Publications:

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Book Chapters

· R. Ramadoss and R. Dean, “MEMS Characterization and Testing”, Chapter 14 in L. T. Wang, C. Stroud, and N. Touba (Eds.), System on Chip Test Architectures: Nanometer Design for Testability, Elsevier, Burlington, MA (To appear in Spring 2007).

· R. Ramadoss and K. C. Gupta, “RF MEMS Devices and Circuit applications,” Chapter 14 in I.J. Bahl and P. Bhartia (Eds.), Microwave Solid State Circuit Design, John Wiley & Sons, New York, pp. 771-850, Second Edition, April 2003.

Refereed Journal Publications

· A. Sundaram, M. Madella, R. Ramadoss, and L. M. Feldner, “A MEMS-based Electronically Steerable Antenna Array Fabricated using PCB Technology,” IEEE/ASME Journal of Microelectromechanical Systems (Submitted Jan 07).

· M. Madella and R. Ramadoss, “MEMS-Based Tunable Coplanar Patch Antenna Fabricated Using PCB Processing Techniques,” Journal of Micromechanics and Microengineering (Manuscript ID: JMM/240901/PAP/162159, Accepted Feb. 19, 07, In Press).

· A. Sundaram, M. Madella, and R. Ramadoss, “Koch Fractal Folded Slot Antenna Characteristics,” IEEE Antennas and Wireless Propagation Letters (Manuscript ID: AWPL 0041-2007, Accepted Feb. 7, 07, In Press).

· L. Almeida, R. Ramadoss, R. Jackson, K. Ishikawa, and Q. Yu, and “Laterally actuated multi-contact MEMS Relay fabricated using MetalMUMPS process: Experimental Characterization and Multiscale Contact Modeling,” Journal of Microlithography, Microfabrication, and Microsystems (JM3) (Accepted Feb. 07, In Press)

· R. Ramadoss, S. Lee, Y.C. Lee, V.M. Bright, and K.C. Gupta, “RF MEMS Series Capacitive Switch Fabricated Using Printed Circuit Processing Techniques” International Journal of RF and Microwave Computer-Aided Engineering (Accepted Aug. 06, To appear in July 2007 Issue)

· R. Jackson and R. Ramadoss, “A MEMS-based electrostatically tunable circular microstrip patch antenna,” Journal of Micromechanics and Microengineering (Institute of Physics Publishing), Vol. 17, no. 1, Jan. 2007, pp. 1-8.

· R. Ramadoss, S. Lee, Y.C. Lee, V.M. Bright, and K.C. Gupta, “RF MEMS Capacitive Switches Fabricated Using Printed Circuit Processing Techniques” IEEE/ASME Journal of Microelectromechanical Systems, Vol. 15, no. 6, Dec. 2006, pp. 1595-1604.

· J. N. Palasagaram and R. Ramadoss, “MEMS Capacitive Pressure Sensor Fabricated using Printed Circuit Processing Techniques,” IEEE Sensors Journal, Vol. 6, No. 6, Dec. 2006, pp. 1374-1375.

· R. V. Goteti, R. Jackson, and R. Ramadoss, “MEMS Based Electrostatically Tunable Microstrip Patch Antenna fabricated Using Printed Circuit Processing Techniques,” IEEE Antennas and Wireless Propagation Letters, vol. 5, 2006, pp. 228-230.

· L. Almeida, R. Ramadoss, R. Jackson, K. Ishikawa, and Q. Yu, “Study of electrical contact resistance of multi-contact MEMS relay fabricated using MetalMUMPs process,” Journal of Micromechanics and Microengineering, Vol. 16, July 2006, pp. 1189–1194.

· B. R. Holland, R. Ramadoss, S. Pandey, and P. Agrawal, “Tunable Coplanar Patch Antenna using a Varactor,” IEE Electronics Letters, vol. 42, no. 6, Mar. 2006, pp. 319-320.

· R. Ramadoss, A. Sundaram, L. M. Feldner, “RF MEMS Phase Shifters based on PCB MEMS Technology,” IEE Electronics Letters, vol. 41, no. 11, May 2005, pp. 654-656.

