@article{HammHartung2011,
  author    = {Hamm, Laurits and Hartung, Frank},
  title     = {High Quality Visual Communication based on IMS},
  series = {Mobilkommunikation : Technologien und Anwendungen ; Vortr{\"a}ge der 16. ITG-Fachtagung vom 18. bis 19. Mai 2011 in Osnabr{\"u}ck / Veranst.: Informationstechnische Gesellschaft im VDE (ITG) ... Tagungsleitung: Ralf T{\"o}njes. Programmkomitee/Hrsg.: Peter Roer},
  journal   = {Mobilkommunikation : Technologien und Anwendungen ; Vortr{\"a}ge der 16. ITG-Fachtagung vom 18. bis 19. Mai 2011 in Osnabr{\"u}ck / Veranst.: Informationstechnische Gesellschaft im VDE (ITG) ... Tagungsleitung: Ralf T{\"o}njes. Programmkomitee/Hrsg.: Peter Roer},
  publisher = {VDE-Verl.},
  address   = {Berlin},
  isbn      = {978-3-8007-3352-1},
  pages     = {80 -- 85},
  year      = {2011},
  language  = {en}
}
@article{HansenBitzStreckert1999,
  author    = {Hansen, Volkert W. and Bitz, Andreas and Streckert, Joachim R.},
  title     = {RF Exposure of Biological Systems in Radial Waveguides},
  series = {IEEE Transactions on Electromagnetic Compatibility},
  volume    = {41},
  journal   = {IEEE Transactions on Electromagnetic Compatibility},
  number    = {4},
  issn      = {1558-187X},
  doi       = {10.1109/15.809852},
  pages     = {487 -- 493},
  year      = {1999},
  language  = {en}
}
@article{Hartung2003,
  author    = {Hartung, Frank},
  title     = {Mobile DRM Introduction: The Need for Mobile DRM},
  series = {Digital Rights Management : Technological, Economic, Legal and Political Aspects / Becker, Eberhard [u.a.]},
  journal   = {Digital Rights Management : Technological, Economic, Legal and Political Aspects / Becker, Eberhard [u.a.]},
  publisher = {Springer},
  address   = {Berlin},
  pages     = {138 -- 149},
  year      = {2003},
  language  = {en}
}
@article{HartungBaldoHornetal.2004,
  author    = {Hartung, Frank and Baldo, N. and Horn, U. and Kampmann, M.},
  title     = {RTCP feedback based transmission rate control for 3G wireless multimedia streaming / Baldo, N. ; Horn, U. ; Kampmann, M. ; Hartung, F. ;},
  series = {15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. Date:5-8 Sept. 2004 ; Vol. 3},
  journal   = {15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. Date:5-8 Sept. 2004 ; Vol. 3},
  pages     = {1817 -- 1821},
  year      = {2004},
  language  = {en}
}
@article{HartungDondetiCastleford2007,
  author    = {Hartung, Frank and Dondeti, L. and Castleford, F.},
  title     = {Multimedia Internet KEYing (MIKEY) General Extension Payload for Open Mobile Alliance BCAST LTKM/STKM Transport / Dondeti, L. ; Castleford, D. ; Hartung, F.},
  pages     = {1 -- 7},
  year      = {2007},
  language  = {en}
}
@article{HartungGirod1997,
  author    = {Hartung, Frank and Girod, Bernd},
  title     = {Copyright protection in video delivery networks by watermarking of pre-compressed video / Hartung, Frank ; Girod, Bernd},
  series = {Multimedia Applications, Services and Techniques - EMAST ´97 : Second European Conference Milan, Italy, May 21-23, 1997 Proceedings / Fdida, Serge ; Morganti, Michele},
  journal   = {Multimedia Applications, Services and Techniques - EMAST ´97 : Second European Conference Milan, Italy, May 21-23, 1997 Proceedings / Fdida, Serge ; Morganti, Michele},
  publisher = {Springer},
  address   = {Berlin},
  pages     = {423 -- 436},
  year      = {1997},
  language  = {en}
}
@article{HartungGirod1996,
  author    = {Hartung, Frank and Girod, Bernd},
  title     = {Statistical optimization of switched two-level quantizers with application to DPCM encoding of color video / Hartung, Frank ; Girod, Bernd},
  series = {IEEE International Conference on Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996},
