Faculty Profiles

Bhalla, N., Bucklin, C. J., Devlin, M. B., Lopez, O. S., & Stephan, K. (n.d.). Engineering Fit: Developing a Tool to Identify Skills-Job Mismatch Among Engineering Students. https://doi.org/doi:10.25334/ZQY1-W289

Stephan, K., Sonnenfeld, R., DeGroot, A., Cortez, N., & Toledo-Gonzalez, R. (2024). First measurements of Wind-Turbine Perturbations of Fair-Weather Electric Fields. Journal of Atmospheric and Solar-Terrestrial Physics, 261. https://doi.org/https://doi.org/10.1016/j.jastp.2024.106298

Stephan, K. (2024). Window damage as evidence for energy and power content of ball lightning. Journal of Atmospheric and Solar-Terrestrial Physics, 261. https://doi.org/https://doi.org/10.1016/j.jastp.2024.106300

Stephan, K. (2023). An economical smoke chamber and light-sheet microscope system for experiments in fluid dynamics and electrostatics. American Journal of Physics, 91(4), 316–323. https://doi.org/https://doi.org/10.1119/5.0122766.

Stephan, K. (2023). Modeling the Neuruppin ball lightning incident. Journal of Atmospheric and Solar-Terrestrial Physics, 244. https://doi.org/https://doi.org/10.1016/j.jastp.2023

Shmatov, M., & Stephan, K. (2022). Questions regarding alleged laboratory creation of ball lightning.

Stephan, K., Sonnenfeld, R., & Keul, A. G. (2022). First comparisons of ball-lightning report website data with lightning-location-network data.

Stephan, K., & Shmatov, M. L. (2021). Hazards to aircraft crews, passengers, and equipment from thunderstorm-generated X-rays and gamma-rays. Radiation, 1(3), 162–173. Retrieved from https://www.mdpi.com/2673-592X/1/3/15

Cameron, R. P., Löffler, W., & Stephan, K. D. (2021). Theoretical proposal for the experimental realisation of a monochromatic electromagnetic knot. Journal of Optics (IOP), 23, 064006. https://doi.org/https://doi.org/10.1088/2040-8986/abfc33

Stephan, K., & Klima, G. (2021). Artificial intelligence and its natural limits. AI & Society, 36(1), 9–18. https://doi.org/https://doi.org/10.1007/s00146-020-00995-z

Sonnenfeld, R., Stephan, K. D., Keul, A., Edelman, I., & Jimenez, S. (2020). Applying modern meteorological tools to the study of ball lightning (Kugelblitz). https://doi.org/https://doi.org/10.1002/essoar.10505247.1

Stephan, K. D., De La Garza, A. E., & Hua, Y. (2020). Dispersion and Attenuation Characteristics of Steady-State Microwave Plasma Waveguide. AIP Advances, 10. https://doi.org/https://doi.org/10.1063/1.5124737

Shmatov, M. L., & Stephan, K. D. (2019). Advances in Ball Lightning Research. Journal of Atmospheric and Solar-Terrestrial Physics, 195, 105115. https://doi.org/https://doi.org/10.1016/j.jastp.2019.105115

Stephan, K. D. (2018, August). Worrying about worrying about AI. Product Design & Development, 17.

Stephan, K. D. (2018, June). Don’t worry about a trade war. Product Design & Development, 17.

Stephan, K. D. (2018, January). Imagine there’s no patents. Product Design & Development, 27.

Stephan, K. D., & Hernandez-Guerrero, J. M. (2017). Electrostatic Pendulum Showing Corona-Induced Negative Drag Coefficient. Journal of Applied Physics, 122, 243302.

Stephan, K. D. (2017, November). The key to success may not be what you think, 27.

Stephan, K. D. (2017, October). Watches made in Detroit? Product Design & Development, 31.

Stephan, K. D. (2017, September). Is technology getting too complicated?, 27.

Stephan, K. D. (2017, July). Manufacturing from 50,000 feet. Product Design & Development, 27.

Stephan, K. D. (2017, May). Engineering and a just economy. Product Design & Development, 27.

Stephan, K. D. (2017, April). Can makers replace manufacturers? Product Design & Development, 27.

Stephan, K. D. (2017, March). Getting real about climate change. Product Design & Development, 27.