· S. Lee, R. Ramadoss, K. C. Gupta, Y. C. Lee, and V. M. Bright, “Reliability testing of flexible circuit-based RF MEMS capacitive switches,” Journal of Microelectronics Reliability, vol. 44, no. 2, February 2004, pp. 245-250.

· R. Ramadoss, S. Lee, K. C. Gupta, Y. C. Lee, and V. M. Bright, “Fabrication, assembly, and Testing of RF MEMS capacitive switches using Flexible Printed circuit Technology,” IEEE Transactions on Advanced Packaging (Special Section on MEMS/NEMS Packaging), vol. 26, no. 3, August 2003, pp. 248-254.

· K. C. Gupta, R. Ramadoss, and H. Zhang, “RF and Microwave Network Characterization,” IEEE Transactions on Microwave Theory and Techniques, vol. 51, no. 3, March 2003, pp. 1326-1329.

· K. C. Gupta, R. Ramadoss, and H. Zhang, “Concept maps and modules for CD-ROM/Web-based RF and Microwave Education,” IEEE Transactions on Microwave Theory and Techniques, vol. 51, no. 3, March 2003, pp. 1306-1311.

· S. Salivahanan, R. Ramadoss, V. Abhaikumar, S. Karthikeyan, and S. Raju, “Artificial Neural Network Models for Coplanar Stripline Synthesis”, Institution of Electronics and Telecommunications Engineers (IETE) Journal, Vol. 43, no.1, Jan.-Mar. 2002, pp. 27-31.

· R. Ramadoss, S. Karthikeyan, S. Raju, V. Mohan, V. Abhaikumar, and D. Hill, “A modified approach to the characterization of EM environments irradiated by unknown sources,” Institution of Electronics and Telecommunications Engineers (IETE ) Technical Review, Vol. 18, no. 5, Sept.-Oct. 2001, pp. 433-440.

· S. Salivahnan, R. Ramadoss, S. Karthikeyan, S. Raju, and V. Abhaikumar, “CAD models for coplanar waveguide synthesis using artificial neural network,” Institution of Electronics and Telecommunications Engineers (IETE) Technical Review (Special Issue on microwave communications systems), Vol. 18, nos. 2&3, March-June 2001, pp. 123-129.

Refereed Conference Publications

· M. Madhurima and R. Ramadoss, “A Tunable Coplanar Patch Antenna using a MEMS varactor,” 2007 Mid-South Area Engineering and Sciences Conference (MAESC), The University of Mississippi, Mississippi, Oxford, May 17-18, 2007.

· John E. Rogers, Ramesh Ramadoss, Phillip M. Ozmun, and Robert N. Dean, “MEMS Accelerometer Fabricated Using Printed Circuit Processing Techniques,” 2007 IEEE International Symposium on Industrial Electronics (ISIE), Vigo, Spain, June 4-7, 2007.

· Madhurima Maddela and Ramesh Ramadoss, “PCB MEMS Based Tunable Coplanar Patch Antenna,” 2007 IEEE International Symposium on Industrial Electronics (ISIE), Vigo, Spain, June 4-7, 2007.

· R. Jackson, L. Almeida, and R. Ramadoss, “Predicting Multiscale contact resistance modeling of ohmic MEMS relays,” Proceedings of IJTC2006 STLE/ASME International Joint Tribology Conference, Oct. 22-25, 2006, San Antonio, TX, USA.

· R. Jackson, and R. Ramadoss, “MEMS Based Electrostatically Tunable Circular Microstrip Patch Antenna,” 8th IEEE Wireless and Microwave Technology Conference (WAMICON 2005), Clearwater, FL, Dec. 4-5, 2006.

· R. Ramadoss, “MEMS Curriculum at Auburn University’s Microelectronics Center,” Hilton Head 2006: A Solid State Sensors, Actuators and Microsystems Workshop, MEMS Education Poster Digest, pp. 30-33, Hilton Head Island, SC, June 4-8, 2006.

· L. Almeida , K. Ishikawa , Q. Yu, R. Jackson , and R. Ramadoss, “Experimental and Theoretical Investigation of Contact Resistance and Reliability of Lateral Contact type Ohmic MEMS Relays,” (Invited paper) Proceedings of the SPIE & Photonics West MOEMS-MEMS Micro & Nanofabrication Symposium, San Jose, CA, January 21-26, 2006, Volume 6111, pp. F1–F15.