  journal   = {IEEE International Conference on Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996},
  isbn      = {0-7803-3192-3},
  pages     = {1974 -- 1977},
  year      = {1996},
  language  = {en}
}
@article{HartungGirodHorn1995,
  author    = {Hartung, Frank and Girod, Bernd and Horn, Uwe},
  title     = {Subband Image Coding / Girod, Bernd ; Hartung, Frank ; Horn, Uwe},
  series = {Subband and Wavelet Transforms: Design and Applications / ed. by Ali N. Akansu},
  journal   = {Subband and Wavelet Transforms: Design and Applications / ed. by Ali N. Akansu},
  publisher = {Kluwer},
  address   = {Boston},
  isbn      = {0792396456},
  pages     = {213 -- 250},
  year      = {1995},
  language  = {en}
}
@article{HartungHornHuschkeetal.2009,
  author    = {Hartung, Frank and Horn, Uwe and Huschke, J{\"o}rg and Kampmann, Markus},
  title     = {MBMS—IP Multicast/Broadcast in 3G Networks / Hartung, Frank ; Horn, Uwe ; Huschke, J{\"o}rg ; Kampmann, Markus ; Lohmar, Thorsten},
  series = {International Journal of Digital Multimedia Broadcasting. 2009 (2009)},
  journal   = {International Journal of Digital Multimedia Broadcasting. 2009 (2009)},
  isbn      = {1687-7586},
  pages     = {1 -- 25},
  year      = {2009},
  language  = {en}
}
@article{HartungHornHuschkeetal.2007,
  author    = {Hartung, Frank and Horn, Uwe and Huschke, J{\"o}rg and Kampmann, Markus},
  title     = {Delivery of Broadcast Services in 3G Networks / Hartung, Frank ; Horn, Uwe ; J{\"o}rg Huschke ; Kampmann, Markus ; Lohmar, Thorsten ; Lundevall, Magnus},
  series = {IEEE Transactions on Broastcasting. 53 (2007), H. 1 Part: 2},
  journal   = {IEEE Transactions on Broastcasting. 53 (2007), H. 1 Part: 2},
  isbn      = {0018-9316},
  pages     = {188 -- 199},
  year      = {2007},
  language  = {en}
}
@article{HartungHornHuschkeetal.2007,
  author    = {Hartung, Frank and Horn, Uwe and Huschke, J{\"o}rg and Kampmann, Markus},
  title     = {Mobile TV Services in 3G Networks / Hartung, Frank ; Horn, Uwe ; Huschke, J{\"o}rg ; Kampmann, Markus ; Lohmar, Thorsten},
  series = {KIVS 2007 : Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. M{\"a}rz 2007 in Bern, Schweiz ; Industriebeitr{\"a}ge, Kurzbeitr{\"a}ge und Workshops / T. Braun ... (Hrsg.)},
  journal   = {KIVS 2007 : Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. M{\"a}rz 2007 in Bern, Schweiz ; Industriebeitr{\"a}ge, Kurzbeitr{\"a}ge und Workshops / T. Braun ... (Hrsg.)},
  isbn      = {978-3-8007-2980-7},
  pages     = {15 -- 18},
  year      = {2007},
  language  = {en}
}
@article{HartungHusoy1993,
  author    = {Hartung, Frank and Husoy, J. H.},
  title     = {Wavelet and subband coding of images - A comparative study / Hartung, F. ; Husoy, J. H.},
  series = {Mathematical imaging: wavelet applications in signal and image processing : 15 - 16 July 1993, San Diego, California / sponsored and publ. by SPIE - the International Society for Optical Engineering. Andrew F. Laine, chair/ed},
  journal   = {Mathematical imaging: wavelet applications in signal and image processing : 15 - 16 July 1993, San Diego, California / sponsored and publ. by SPIE - the International Society for Optical Engineering. Andrew F. Laine, chair/ed},
  publisher = {SPIE},
  address   = {Bellingham, Wash.},
  isbn      = {081941283X},
  pages     = {242 -- 253},
  year      = {1993},
  language  = {en}
}
@article{HartungKampmannHornetal.2007,
  author    = {Hartung, Frank and Kampmann, M. and Horn, U. and Huschke, J.},
  title     = {Delivery of Mobile TV services in 3G cellular networks / Kampmann, M. ; Hartung, F. ; Horn, U. ; Huschke, J. ; Lohmar, T.},
  series = {Elektronische Medien : Vortr{\"a}ge des 12. Dortmunder Fernsehseminars vom 20. bis 21. M{\"a}rz 2007 in Dortmund / Veranst.: ITG-FKTG-Fachbereich 3 ... Wiss. Tagungsleitung: R. Kays},
