifier output matching network,” IEEE MTT-S International Microwave Symposium, Boston, MA, June 2019, pp. 983–986.

29. W. Sear, T. Barton, “A baseband feedback approach to linearization of a UHF power amplifier,” IEEE MTT-S International Microwave Symposium, Boston, MA, June 2019, pp. 75–78.

30. C. Cooke, A. Escorcia, X. Bing Mei, T. Barton, M. Vega, D. Wu, W. Deal, “A 220 GHz dual channel LNA front-end for a direct detection polarimetric receiver,” IEEE MTT-S International Microwave Symposium, Boston, MA, June 2019, pp. 508–511.

31. B. Baker, T. Quach, W. Gouty, A. Mattamana, T. Barton, “Frequency-reconfigurable power amplifier using active matching for L, S, and C band,” Government Microcircuit Applications & Critical Technology Conference (GOMACTech), Alberquerque, NM, March 2019, pp. 1–2.

32. D. Donahue, T. Barton, “A 2-GHz sampled line impedance sensor for power amplifier applications with varying load impedance,” IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR), Orlando, FL, Jan. 2019, pp. 1–3.

33. D. Fishler, T. Cappello, W. Hallberg, T. Barton, Z. Popovic, "A study of supply modulation applied to a Doherty power amplifier," IEEE European Microwave IC Symposium (EuMIC), Sept. 2018.

34. D. Martin, T. Cappello, T. Barton, "An X-band RF-input outphasing power amplifier," IEEE International Microwave Symposium (IMS), June 2018.

35. T. Cappello, P. Pednekar, C. Florian, Z. Popovic, T. Barton, "Supply modulation of a broadband load modulated balanced amplifier," IEEE International Microwave Symposium (IMS), June 2018.

36. D. Martin, T. Barton, "X band MMIC design for RF-input outphasing," Government Microcircuit Applications and Critical Technology Conference (GOMACTech), March 2018.

37. M. Duffy, G. Lasser, T. Barton, Z. Popovic, "Broadband supply modulation for RF transmitter efficiency enhancement," Government Microcircuit Applications and Critical Technology Conference (GOMACTech), March 2018.

38. M. LaRue, T. Barton, M. Belz, S. Rashid, B. Dupaix T. James, W. Gouty, P. Watson, T. Quach, W. Khalil, "A multifunction transmitter based on a fully-difital CMOS/GaN architecture in DAHI technology," Government Microcircuit Applications and Critical Technology Conference (GOMACTech), March 2018.

39. A. Duh, S. Rahimizadeh, T. Barton, Z. Popovic, "A 3.5/5.9-GHz dual-band output matching network for an efficiency-optimized multiband power amplifier," IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR), Jan. 2018.

40. M. LaRue, B. Dupaix, S. Rashid, T. Barton, S. Dooley, P. Watson, T. Quach, and W. Khalil, "A fully-integrated S/C band transmitter in 45nm CMOS/0.2 um GaN heterogeneous technology," IEEE Compound Semiconductor IC Symposium (CSICS), Oct. 2017. Won Best Overall Paper

41. P. Brehm and T. Barton, "Modeling and analysis of the frequency dependence of class-E outphasing," IEEE International Conference on Advanced Technologies, Systems, and Services in Telecommunications,, Oct. 2017.

42. T. Quach, P. Watson, B. Dupaix, T. Barton, M. LaRue, W. Gouty, W. Khalil, "Wideband high-efficiency digital power amplifier in GaN," European Microwave Integrated Circuits Conference, Oct. 2017.

43. H. Nguyen, T.W. Barton, "Linearity Characterization of RF-input Chireix outphasing power amplifier," 32nd International Union of Radio Science (URSI) General Assembly and Scientific Symposium, Montreal, Canada, August 2017.

44. P. Pednekar, T.W. Barton, "RF-input load modulated balanced amplifier." IEEE MTT-S International Microwave Symposium 2017, Honolulu, HI, June 2017.

45. T. Capello, C. Florian, T. Barton, M. Litchfield, Z. Popovic, "Multi-level supply-modulated Chireix outphasing for LTE signals." IEEE MTT-S International Microwave Symposium 2017, Honolulu, HI, June 2017.

46. M. Duffy, J. Vance, G. Lasser, M. Olavsbraaten, T. Barton, Z. Popovic, "Bandwidth-reduced supply modulation of a high-efficiency X-band GaN MMIC PA for multiple wideband signals." IEEE MTT-S International Microwave Symposium 2017, Honolulu, HI, June 2017.

47. P. Roblin, T.W. Barton, H-C. Chen, C. Liang, W. Sear, "Design of a 4-way Chireix amplifier using a nonlinear embedding device model." IEEE Wireless and Microwave Technology Conference (WAMICON), April 2017.

48. B. Baker, T.W. Barton, C. Thompson, "Doherty power amplifier design methodology for HF applications with MOSFET active devices." IEEE Texas Symposium on Wireless and Microwave and Circuits and Systems, Waco, TX, March 2017.

49. U. Awais, T.W. Barton, "High PSR low drop-out regulator with isolated replica feedback ripple cancellation technique." IEEE Dallas Circuits and Systems Conference, Arlington, TX, Oct. 2016.

50. (Invited paper) S. Hary, T.W. Barton, J. Ebel, "Reconfigurable RF components for multifunction RF systems." IEEE Compound Semiconductor IC Symposium, Austin, TX, Oct. 2016.

