Theodore G. Camenisch

EPR Systems Engineer, Department of Biophysics

(414) 955-4020

Background & Research Interests

Mr. Camenisch received his BS degree from the Milwaukee School of Engineering in 1980 and has since been employed by the Medical College of Wisconsin.

Major interest and expertise is in the design of:

  • Pre-A/D signal conditioning circuitry
  • Low noise amplifiers
  • Fast settling amplifiers
  • Filters

Experience specific to EPR:

  • EPR bridge design, including both microwave and electronic aspects of construction
  • Saturation recovery bridge and signal conditioning system design
  • Involvement in the design or modification of L-, S-, C-, K-, and Q-band bridges


Mainali L, Sidabras JW, Camenisch TG, Ratke JJ, Raguz M, Hyde JS, Subczynski WK. Spin-label W-band EPR with seven-loop–six-gap resonator: application to lens membranes derived from eyes of a single donor.  App Magn Reson. (2014) 45:1343–58. PMC4273494

Mainali L, Raguz M, Camenisch TG, Hyde JS, Subczynski WK. Spin-label saturation-recovery EPR at W-band: Applications to eye lens lipid membranes. J Magn Reson. (2011) 212:86–94. PMC3163743

Kittell AW, Camenisch TG, Ratke JJ, Sidabras JW, Hyde JS. Detection of undistorted continuous wave (CW) electron paramagnetic resonance (EPR) spectra with non-adiabatic rapid sweep (NARS) of the magnetic field. J Magn Reson. (2011) 211:228–33. PMC3148028

Hyde JS, Strangeway RA, Camenisch TG. Multiarm EPR spectroscopy at multiple microwave frequencies: Multiquantum (MQ) EPR, MQ ELDOR, saturation recovery (SR) EPR, and SR ELDOR [chapter 5.1], in: Multifrequency Electron Paramagnetic Resonance: Theory and Applications (Misra S, ed.). Wiley: Berlin, 2011, pp. 229–44.

Subczynski WK, Mainali L, Camenisch TG, Froncisz W, Hyde JS. Spin-label oximetry at Q- and W-band. J Magn Reson. (2011) 209:142–8. PMC3065517

Hyde JS, Strangeway RA, Camenisch TG, Ratke JJ, Froncisz W. W-band frequency-swept EPR. J. Magn. Reson. (2010) 205:93–101. PMC2885579

Camenisch TG, Ratke JJ, Strangeway RA, Hyde JS. A versatile Q-band electron paramagnetic resonance spectrometer. Electro/Information Technology Conference, 2004. EIT 2004. IEEE, pp. 66–81.

Froncisz W, Camenisch TG, Ratke JJ, Anderson JR, Subczynski WK, Strangeway RA, Sidabras JW, Hyde JS. Saturation recovery EPR and ELDOR at W-band for spin labels. J Magn Reson. (2008) 193:297–304. PMC2561891

Sidabras JW, Mett RR, Froncisz W, Camenisch TG, Anderson JR, Hyde JS. Multipurpose EPR loop gap resonator and cylindrical TE011 cavity for aqueous samples at 94 GHz. Rev Sci Instrum. (2007) 78(3):034701.

Hyde JS, Froncisz W, Sidabras JW, Camenisch TG, Anderson JR, Strangeway RA. Microwave frequency modulation in CW EPR at W‑band using a loop-gap resonator. J Magn Reson . (2007) 185:259–63.

Klug CS, Camenisch TG, Hubbell WL, Hyde JS. Multiquantum EPR Spectroscopy of Spin-Labeled Arrestin K267C at 35 GHz. Biophys J. (2005) 88:3641-3647. PMC1305511

Hyde JS, Yin J-J, Subczynski WK, Camenisch TG, Ratke JJ, Froncisz W. Spin label EPR T1 Values Using Saturation Recovery from 2 to 35 GHz. J Phys Chem B. (2004) 108(27):9524–9.

Hyde JS, Camenisch TG, Ratke JJ, Strangeway RA, Froncisz W. Digital Detection by Time-Locked Sampling in EPR, in: Biological Magnetic Resonance, Volume 24: Biomedical EPR - Part B: Methodology and Instrumentation (Eaton, S.S., Eaton, G.R., Berliner, L.J. eds.) Kluwer Academic/Plenum Publishers, New York, NY, 2005, pp.199–222.

Froncisz W, Camenisch TG, Ratke JJ, Hyde JS. Pulse Saturation Recovery, Pulse ELDOR and Free Induction Decay EPR Detection Using Time-Locked Subsampling. Rev. Sci. Instrum. (2001) 72:1837–42.

Hyde JS, Mchaourab HS, Camenisch TG, Ratke JJ, Cox RW, Froncisz W. Electron Paramagnetic Resonance Detection by Time-Locked Subsampling. Rev Sci Instrum. (1998) 69:2622-8.

Hyde JS, Newton ME, Strangeway RA, Camenisch TG, Froncisz W. Electron Paramagnetic Resonance Q-Band Bridge with GaAs Field-Effect Transistor Signal Amplifier and Low-Noise Gunn Diode Oscillator. Rev. Sci. Instrum. (1991) 62:2969–75.