Stephan, K. D. (2017, February). Is now the time for a Federal R&D bank? Product Design & Development, 26.

Stephan, K. (2016). Health of the Nation. Touchstone, 29, 32–37.

Stephan, K. (2016). Counterfeit electronics:  coming to a store near you. IEEE Consumer Electronics Magazine, 5, 112–113.

Stephan, K. (2016). IEEE Technology & Society Magazine.

Stephan, K., J. C. McLean, Robert., DeLeon, Gian., & Melnikov, Vadim. (2016). Effect of feed-gas humidity on nitrogent atmospheric-pressure plasma jet for biological applications. Technology and Health Care, 24, 943–948.

Stephan, K. D. (2016, November). Do we need a whole new engineer? Product Design & Development, 27.

Stephan, K., McLean, R. J. C., DeLeon, G., & Melnikov, V. (2016). Effect of feed-gas humidity on nitrogen atmospheric-pressure plasma jet for biological applications. Technology and Health Care, 24(6), 943–948. https://doi.org/10.3233/THC-161226

Stephan, K. D., Krajcik, R., & Martin, R. J. (2016). Fluorescence caused by ionizing radiation from ball lightning:  observation and quantitative analysis. Journal of Atmospheric and Solar-Terrestrial Physics, 148, 32–38.

Stephan, K. D. (2016, October). Sustainability and the Engineer. Product Design & Development, 26.

Stephan, K. (2016). GM ignition switch recall:  too little too late? IEEE Technology & Society Magazine, 35, 34–35.

Stephan, K. (2016). Toyota:  not so fast, guys. IEEE Technology & Society Magazine, 35, 36–37.

Stephan, K. D. (2016, May). Has America Finished Growing?, 31.

Stephan, K. (2015). Analog and Mixed-Signal Electronics. New York: Wiley.

Stephan, K. (2015). What’s your engineering ethics IQ? Chemical Engineering, 122, 46–49.

Stephan, K., & Sheleg, G. (2015). Directional propagation of resistive-barrier discharge above water. IEEE Trans. on Plasma Science, 43, 501–505.

Stephan, K. (2014). IEEE Technology & Society Magazine.

Stephan, K., Dumas, S., Komala-Noor, L., & McMinn, J. (2013). Initiation, growth and plasma characteristics of “Gatchina” water plasmoids. Plasma Sources Science and Technology, 22.

Stephan, K. (2012). Authority in engineering education. American Journal of Engineering Education, 3, 123–136.

Stephan, K. (2012). Are there experts in engineering ethics? IEEE Potentials, 31, 17–18 and 27.

Stephan, K. (2012). [Review of Lessons amid the rubble:  an introduction to post-disaster engineering and ethics, 2010, by S. K. A. Pfatteicher]. IEEE Technology & Society Magazine.

Stephan, K. (2012). Implications of the visual appearance of ball lightning for luminosity mechanisms. Journal of Atmospheric and Solar-Terrestrial Physics, 89, 120–131. https://doi.org/doi.org/10.1016/j.jastp.2012.09.001

Stephan, K., Michael, K., Michael, M. G., Jacob, L., & Anesta, E. P. (2012). Social implications of technology:  the past, the present, and the future. Proceedings of the IEEE, 100, 1752–1781.

Stephan, K. (2011). [Review of Society, ethics, and technology, 4th edition, 2009, by M. E. Winston & R. D. Edelbach]. IEEE Technology & Society Magazine.

Stephan, K., Ghimire, S., Smith, R., Komala-Noor, L., & Massey, N. (2011). Transverse stabilization of atmospheric-pressure DC glow plasma in air with resistive barrier. IEEE Trans. Plasma Science, 39, 1919–1926.

Stephan, K., Klier, J., Komala-Noor, L., & Bunnell, J. (2011). Quantitative intensity and location measurements of an intense long-duration luminous object near Marfa, Texas. Journal of Atmospheric and Solar-Terrestrial Physics, 73, 1953–1958. https://doi.org/10.1016/j.jastp.2011.06.002

Stephan, K. (2009). A Tale of Two Papers:  Early Contributions to Coupled Oscillator Array Theory.

Stephan, K., Stapleton, W. A., Ghimire, S., & Bunnell, J. (2009). Spectroscopy Applied to Observations of Terrestrial Light Sources of Uncertain Origin. American Journal of Physics, 77(8).