  journal   = {Elektronische Medien : Vortr{\"a}ge des 12. Dortmunder Fernsehseminars vom 20. bis 21. M{\"a}rz 2007 in Dortmund / Veranst.: ITG-FKTG-Fachbereich 3 ... Wiss. Tagungsleitung: R. Kays},
  publisher = {VDE-Verl.},
  address   = {Berlin},
  isbn      = {978-3-8007-3019-3},
  pages     = {49 -- 52},
  year      = {2007},
  language  = {en}
}
@article{HartungKampmann2007,
  author    = {Hartung, Frank and Kampmann, Markus},
  title     = {Media Delivery Based on Service Aware Transport Overlay Networks / Kampmann, Markus ; Hartung, Frank},
  series = {KIVS 2007 : Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. M{\"a}rz 2007 in Bern, Schweiz ; Industriebeitr{\"a}ge, Kurzbeitr{\"a}ge und Workshops / T. Braun ... (Hrsg.)},
  journal   = {KIVS 2007 : Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. M{\"a}rz 2007 in Bern, Schweiz ; Industriebeitr{\"a}ge, Kurzbeitr{\"a}ge und Workshops / T. Braun ... (Hrsg.)},
  isbn      = {978-3-8007-2980-7},
  pages     = {9 -- 10},
  year      = {2007},
  language  = {en}
}
@article{HartungKampmannHornetal.2007,
  author    = {Hartung, Frank and Kampmann, Markus and Horn, Uwe and Kritzner, Jan},
  title     = {Mobile Television / Hartung, Frank ; Kampmann, Markus ; Horn, Uwe ; Kritzner, Jan},
  series = {Encyclopedia of mobile computing and commerce / David Taniar ; Bd. 2 : Mobile ICT - Z},
  journal   = {Encyclopedia of mobile computing and commerce / David Taniar ; Bd. 2 : Mobile ICT - Z},
  publisher = {Information Science Reference},
  address   = {Hershey},
  isbn      = {978-1-59904-002-8},
  pages     = {611 -- 615},
  year      = {2007},
  language  = {en}
}
@article{HartungKesiciCatrein2011,
  author    = {Hartung, Frank and Kesici, Sinan and Catrein, Daniel},
  title     = {DRM protected Dynamic Adaptive HTTP Streaming},
  series = {Proceedings of the 2011 ACM Multimedia Systems Conference [Elektronische Ressource] : February 23 - 25, 2011, San Jose, CA, USA / sponsored by: ACM SIGMM},
  journal   = {Proceedings of the 2011 ACM Multimedia Systems Conference [Elektronische Ressource] : February 23 - 25, 2011, San Jose, CA, USA / sponsored by: ACM SIGMM},
  publisher = {ACM},
  address   = {New York, NY},
  isbn      = {9781450305181},
  pages     = {277 -- 282},
  year      = {2011},
  language  = {en}
}
@article{HartungKumwilaisak2004,
  author    = {Hartung, Frank and Kumwilaisak, W.},
  title     = {An intraframe error concealment: nonlinear pattern alignment and directional interpolation / Kumwilaisak, W. ; Hartung, F.},
  series = {Conference on Image Processing, 2004. ICIP '04. 2004 International / Vol. 2 .},
  journal   = {Conference on Image Processing, 2004. ICIP '04. 2004 International / Vol. 2 .},
  pages     = {825 -- 828},
  year      = {2004},
  language  = {en}
}
@article{HartungNiebertSchiederetal.2006,
  author    = {Hartung, Frank and Niebert, Norbert and Schieder, Andreas and Rembarz, Ren{\´e}},
  title     = {Advances in network-supported media delivery in next-generation mobile systems / Hartung, Frank ; Niebert, Norbert ; Schieder, Andreas ; Rembarz, Ren{\´e} ; Schmid, Stefan ; Eggert, Lars},
  series = {IEEE Communications Magazine. 44 (2006), H. 8},
  journal   = {IEEE Communications Magazine. 44 (2006), H. 8},
  isbn      = {0163-6804},
  pages     = {82 -- 89},
  year      = {2006},
  language  = {en}
}
@article{HartungNohBaccichetetal.2009,
  author    = {Hartung, Frank and Noh, Jeonghun and Baccichet, Pierpaolo and Mavlankar, Aditya},
  title     = {Standford Peer-to-Peer Mulicast (SPPM) - Overview and recent Extensions / Noh, Jeonghun ; Baccichet, Pierpaolo ; Hartung, Frank ; Mavlankar, Aditya ; Girod, Bernd},
  isbn      = {978-1-4244-4593-6},
