J. R. Natzke ~ Publications
PAPERS
 A. W. Janzen and J. R. Natzke, “Magnetic Battery Feasibility Study using Flux Switching
Topology,” IEEE Trans. Magnetics, Vol. 51, No. 6, pp. 1–8, June 2015.
 J. Gerdes, J. R. Natzke, and G. Spivey, “Creating a Portable MP3 Player Three-Band Graphic
Equalizer and Amplifier for a Circuits Laboratory Final Project,” Proc. ASEE/IEEE
Frontiers in Education, Milwaukee, Wis., Oct. 10–13, 2007, 6pp.
 E. M. Godshalk, J. R. Natzke, ___, and T. Yamaguchi, “Automated Parametric Test
Measurement of 1/f and Popcorn Noise,” Technical Summary Report (confidential), Maxim
Integrated Products, Inc., Beaverton, Ore., Dec. 6, 2005.
 J. R. Natzke and N. Ninteman, “The George Fox University Freshman Experience: A
Projects Based Integrative Approach to Engineering Design,” Proc. American Society of
Engineering Education, Portland, Ore., June 12–15, 2005, 14pp.
 J. R. Natzke, “A New BSE under the New ABET Criteria at George Fox University,” Proc.
3rd Christian Engineering Education Conference, Waxhaw, N.C., June 23–25, 1999, pp. 44–
53.
 J. R. Natzke and T. K. Ishii, “Computer Simulation of Electromagnetic Field Behavior of a
Tapered Iris,” Intl. J. of Computer Simulation, Vol. 6, No. 4, pp. 469–487, 1996.
 J. R. Natzke and J. L. Volakis, “Characterization of a Resistive Half Plane over a Resistive
Sheet,” IEEE Trans. Antennas and Propagation, Vol. 41, No. 8, pp. 1063–1068, Aug. 1993.
 J. R. Natzke and T. K. Ishii, “Electric Fields of an H-plane Tapered Iris,” IEEE Trans.
Microwave Theory and Techniques, Vol. 41, No. 8, pp. 1463–1465, Aug. 1993.
 J. R. Natzke, M. R. Wolski, and T. K. Ishii, “Electromagnetic Field Plot of an Inductive
Window by the Moment Method,” IEEE Trans. Microwave Theory and Techniques, Vol. 39,
No. 8, pp. 1296–1300, Aug. 1991.
 T. B. A. Senior, K. Sarabandi, and J. R. Natzke, “Scattering by a Narrow Gap,” IEEE Trans.
Antennas and Propagation, Vol. 38, No. 7, pp. 1102–1110, July 1990.
PRESENTATIONS
 A. Janzen and J. R. Natzke, “Improving Motor Efficiency using Back Electromotive Force
Recapture,” Twenty-First Regional Conference on Undergraduate Research, Murdock
College Science Research Program, Whitman College, Walla Walla, Wash., Oct. 26–27,
2012.
 D. Swanson and J. R. Natzke, “Improvements on the Source Boundary Condition in the
Electromagnetic Finite Difference Time Domain Method,” Twentieth Regional Conference
on Undergraduate Research, Murdock College Science Research Program, Seattle Univ.,
Seattle, Wash., Nov. 11–12, 2011.
 C. J. Hammond and J. R. Natzke, “Dynamic Magnetic Levitation for Rotational Electronic
Motors,” Sixteenth Regional Conference on Undergraduate Research, Murdock College
Science Research Program, Willamette Univ., Salem, Ore., Nov. 2–3, 2007.
 J. Moore and J. R. Natzke, “Matlab Modeling of First Order Boundary Conditions for FDTD
Solutions on a One-dimensional Transmission Line,” Fourteenth Regional Conference on
Undergraduate Research, Murdock College Science Research Program, Northwest Nazarene
College, Nampa, Id., Nov. 11–12, 2005.
J. R. Natzke ~ Publications
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J. R. Natzke and N. Ninteman, “The George Fox University Freshman Experience: A
Projects Based Integrative Approach to Engineering Design,” Proc. American Society of
Engineering Education, Portland, Ore., June 12–15, 2005, 14pp.
J. R. Natzke, “An Investigation on FDTD Solutions for Non-absorbing Boundaries,”
National Radio Science Meeting, Boulder, Col., Jan. 5–8, 2005.
J. R. Natzke, “Teaching the FDTD Method in the Junior Undergraduate Electromagnetics
Course,” Intl. Union of Radio Science Meeting Digest, Monterey, Calif., June 20–25, 2004.
T. Creason and J. R. Natzke, “Radio Wave Scattering by Planar Structures: Applications to
Cell Phone Transmission among Tall Buildings,” Ninth Regional Conference on
Undergraduate Research, Murdock College Science Research Program, U. of Puget Sound,
Tacoma, Wash., Nov. 3–4, 2000.
J. R. Natzke, “Using Half Plane Currents as Basis Functions in Moment Method Solutions of
Two-Dimensional Strips,” Intl. Union of Radio Science Meeting Digest, Salt Lake City,
Utah, July 16–21, 2000.
J. R. Natzke, “Launching an EM Wave from a Current Loop using the Biot-Savart Law,”
Proc. Oregon Academy of Science, George Fox University, Newberg, Ore., Feb. 26, 2000, p.
54.
A. Watson and J. R. Natzke, “Computational Investigation of the Static and Transient
Behavior of Current Loops,” Proc. Oregon Academy of Science, George Fox University,
Newberg, Ore., Feb. 26, 2000, p. 57; Eighth Regional Conference on Undergraduate
Research, Murdock College Science Research Program, Linfield College, McMinnville,
Ore., Oct. 29–30, 1999.
J. R. Natzke, “A New BSE under the New ABET Criteria at George Fox University,” Proc.
3rd Christian Engineering Education Conference, Waxhaw, N.C., June 23–25, 1999, pp. 44–
53.
N. Slegers and J. R. Natzke, “Three Dimensional Field Analysis of Compound Magnetic
Circuits,” Seventh Regional Conference on Undergraduate Research, Murdock College
Science Research Program, Northwest Nazarene College, Nampa, Id., Nov. 6–7, 1998.
L. Osborn and J. R. Natzke, “Numerical Modeling of Compound Magnetic Circuits,” Sixth
Regional Conference on Undergraduate Research, Murdock College Science Research
Program, Willamette U., Salem, Ore., Oct. 31–Nov. 1, 1997.
J. R. Natzke and T. B. A. Senior, “Wave Guiding Properties of Parallel Resistive Sheets,”
Intl. Union of Radio Science Meeting Digest, U. of Michigan, Ann Arbor, June 28–July 2,
1993, p. 262.
J. R. Natzke and T. B. A. Senior, “Diffraction by an Impedance Wedge–Resistive Sheet
Junction,” Intl. Union of Radio Science Meeting Digest, U. of Western Ontario, London, June
24–28, 1991, p. 302.