Stephan, K., Ghimire, S., Bunnell, J., & Stapleton, W. (2009). Spectroscopy applied to observations of terrestrial light sources of uncertain origin. American Journal of Physics, 77, 697–703.

Stephan, K., & Massey, N. (2008). Burning molten metallic spheres:  one class of ball lightning? Journal of Atmospheric and Solar-Terrestrial Physics, 70, 1589–1596.

Stephan, K. (2008). Friedrich Dessauer’s Engineering Life Well Lived. P. E.:  The Magazine for Professional Engineers, 10.

Stephan, K. (2008). Electrostatic charge bounds for ball lightning models. Physica Scripta, 77.

Stephan, K. (2007). We’ve Got to Talk:  Emergency Communications and Engineering Ethics. IEEE Technology and Society Magazine, 26, 42–48.

Stephan, K., Wang, L.-Y., & Ryza, E. (2007). Microwave Radiometry for Cement Kiln Temperature Measurements. Journal of Microwave Power and Electromagnetic Energy, 40, 140–144.

Stephan, K. (2007). The only ethics rule you’ll ever need. IEEE Technology & Society Magazine, 26, 5.

Stephan, K. (2007). Microwave-Assisted Investigation of Luminous Atmospheric-Pressure Plasmoids (pp. 98–101).

Stephan, K. (2007). Incident at Morales. IEEE Technology & Society Magazine.

Stephan, K., Mead, J. B., Pozar, D. M., Wang, L.-Y., & Pearce, J. A. (2007). A Near-Field Focused Microstrip Array for a Radiometric Temperature Sensor. IEEE Trans. on Antennas and Propagation, 55, 1199–1203.

Stephan, K. (2006). Digital Video Recorder. In World Book Encyclopedia.

Stephan, K. (2006). Electronics. In World Book Encyclopedia.

Stephan, K. (2006). Image Orthicon. In World Book Encyclopedia.

Stephan, K. (2006). Notes for a History of the IEEE Society on Social Implications of Technology. IEEE Technology and Society Magazine, 25, 5–14.

Stephan, K. (2006). Engineering ethics - do you see the problem?  is that all you see? IEEE Technology & Society Magazine, 25, 3.

Stephan, K. (2006). Microwave generation of stable atmospheric-pressure fireballs in air. Physical Review E, 74.

Stephan, K., & Merryman, S. (2006). Christian Ethics and the Educational Evaluation of Professional Ethics:  Conflict or Opportunity?

Stephan, K. (2006). The Antennas and Propagation Society 1949-2004:  a chronology. IEEE Antennas and Propagation Magazine, 48, 181–185.

Stephan, K., & Pearce, J. A. (2005). Microwave Radiometry for Continuous Non-Contact Temperature Measurements During Microwave Heating. Journal of Microwave Power & Electromagnetic Energy, 40, 49–61.

Stephan, K., & Sriraman, V. (2005). Globalizing Manufacturing Engineering Education. IEEE Technology & Society Magazine, 24, 16–22.

Stephan, K. (2005). Engineers without borders. IEEE Technology & Society Magazine, 24, 3–4.

Stephan, K., Pearce, J. A., Wang, L., & Ryza, E. (2005). Cement Kiln Temperature Measurements Using Microwave Radiometry.

Stephan, K., Pearce, J. A., Wang, L., & Ryza, E. (2005). Temperature Measurements  Through Dust or Steam for Energy-Intensive Industries.

Stephan, K. (2005). Radiometry Before World War II. IEEE Antennas and Propagation Magazine, 47, 28–37.

Stephan, K. (2004). Can engineering ethics be taught? IEEE Technology & Society Magazine, 23, 5–8.

Stephan, K., & Pearce, J. A. (2004). Continuous Non-Contact Remote Temperature Sensing During Microwave Heating With Microwave Radiometry (pp. 38–41).

Stephan, K., & Sriraman, V. (2004). A Digital Electronics  Course Using CPLDs for Manufacturing Engineers.

Stephan, K., & Sriraman, V. (2004). Globalizing Manufacturing Engineering Education.