  pages     = {1 -- 4},
  year      = {2009},
  language  = {en}
}
@article{HartungRamme2000,
  author    = {Hartung, Frank and Ramme, F.},
  title     = {Digital rights management and watermarking of multimedia content for m-commerce applications / Hartung, F. ; Ramme, F.},
  series = {IEEE Communications Magazine. 38 (2000), H. 11},
  journal   = {IEEE Communications Magazine. 38 (2000), H. 11},
  isbn      = {0163-6804},
  pages     = {78 -- 84},
  year      = {2000},
  language  = {en}
}
@article{HartungReyMathieuetal.2004,
  author    = {Hartung, Frank and Rey, J. and Mathieu, B. and Lozano, D.},
  title     = {Media aware overlay routing in Ambient Networks / Rey, J. ; Mathieu, B. ; Lozano, D. ; Herborn, S. ; Ahmed, K. ; Schmid, S. ; Goebbels, S. ; Hartung, F. ; Kampmann, M.},
  series = {16th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. Date:11-14 Sept. 2005 ; Vol. 2},
  journal   = {16th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. Date:11-14 Sept. 2005 ; Vol. 2},
  pages     = {952 -- 957},
  year      = {2004},
  language  = {en}
}
@article{HartungSchiederKampmannetal.2006,
  author    = {Hartung, Frank and Schieder, Andreas and Kampmann, Markus and Vorwerk, Marc},
  title     = {Network Supported Media Delivery in Ambient Networks (Netzwerkunterst{\"u}tzte Medienverteilung) / Schieder, Andreas ; Kampmann, Markus ; Hartung, Frank ; Vorwerk, Marc ; Rembarz, Ren{\´e}},
  series = {it - Information Technology . 48 (2006), H. 5},
  journal   = {it - Information Technology . 48 (2006), H. 5},
  isbn      = {1611-2776},
  pages     = {264 -- 273},
  year      = {2006},
  language  = {en}
}
@inproceedings{HarzheimHeuermann2018,
  author    = {Harzheim, Thomas and Heuermann, Holger},
  title     = {Phase Repeatable Synthesizers as a New Harmonic Phase Standard for Nonlinear Network Analysis},
  series = {IEEE Transactions on Microwave Theory and Techniques},
  booktitle = {IEEE Transactions on Microwave Theory and Techniques},
  publisher = {IEEE},
  doi       = {10.1109/TMTT.2018.2817513},
  pages     = {1 -- 8},
  year      = {2018},
  language  = {en}
}
@inproceedings{HarzheimHeuermannMarso2016,
  author    = {Harzheim, Thomas and Heuermann, Holger and Marso, Michel},
  title     = {An Adaptive Biasing Method for SRD Comb Generators},
  series = {2016 German Microwave Conference (GeMiC)},
  booktitle = {2016 German Microwave Conference (GeMiC)},
  publisher = {IEEE},
  doi       = {10.1109/GEMIC.2016.7461613},
  pages     = {289 -- 292},
  year      = {2016},
  language  = {en}
}
@article{HarzheimMuehmelHeuermann2021,
  author    = {Harzheim, Thomas and M{\"u}hmel, Marc and Heuermann, Holger},
  title     = {A SFCW harmonic radar system for maritime search and rescue using passive and active tags},
  series = {International Journal of Microwave and Wireless Technologies},
  volume    = {13},
  journal   = {International Journal of Microwave and Wireless Technologies},
  number    = {Special Issue 7},
  publisher = {Cambridge University Press},
  address   = {Cambridge},
  doi       = {10.1017/S1759078721000520},
  pages     = {691 -- 707},
  year      = {2021},
  abstract  = {This paper introduces a new maritime search and rescue system based on S-band illumination harmonic radar (HR). Passive and active tags have been developed and tested while attached to life jackets and a small boat. In this demonstration test carried out on the Baltic Sea, the system was able to detect and range the active tags up to a distance of 5800 m using an illumination signal transmit-power of 100 W. Special attention is given to the development, performance, and conceptual differences between passive and active tags used in the system. Guidelines for achieving a high HR dynamic range, including a system components description, are given and a comparison with other HR systems is performed. System integration with a commercial maritime X-band navigation radar is shown to demonstrate a solution for rapid search and rescue response and quick localization.},
