@article{Heuermann1995,
  author    = {Heuermann, Holger},
  title     = {Selbstkalibrierverfahren zur Systemfehlerkorrektur von Streuparametermessungen auf Halbleitersubstraten},
  series = {Mikrowellen und Optronik : Kongreßunterlagen = Microwaves and optronics / MIOP '95, 8. Kongreßmesse f{\"u}r Hochfrequenztechnik, Messehalle Sindelfingen, 30. Mai - 1. Juni 1995. [Hrsg.: Network GmbH]},
  journal   = {Mikrowellen und Optronik : Kongreßunterlagen = Microwaves and optronics / MIOP '95, 8. Kongreßmesse f{\"u}r Hochfrequenztechnik, Messehalle Sindelfingen, 30. Mai - 1. Juni 1995. [Hrsg.: Network GmbH]},
  address   = {Hagenburg},
  isbn      = {3-924651-45-0},
  pages     = {23 -- 29},
  year      = {1995},
  language  = {de}
}
@article{HeuermannGraf1996,
  author    = {Heuermann, Holger and Graf, W.},
  title     = {Vergleich mehrerer Naeherungsverfahren zur Berechnung des Wellenwiderstandes von Mikrostreifenleitungen mit experimentellen Ergebnissen},
  series = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 39. 1996 (1996)},
  journal   = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 39. 1996 (1996)},
  year      = {1996},
  language  = {de}
}
@article{HeuermannSchiek1994,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {Sichere on-wafer-Streuparameter-Messungen mit Selbstkalibrierverfahren},
  series = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 38. 1994 (1994)},
  journal   = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 38. 1994 (1994)},
  pages     = {611 -- 622},
  year      = {1994},
  language  = {de}
}
@article{HeuermannEmmrichBongartz2022,
  author    = {Heuermann, Holger and Emmrich, Thomas and Bongartz, Simon},
  title     = {Microwave spark plug to support ignitions with high compression ratios},
  series = {IEEE Transactions on Plasma Science},
  journal   = {IEEE Transactions on Plasma Science},
  number    = {Early Access},
  publisher = {IEEE},
  issn      = {1939-9375},
  doi       = {10.1109/TPS.2022.3183690},
  pages     = {1 -- 6},
  year      = {2022},
  abstract  = {Upcoming gasoline engines should run with a larger number of fuels beginning from petrol over methanol up to gas by a wide range of compression ratios and a homogeneous charge. In this article, the microwave (MW) spark plug, based on a high-speed frequency hopping system, is introduced as a solution, which can support a nitrogen compression ratio up to 1:39 in a chamber and more. First, an overview of the high-speed frequency hopping MW ignition and operation system as well as the large number of applications are presented. Both gives an understanding of this new base technology for MW plasma generation. Focus of the theoretical part is the explanation of the internal construction of the spark plug, on the achievable of the high voltage generation as well as the high efficiency to hold the plasma. In detail, the development process starting with circuit simulations and ending with the numerical multiphysics field simulations is described. The concept is evaluated with a reference prototype covering the frequency range between 2.40 and 2.48 GHz and working over a large power range from 20 to 200 W. A larger number of different measurements starting by vector hot-S11 measurements and ending by combined working scenarios out of hot temperature, high pressure and charge motion are winding up the article. The limits for the successful pressure tests were given by the pressure chamber. Pressures ranged from 1 to 39 bar and charge motion up to 25 m/s as well as temperatures from 30◦ to 125◦.},
  language  = {en}
}
@article{Heuermann1999,
  author    = {Heuermann, Holger},
  title     = {Calibration procedures with series impedances and unknown lines simplify on-wafer measurements},
  series = {IEEE transactions on microwave theory and techniques : MTT ; a publication of the IEEE Microwave Theory and Techniques Society. 47 (1999), H. 1},
  journal   = {IEEE transactions on microwave theory and techniques : MTT ; a publication of the IEEE Microwave Theory and Techniques Society. 47 (1999), H. 1},
  isbn      = {0018-9480},
  pages     = {1 -- 5},
  year      = {1999},
  language  = {en}
}
@article{HeuermannSchiek1995,
  author    = {Heuermann, Holger and Schiek, B.},
  title     = {Error corrected impedance measurements with a network analyzer},
  series = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 44 (1995), H. 2},
  journal   = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 44 (1995), H. 2},
  isbn      = {0018-9456},
  pages     = {295 -- 299},
  year      = {1995},
  language  = {en}
}
@article{HeuermannSchiek1994,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {Error Corrected Impedance Measurements with a Network Analyzer},
  pages     = {125 -- 126},
  year      = {1994},
  language  = {en}
}