Stephan, K., Pearce, J. A., Wang, L., & Ryza, E. (2004). Prospects for Industrial Remote Temperature Sensing Using Microwave Radiometry (pp. 651–654).

Goldsmith, P., Itoh, T., & Stephan, K. (2003). Quasi–optical techniques. In K. Chang (Ed.), Handbook of RF/Microwave Components and Engineering (pp. 387–426). New York: Wiley.

Stephan, K. (2003). How Ethics was Specialized Away. Academic Questions, 16, 31–40.

Stephan, K., & Sriraman, V. (2003). Digital and Control Labs for a New Manufacturing Engineering Curriculum.

Stephan, K., & Pearce, J. A. (2002). Low-Cost Remote Temperature Sensor for Microwave and RF Heating Using Microwave Radiometry. Journal of Microwave Power & Electromagnetic Energy, 37, 113–124.

Stephan, K. (2002). All This and Engineering Too:  History of Accreditation Requirements for Non-Technical Curriculum Content in U. S. Engineering Education 1933-2000. IEEE Technology & Society Magazine, 21, 8–15.

Stephan, K. (2002). Is Engineering Ethics Optional? IEEE Technology & Society Magazine, 20, 6–12.

Stephan, K. (2002). What Does Evolutionary Computing Say About Intelligent Design (Vol. 1.4). Retrieved from http://www.iscid.org/pcid/2002/1/4/stephan_evolutionary_computing.php

Stephan, K., & Pearce, J. A. (2002). Microwave Remote Temperature Sensing for Use in Microwave and RF Heating (pp. 63–66).

Stephan, K., & Pearce, J. A. (2002). Antennas and Reflectors for Near-Field Radiometric Remote Sensing of Temperature in Industrial Applications (Vol. 4, pp. 302–305).

Stephan, K. (2001). Is Engineering Ethics Optional? IEEE Technology & Society Magazine, 20, 6–12.

Stephan, K. (2001). Experts at Play:  Magnetron Research at Westinghouse, 1930-1934. Technology & Culture, 42, 737–749.

Stephan, K. (2001). Response to Rosalind Williams essay. Technology & Culture (Vol. 42, pp. 839–846).

Stephan, K. (2001). All This and Engineering Too:  History of Accreditation Requirements for Non-Technical Curriculum Content in U. S. Engineering Education 1933-2000 (pp. 155–161).

Stephan, K., & Pearce, J. A. (2001, April). Simple Low-Cost 12-GHz Radiometer for Volume Temperature Measurements, 71–74.

Stephan, K. (2000). Engineering Ethics Needed Now. Appliance Manufacturer, 48, 260.

Stephan, K. (2000). Engineering Ethics Education in the U. S.:  Where It Is and Where It Should Go.

Stephan, K. (2000). A Survey of Ethics-Related Instruction in U. S. Engineering Programs. Erratum, 89, 1.

Stephan, K. (1999). Technologizing the Home:  Mary Pennington and the Rise of Domestic Food Refrigeration (pp. 290–294).

Stephan, K. (1999). Women, Food, and CFCs:  A Technological Literacy Course Based on the History of Refrigeration.

Stephan, K. (1999). A Survey of Ethics-Related Instruction in U. S. Engineering Programs. ASEE Jour. of Engineering Education, 88, 459–464.

Stephan, K. (1999). The Vacuum Tube Museum at Manhattan College. In Antenna newsletter of “Mercurians” section of the Society for the History of Technology (p. 11).

Stephan, K. (1999). How Ewen and Purcell Discovered the 21-cm Interstellar Hydrogen Line. IEEE Antennas and Propagation Magazine, 41, 7–17.

Stephan, K. (1998). Waveguides, Electromagnetic. In T. A. Tombrello (Ed.), Magill’s Survey of Science:  Physical Science Series, Supplement (pp. 3164–3171). Pasadena, CA: Salem Press.

Stephan, K. (1998). Telegraphy. In D. R. Franceschetti (Ed.), Magill’s Survey of Science:  Applied Science Series, Supplement (pp. 3256–3262). Pasadena, CA: Salem Press.

Stephan, K. (1997). Beam-Control Arrays, Chap. 10. In R. A. York & Z. B. Popovic (Eds.), Active and Quasi-Optical Arrays for Solid-State Power Combining (pp. 377–407). New York: Wiley.