  language  = {en}
}
@inproceedings{HessLuanSchwarteetal.2001,
  author    = {Hess, Holger and Luan, Xuming and Schwarte, Rudolf and Zhang, Zhigang and Xu, Zhanping and Heinol, Horst-Guenther and Buxbaum, Bernd and Ringbeck, Thorsten},
  title     = {Three-dimensional intelligent sensing based on the PMD technology},
  series = {Sensors, Systems, and Next-Generation Satellites V : 17 - 20 September 2001, Toulouse, France. - (SPIE proceedings series ; 4540)},
  booktitle = {Sensors, Systems, and Next-Generation Satellites V : 17 - 20 September 2001, Toulouse, France. - (SPIE proceedings series ; 4540)},
  editor    = {Fujisada, Hiroyuki},
  publisher = {SPIE},
  address   = {Bellingham, Wash.},
  isbn      = {0-8194-4265-8},
  issn      = {0038-7355},
  pages     = {482 -- 488},
  year      = {2001},
  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{Heuermann1995,
  author    = {Heuermann, Holger},
  title     = {LZY: A Self-Calibration Approach in Competition to the LRM Method for On-Wafer Measurements},
  pages     = {129 -- 136},
  year      = {1995},
  language  = {en}
}
@article{Heuermann1996,
  author    = {Heuermann, Holger},
  title     = {Sure Methods of On-Wafer Scattering Parameter Measurements with Self-Calibration Procedures},
  pages     = {136 -- 145},
  year      = {1996},
  language  = {en}
}
@article{Heuermann1997,
  author    = {Heuermann, Holger},
  title     = {Microwave On-Wafer Measurements with Activ Needle Probe Tips},
  pages     = {208 -- 214},
  year      = {1997},
  language  = {en}
}
@article{Heuermann2003,
  author    = {Heuermann, Holger},
  title     = {GSOLT: the calibration procedure for all multi-port vector network analyzers},
  series = {IEEE MTT-S International Microwave Symposium digest : Philadelphia, Pennsylvania, 8 - 13 June 2003 ; [including: 2003 International Microwave Symposium digest, vol. 1-3, RF Integrated Circuit Symposium digest, Automatic RF Techniques Group Symposium digest . Vol. 3},
  journal   = {IEEE MTT-S International Microwave Symposium digest : Philadelphia, Pennsylvania, 8 - 13 June 2003 ; [including: 2003 International Microwave Symposium digest, vol. 1-3, RF Integrated Circuit Symposium digest, Automatic RF Techniques Group Symposium digest . Vol. 3},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  isbn      = {0-780-37696-X},
  pages     = {1815 -- 1818},
  year      = {2003},
  language  = {en}
}
@article{Heuermann2004,
  author    = {Heuermann, Holger},
  title     = {A Synthesis Technique for Mono- and Mixed-Mode Symmetrical Filter},
  series = {Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association . Vol. 1},
  journal   = {Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association . Vol. 1},
  publisher = {Horizon House Publ},
  address   = {London},
  isbn      = {1-580-53992-0},
  pages     = {309 -- 312},
  year      = {2004},
  language  = {en}
}
@article{Heuermann2006,
  author    = {Heuermann, Holger},
  title     = {Verringerung des Phasenrauschens von Oszillatoren durch Dual-Mode-Resonatoren},
  series = {HF-Report. 20 (2006), H. 5-6},
  journal   = {HF-Report. 20 (2006), H. 5-6},
  isbn      = {1431-827X},
  pages     = {43 -- 48},
  year      = {2006},
  language  = {en}
}
@article{Heuermann2006,
  author    = {Heuermann, Holger},
  title     = {Multiport S-parameter calculation from two-port network analyzer measurements with or without switch matrix},
  series = {ARFTG Conference, 2006 67th, San Francisco, CA},