51. P. Pednekar, T.W. Barton, "Dual-band Chireix combining network." IEEE MTT-S Texas Symposium on Microwave and Wireless Circuits and Systems, March 2016.
    S. Nelson, C. Ison, S. Cooper, D. Grecu, T. Barton, L. Baier, K. O, "Efficiency, Linear RF-Input Outphasing mm-wave Power Amplifiers." Government Microcircuit Applications and Critical Technology Conference (GOMACTech), March 2016.

52. N. Faraji, T.W. Barton, "An RF-Input Chireix Outphasing Power Amplifier." IEEE Radio and Wireless Symposium, Jan 2016.

53. P.H. Pednekar, L. Deng, T.W. Barton, "Experimental characterization and control of a four-way non-isolating power combiner." IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications (PAWR), Jan. 2016. Received first place in student paper competition.

54. (Invited paper) T. W. Barton, "Efficiency first: Outphasing architectures for power amplification of high-PAPR signals." IEEE Compound Semiconductor IC Symposium, Oct. 2015.

55. T.W. Barton and D.J. Perreault, "An RF-input outphasing power amplifier with RF signal decomposition network." IEEE International Microwave Symposium, May 2015.

56. J.R. McFarland and T.W. Barton, "Bandwidth of Transmission-Line Resistance Compression Networks for Microwave Outphasing Transmitters." IEEE MTT-S Texas Symposium on Wireless and Microwave Circuits and Systems, April 2015.

57. T.W. Barton, J.M. Gordonson, and D.J. Perreault, "Transmission-line resistance compression networks for GHz rectifiers." IEEE International Microwave Symposium, pp. 1-4, June 2014.

58. T.W. Barton, A.S. Jurkov, and D.J. Perreault, "Transmission-line-based multi-way lossless power combining and outphasing system." IEEE International Microwave Symposium, pp. 1-4, June 2014.

59. T.W. Barton, J.L. Dawson, and D.J. Perreault, "Four-way lossless outphasing and power combining with hybrid microstrip/discrete combiner for microwave power amplification." IEEE International Microwave Symposium, pp. 1-4, June 2013.

60. T.W. Barton, S. Chung, P.A. Godoy, and J.L. Dawson, "A 12-bit resolution, 200-MSample/second phase modulator for a 2.5-GHz carrier with discrete carrier pre-rotation in 65-nm CMOS." IEEE Radio Frequency Integrated Circuits Symposium, pp. 1-4, June 2011.

61. P.A. Godoy, S. Chung, T.W. Barton, D.J. Perreault, and J.L. Dawson, "A highly efficient 1.95-GHz, 18-W asymmetric multilevel outphasing transmitter for wideband applications" IEEE International Microwave Symposium, pp. 1-4, June 2011. 

62. P.A. Godoy, S. Chung, T.W. Barton, D.J. Perreault, and J.L. Dawson, "A 2.5-GHz asymmetric multilevel outphasing power amplifier in 65-nm CMOS" IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications, pp. 57-60, Jan. 2011. Received second place in student paper competition.

63. S. Chung, P.A. Godoy, T.W. Barton, J.L. Dawson, and D.J. Perreault, "Asymmetric multilevel outphasing transmitter using class-E PAs with discrete pulse width modulation." IEEE International Microwave Symposium, pp. 264-267, May 2010. 

64. S. Chung, P.A Godoy, T.W. Barton, E.W. Huang, D.J. Perreault, and J.L. Dawson, "Asymmetric multilevel outphasing architecture for multi-standard transmitters." IEEE Radio Frequency Integrated Circuits Symposium, pp. 237-240, June 2009. 

Patents

1. T.W. Barton, W. Sear, “Load Modulating Loop Combiner for Linear Power Amplifier,” World Intellectual Property Organization Publication No. WO 2023/164529 A2.

2. T.W. Barton,W. Sear, “Out-of-band compensation of electronic active device,” U.S. Patent No. US20210218423A1, August 2022.

3. T.W. Barton, P.H. Pednekar, “RF-input load modulated balanced amplifier,” U.S. Patent No. 10,404,224 B2, Sept. 3, 2019.

4. D.J. Perreault and T.W. Barton, "RF-input outphasing power amplifier," U.S. Patent No. 9,912,303, June 3, 2018.

5. D.J. Perreault, A.S. Jurkov, and T.W. Barton, "Multiway lossless power combining and outphasing incorporating transmission lines." U.S. Patent No. 9,141,832, September 22, 2015.

Other Topics

Autonomous Robotic Sailboats

• T.W. Barton and M. Alvira, "A Discrete-component 2D-array wind sensor without moving parts for a robotic sailboat." Proceedings of the 5th International Robotic Sailing Conference, Sept. 2012. pdf link

• M. Alvira, T.W. Barton, "Small and inexpensive single-board computer for autonomous sailboat control." Proceedings of the 5th International Robotic Sailing Conference, Sept. 2012. pdf link

Education

• T.W. Barton and M. Alvira, "An advanced level radio-frequency circuit course with laboratory and design exercises that emphasize complete system performance." IEEE Frontiers in Education, pp. S4G-1--S4G-6, Oct. 2011. pdf link

Control Theory

• T.W. Barton, "Stabilizing the dual inverted pendulum." IFAC Symposium on Advances in Control Education, Oct. 2009. pdf link

• K. Lundberg, T. Barton, "History of inverted-pendulum systems." IFAC Symposium on Advances in Control Education, Oct. 2009. pdf link

• T.W. Barton, "Stabilizing the Dual Inverted Pendulum: A Practical Approach." M.Eng. Thesis, Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, February 2006. Received David Adler Memorial MEng Thesis Prize, 2nd place. pdf link