Stephan, K. (1996). Mary Engle Pennington, Food Refrigeration Engineer.

Stephan, K. (1996). Liberté!  Egalité!  Télégraphie!---The French Cable Station in Orleans, Massachusetts. IEEE Antennas and Propagation Magazine, 38, 30–37.

Stephan, K. (1996). The French Cable Station Museum in Orleans, Massachusetts. In Antenna newsletter of “Mercurians” section of the Society for the History of Technology.

Stephan, K. (1995). Back to the future:  the telegraph as an introduction to electrical and computer engineering (p. 4a5.8-4a5.11).

Stephan, K. (1994). Microwaves Faster than Light Redux. In letter to editor of IEEE Antennas and Propagation Magazine (Vol. 36, p. 72).

Stephan, K. (1994). N-rays, super-dielectrics, and microwaves faster than light:  improbable discoveries in electromagnetics (Vol. 5, pp. 3–9).

Stephan, K. (1993). Microwave Communications. In F. N. Magill (Ed.), Magill’s Survey of Science:  Applied Science (pp. 1704–1711). Pasadena, CA: Salem Press.

Huguenin, G. R., Hsieh, C.-T., Kapitsky, J. E., Moore, E. L., Stephan, K., & Vickery, A. S. (1993). Contraband detection through clothing by means of millimeter-wave imaging (pp. 117–128).

Stephan, K., Spooner, F. H., & Goldsmith, P. F. (1993). Quasioptical millimeter-wave hybrid and monolithic PIN-diode  switches. IEEE Trans. on Microwave  Theory and Techniques, 41, 1791–1798.

Stephan, K. (1993). N-rays, super-dielectrics, and microwaves faster than light:  improbable discoveries in electromagnetics (Vol. 35, pp. 13–18).

Stephan, K., & Goldsmith, P. F. (1992). W-band quasioptical integrated PIN diode switch (pp. 591–594).

Stephan, K. (1992). New device/circuit integration, 1267.

Stephan, K., Wong, S.-C., Brown, E. R., Molvar, K. M., Calawa, A. R., & Manfra, M. J. (1992). 5 mW parallel-connected resonant-tunneling diode oscillator. Electronics Letters, 28, 1411–1412.

Brown, E. R., Parker, C. D., Molvar, K. M., & Stephan, K. (1992). A quasioptically stabilized resonant-tunneling-diode oscillator for the  millimeter- and submillimeter-wave regions. IEEE Trans. on Microwave Theory and  Tech., 40, 846–850.

Stephan, K., Wong, S. C., & Brown, E. R. (1991). Lossy-line stabilization of negative-resistance diodes for  integrated-circuit oscillators (pp. 154–162).

Stephan, K., Brown, E. R., Parker, C. D., Goodhue, W. D., Chen, C. L., & Sollner, T. C. L. G. (1991). Resonant-tunneling diode oscillator using a slot-coupled quasioptical open resonator. Electronics Letters, 27, 647–649.

Stephan, K., & Itoh, T. (1990). Recent efforts on planar components for active quasi-optical  applicatons (pp. 1205–1208).

Shillue, W. P., & Stephan, K. (1990). A technique for the measurement of mutual impedance of monolithic  solid-state quasioptical oscillators. Microwave and Optical Technology Letters, 3, 414–416.

Goldsmith, P., Itoh, T., & Stephan, K. (1989). Quasi–optical techniques, Chapter 7. In K. Chang (Ed.), Handbook of Microwave and Optical Components (Vol. 1, pp. 344–363). New York: Wiley.

Shillue, W. P., Wong, S. C., & Stephan, K. (1989). Monolithic IMPATT oscillator stabilized by open-cavity resonator (pp. 739–740).

Stephan, K., & Young, S. L. (1988). Quasioptical microwave and millimeter–wave power combining (Vol. 947, pp. 52–56).

Zhao, J.-F., Stephan, K., Wong, S. C., & Porter, R. S. (1988). Tensor permittivity measurements of thin films at millimeter wavelengths. Int’l. Journal of Infrared and Millimeter Waves, 9, 1093—1106.

Morgan Jr., W. A., & Stephan, K. (1988). An X–band experimental model of a millimeter–wave interinjection–locked phased array system. IEEE Trans. on Antennas and Propagation, 36, 1641—1645.