· A. Sundaram, R. Ramadoss and L. M. Feldner, “Electronically Steerable Antenna Array using PCB-based MEMS Phase Shifters,” Proceedings of the 31st Annual Conference of the IEEE Industrial Electronics Society (IECON’ 05), Raleigh, NC, Nov. 8, 05, pp. 2335-2339.

· J. N. Palasagaram and R. Ramadoss, “MEMS Capacitive Pressure Sensor Array fabricated Using Printed Circuit Processing Techniques,” Proceedings of the 31st Annual Conference of the IEEE Industrial Electronics Society (IECON’ 05), Raleigh, NC, Nov. 8, 05, pp. 2351 - 2356.

· J. N. Palasagaram and R. Ramadoss, “Liquid Crystal Polymer Based MEMS Capacitive Pressure Sensor,” Proceedings of the SPIE Defense and Security Symposium, 28 March – 1 April 2005, Orlando, FL, Spaceborne Sensors II, Vol. 5798, pp. 190-197.

· R. V. Goteti and R. Ramadoss, “MEMS-Based Electrostatically Tunable Microstrip Patch Antenna Using Flexible Polyimide Film,” Proceedings of the SPIE Defense and Security Symposium, 28 March – 1 April 2005, Orlando, FL, Spaceborne Sensors II, Vol. 5798, pp. 198-206.

· R. Ramadoss, S. Lee, Y. C. Lee, V. M. Bright, and K. C. Gupta, “Flexible Polyimide Film based High Isolation RF MEMS Switches fabricated using printed circuit processing techniques,” 18th IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2005), Jan. 30 – Feb. 3, 2005, Miami, FL, pp. 179-182.

· A. Sundaram and R. Ramadoss, “X-band RF MEMS Phase Shifters suitable for Printed Phased Array Antennas,” IEEE Antennas and Propagation Symposium Digest, June 2004, Monterey, CA, pp. 3972-3975.

· S. Pandey and R. Ramadoss, “Coplanar Patch Antenna fed at the Non-Radiating Edge,” IEEE Antennas and Propagation Symposium Digest, June 2004, Monterey, CA, pp. 3397-3400.

· R. Ramadoss, S. Lee, K. C. Gupta, V.M. Bright, and Y.C. Lee, “RF MEMS capacitive switches based on flexible printed circuit technology: state-of-the-art,” National Radio Science Meeting, Boulder, CO, Jan. 5-8, 2004.

· R. Ramadoss, S. Lee, K.C. Gupta, Y.C. Lee, and V.M. Bright, “RF MEMS capacitive switches for integration with printed circuits and antennas,” IEEE Antennas and Propagation Symposium, Columbus, OH, June 22-27, 2003, Vol. 1, pp. 395-398.

· K. C. Gupta and R. Ramadoss, “Concept Maps for Microwave Education,” 2004 Asia-Pacific Microwave Conference, December 15-18, 2004, New Delhi, India.

· A. Zaman, R. Ramadoss, S. Lee, K. C. Gupta, R. Q. Lee, and Y. C. Lee, “A novel MEMS Reconfigurable Leaky Wave Antenna,” IEEE Antennas and Propagation Symposium, Columbus, OH, June 22-27, 2003

· S. Lee, R. Ramadoss, V.M. Bright, K.C. Gupta, Y.C. Lee, “Reliability testing of flexible circuit-based RF MEMS switches,” Proc. of the 35th International Symposium on Microelectronics (IMAPS 2002), Denver, CO, September 4-6, 2002, pp. 99-104.

· R. Ramadoss, S. Lee, V.M. Bright, Y. C. Lee, and K. C. Gupta, “Polyimide film based RF MEMS capacitive switches,” IEEE International Microwave Symposium Digest, Seattle, WA, June 2-7, 2002, pp. 1233-1236.