  journal   = {ARFTG Conference, 2006 67th, San Francisco, CA},
  isbn      = {978-0-7803-9529-9},
  pages     = {219 -- 222},
  year      = {2006},
  language  = {en}
}
@article{Heuermann2008,
  author    = {Heuermann, Holger},
  title     = {Calibration of a Network Analyzer Without a Thru Connection for Nonlinear and Multiport Measurements},
  series = {IEEE Transactions on Microwave Theory and Techniques. 56 (2008), H. 11, 1},
  journal   = {IEEE Transactions on Microwave Theory and Techniques. 56 (2008), H. 11, 1},
  isbn      = {0018-9480},
  pages     = {2505 -- 2510},
  year      = {2008},
  language  = {en}
}
@article{Heuermann2008,
  author    = {Heuermann, Holger},
  title     = {Dual mode radio: A new tranceiver architecture for UWB and 60 GHz-applications},
  series = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  journal   = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  isbn      = {978-2-87487-008-8},
  pages     = {147 -- 150},
  year      = {2008},
  language  = {en}
}
@article{Heuermann2008,
  author    = {Heuermann, Holger},
  title     = {A 14 W SPST Switch with Four PIN-Diodes In a 0402-SMD-Package},
  isbn      = {978-3-8007-3086-5},
  pages     = {318 -- 321},
  year      = {2008},
  language  = {en}
}
@article{HeuermannBaumannFauthetal.1994,
  author    = {Heuermann, Holger and Baumann, F.-M. and Fauth, G. and Albert, M.},
  title     = {Results of Network Analyzer Measurements with Leakage Errors Corrected with the TMS-15-Term Procedure},
  series = {On-Line Moisture Analysis of Raw Coal},
  journal   = {On-Line Moisture Analysis of Raw Coal},
  pages     = {1361 -- 1364},
  year      = {1994},
  language  = {en}
}
@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{HeuermannErkens2006,
  author    = {Heuermann, Holger and Erkens, H.},
  title     = {Novel RF switch concepts for differential wireless communications frontends. Erkens, H.; Heuermann, H.},
  series = {IEEE Transactions on Microwave Theory and Techniques. 54 (2006), H. 6, Part 1},
  journal   = {IEEE Transactions on Microwave Theory and Techniques. 54 (2006), H. 6, Part 1},
  isbn      = {0018-9480},
  pages     = {2376 -- 2382},
  year      = {2006},
  language  = {en}
}
@article{HeuermannErkens2007,
  author    = {Heuermann, Holger and Erkens, H.},
  title     = {Mixed-Mode Chain Scattering Parameters: Theory and Verification},
  series = {IEEE Transactions on Microwave Theory and Techniques},
  volume    = {55},
  journal   = {IEEE Transactions on Microwave Theory and Techniques},
  number    = {8},
  publisher = {IEEE},
  address   = {New York},
  isbn      = {0018-9480},
  doi       = {10.1109/TMTT.2007.902587},
  pages     = {1704 -- 1708},
  year      = {2007},
  abstract  = {Chain scattering parameters or T-parameters are a useful tool for calculating cascaded two-ports. With the increasing importance of mixed-mode S-parameters, a need for converting the T-parameters from their unbalanced form into a balanced form emerges for suiting both common and differential mode waves, as well as the mode conversion. This paper presents the derivation of the equations for transformations between mixed-mode S- and T-parameters for a mixed-mode two-port. Although derived in a way very similar to monomode T-parameters, no simplifications were necessary. Measurement results exemplify the quality of the T-parameter transformation under real-life conditions.},
  language  = {en}
}
@article{HeuermannErkens2004,
  author    = {Heuermann, Holger and Erkens, Holger},
  title     = {Blocking structures for mixed-mode systems. / Erkens, Holger ; Heuermann, Holger},
  series = {Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association. Vol. 1},
  journal   = {Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association. Vol. 1},