Stephan, K., Young, S. L., & Wong, S. C. (1988). Microstrip circuit applications of high-Q open microwave  resonators. IEEE Trans. on Microwave Theory and  Tech., 36, 1319–1327.

Stephan, K., & Young, S. L. (1988). Mode determination of planar coupled millimeter–wave oscillators by quasioptical injection locking. Microwave and Optical Technology Letters, 1, 156–160.

Stephan, K., & Young, S. L. (1988). Mode stability of radiation–coupled interinjection–locked oscillators for integrated phased arrays. IEEE Trans. on Microwave Theory and  Tech., MTT–36, 921—924.

Stennes, M., Stephan, K., Campbell, H., Smith, C. P., & Zilberstein, R. M. (1987). Investigation of thick–film technology for microwave applications. Microelectronics Journal, 18, 29–36.

Stephan, K., & Young, S. L. (1987). The open-cavity millimeter-wave resonator as a high–Q microstrip  circuit element (p. 42).

Stephan, K., & Young, S. L. (1987). Open cavity resonator as high–Q microstrip circuit element. Erratum, 23, 1397.

Morgan, Jr., W. A., & Stephan, K. (1987). Inter–injection locking — a novel phase control technique for  monolithic phased arrays (pp. 81–82).

Stephan, K., & Young, S. L. (1987). Open cavity resonator as high–Q microstrip circuit element. Electronics Letters, 23, 1028–1029.

Stephan, K., & Morgan, Jr., W. A. (1987). Analysis of inter–injection–locked oscillators for integrated phased arrays. IEEE Trans. on  Antennas and Propagation, AP–35, 771–781.

Young, S. L., & Stephan, K. (1987). Stabilization and power combining of planar microwave oscillators  with an open resonator (pp. 185–188).

Young, S. L., & Stephan, K. (1987). Radiation coupling of inter–injection–locked oscillators (Vol. 791, pp. 69–76).

Stephan, K. (1986). Quasi–optical mixer measurements.

Stephan, K. (1986). Inter–injection–locked oscillators for power combining and phased arrays. IEEE Trans. on Microwave Theory and  Tech., MTT–34, 1017–1025.

Stephan, K., & Hubert, J. (1986). Inter–injection–locked oscillators with applications to spatial  power combining and phased arrays (pp. 159–162).

Stephan, K., & Itoh, T. (1985). Quasi–optical microwave and millimeter–wave mixers (pp. 17–27).

Stephan, K., & Perks, G. (1985). Quasi–optical slot–ring mixer noise figure measurements (pp. 643–644).

Hegazi, G., & Stephan, K. (1985). Analysis and measurements of a quasi–optical slot–ring mixer (pp. 183–184).

Stephan, K., & Itoh, T. (1984). Inexpensive short–range microwave telemetry transponder. Electronics Letters, 20, 877–878.

Stephan, K., & T., T. (1984). A planar quasi–optical subharmonically pumped mixer characterized by isotropic conversion loss. IEEE  Trans. on Microwave Theory and Tech., MTT–32, 97–101.

Stephan, K., & Itoh, T. (1983). Isotropic conversion loss as a measure of quasi–optical mixer  efficiency.

Itoh, T., & Stephan, K. (1983). Quasi–optical planar mixers for millimeter-wave imaging  applicationsQuasi–optical planar mixers for millimeter-wave imaging  applicationsQuasi–optical planar mixers for millimeter-wave imaging  applications (Vol. 423, pp. 35–39).

Stephan, K., Camilleri, N., & Itoh, T. (1983). A quasi–optical polarization–duplexed balanced mixer for millimeter–wave applications. Erratum, MTT–31, 504.

Stephan, K., Camilleri, N., & Itoh, T. (1983). A quasi–optical polarization–duplexed balanced mixer for millimeter–wave applications. IEEE Trans. on Microwave Theory and  Tech., MTT–31, 164–170.

Stephan, K., Camilleri, N., & Itoh, T. (1982). Quasi–optical polarization–duplexed balanced mixer (pp. 376–378).

Stephan, K. (1981). Examining scrambling. Telephone Engineer and Management.

Stephan, K. (1981). Examining scrambling. Communications Engineering Digest (Cable TV Trade Publication).