· C. Wang, R. Ramadoss, S. Lee, K. C. Gupta, V. M. Bright, and Y. C. Lee, “Flexible- circuit based RF MEMS switches,” Proc. of 2001 ASME International Mechanical Engineering Congress and Exposition, Nov. 11-16, 2001, New York, NY.

· K. C. Gupta, J. Li, R. Ramadoss, C. Wang, Y. C. Lee and V. M. Bright, “MEMS-based Reconfigurable Slot Antennas,” Presented at the Workshop on affordability and Cost Reduction for Radar Systems, Alabama, April 5 & 6, 2000.

· K. C. Gupta, J. Li, R. Ramadoss, C. Wang, Y. C. Lee and V. M. Bright, “Design of Frequency-Reconfigurable Rectangular Slot Ring Antennas,” IEEE International Antennas and Propagation symposium Digest, Salt Lake City, UT, July 16-21, 2000,vol. 1, p. 326.

· S. Salivahanan, R. Ramadoss, V. Abhaikumar and S. Raju, “CAD based synthesis models for a class of microwave integrated circuit structure using Artificial Neural Network,” in Proc. of International conference APT-2000, Vellore, India, pp. 101-105, December 2000.

· R. Ramadoss, S. Raju, S. R. Ramasamy, V. Abhaikumar and V. Mohan, “Electromagnetic environment characterization,” in proc. of National Symposium on Antennas and Propagation (APSYM), Cochin, India, Dec. 1998, pp. 67-74.

· S. Salivahanan, R. Ramadoss, V. Abhaikumar and S. Raju, “Artificial Neural Network Model for Coplanar Strip Line Synthesis,” in proc. of National Symposium on Antennas and Propagation (APSYM-2000), Cochin, India, Dec. 2000, pp. 130-134.

· S. Salivahanan, R. Ramadoss, V. Abhaikumar and S. Raju, “Quasi Static Characteristics of Valley Coplanar waveguide in anisotropic media,” in proc. of National Symposium on Antennas and Propagation (APSYM-2000), Cochin, India, Dec. 2000, pp. 121-126.

· S. Salivahanan, R. Ramadoss, V. Abhaikumar and S. Raju, “Effects of inserted dielectric layer on the layer profile in the quasi-static characteristics of an elevated coplanar waveguide structures,” in proc. of National Symposium on Antennas and Propagation (APSYM-98), Cochin, India, Dec. 1998, pp. 294-297.

· S. Salivahanan, R. Ramadoss, V. Abhaikumar and S. Raju, “Quasi-static analysis of a class of valley coplanar waveguide,” in proc. of National Symposium on Antennas and Propagation (APSYM), Cochin, India, Dec. 1998, pp. 290-293.

· S. Salivahanan, R. Ramadoss, V. Abhaikumar and S. Raju, “Numerical modeling of trapezoidal elevated coplanar waveguide with finite substrate thickness,” in proc. of National Systems Conference (NSC), Calicut, India, Dec 1998, pp.445-448.R. Jackson, L. Almeida, and R. Ramadoss, “Multiscale Contact Resistance Modeling of Ohmic MEMS Relays including Scale Dependant Properties, Dry and Meniscus Adhesion“ Tribology Letters (submitted July 06)

Workshop Presentations

· R. Ramadoss, “Kapton-film based RF MEMS Switches,” Advanced Technology Workshop on Packaging of MEMS and Related Micro Integrated/Nano Systems, 35th International Symposium on Microelectronics (IMAPS 2002), Denver, Colorado, Sept. 7, 2002.

· K. C. Gupta, R. Ramadoss, and H. Zhang, “Concept Modules for Web Based RF and Microwave Education”, 2001 IEEE International Microwave Symposium Workshop on “Web-based RF and Microwave Education”, Phoenix, Arizona, May 20, 2001.

· R. Ramadoss, “Flexible Polymer film based MEMS Devices for Large Area Applications,” DARPA/MTO Polymer MEMS Workshop, (Invited Talk), Booz Allen Hamilton, Arlington, VA, Mar. 2 – Mar. 3, 2005.

· R. Ramadoss, “Tools for Web-Based delivery of RF and Microwave Education,” RF and Microwave Education Forum, 2005 IEEE International Microwave Symposium, Long Beach, CA, June 14, 2005.