  publisher = {Horizon House Publ.},
  address   = {London},
  isbn      = {1-580-53992-0},
  pages     = {297 -- 300},
  year      = {2004},
  language  = {en}
}
@inproceedings{HeuermannFinger2014,
  author    = {Heuermann, Holger and Finger, Torsten},
  title     = {2.45 GHz Plasma Powered Spark Plug by Thermal and EM-Optimization},
  pages     = {30 Folien},
  year      = {2014},
  language  = {en}
}
@incollection{HeuermannFinger2014,
  author    = {Heuermann, Holger and Finger, Torsten},
  title     = {Microwave Spark Plug for Very High-Pressure Conditions},
  series = {Ignition systems for gasoline engines},
  booktitle = {Ignition systems for gasoline engines},
  editor    = {G{\"u}nther, Michael},
  publisher = {DCM Druck},
  address   = {Meckenheim},
  pages     = {269 -- 282},
  year      = {2014},
  language  = {en}
}
@inproceedings{HeuermannHarzheimMuehmel2021,
  author    = {Heuermann, Holger and Harzheim, Thomas and M{\"u}hmel, Marc},
  title     = {A maritime harmonic radar search and rescue system using passive and active tags},
  series = {2020 17th European Radar Conference (EuRAD)},
  booktitle = {2020 17th European Radar Conference (EuRAD)},
  publisher = {IEEE},
  isbn      = {978-2-87487-061-3},
  doi       = {10.1109/EuRAD48048.2021.00030},
  pages     = {73 -- 76},
  year      = {2021},
  language  = {en}
}
@article{HeuermannHillebrandSadeghfam2008,
  author    = {Heuermann, Holger and Hillebrand, J{\"u}rgen and Sadeghfam, Arash},
  title     = {Novel Concept of a Digital SigmaDelta-PLL-Phase-Shift-Modulator / Hillebrand, J{\"u}rgen ; Sadeghfam, Arash ; Heuermann, Holger},
  isbn      = {978-3-8007-3086-5},
  pages     = {123 -- 126},
  year      = {2008},
  language  = {en}
}
@article{HeuermannHoltrup2009,
  author    = {Heuermann, Holger and Holtrup, Stephan},
  title     = {Fundamentals and ignition of a microplasma at 2.45 GHZ / Holtrup, Stephan ; Heuermann, Holger},
  series = {European Microwave Conference, 2009 : EuMC 2009 ; Sept. 29, 2009 - Oct. 1, 2009, Rome, Italy ; part of European Microwave Week (EuMW) / sponsored by EuMA, European Microwave Association ... Endorsed by IEEE},
  journal   = {European Microwave Conference, 2009 : EuMC 2009 ; Sept. 29, 2009 - Oct. 1, 2009, Rome, Italy ; part of European Microwave Week (EuMW) / sponsored by EuMA, European Microwave Association ... Endorsed by IEEE},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  isbn      = {978-1-4244-4748-0},
  pages     = {1607 -- 1609},
  year      = {2009},
  language  = {en}
}
@article{HeuermannIbrahim2008,
  author    = {Heuermann, Holger and Ibrahim, Irfan},
  title     = {Novel theory and architecture of a vector signal generator implemented with two PLLs / Ibrahim, Irfan ; Heuermann, Holger},
  series = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  journal   = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  isbn      = {978-2-87487-008-8},
  pages     = {85 -- 88},
  year      = {2008},
  language  = {en}
}
@article{HeuermannIbrahim2009,
  author    = {Heuermann, Holger and Ibrahim, Irfan},
  title     = {Improvements in the flicker noise reduction technique for osillator designs / Ibrahim, Irfan ; Heuermann, Holger},
  series = {European Microwave Conference, 2009 : EuMC 2009 ; Sept. 29, 2009 - Oct. 1, 2009, Rome, Italy ; part of European Microwave Week (EuMW) / sponsored by EuMA, European Microwave Association ... Endorsed by IEEE},
  journal   = {European Microwave Conference, 2009 : EuMC 2009 ; Sept. 29, 2009 - Oct. 1, 2009, Rome, Italy ; part of European Microwave Week (EuMW) / sponsored by EuMA, European Microwave Association ... Endorsed by IEEE},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  isbn      = {978-1-4244-4748-0},
  pages     = {1215 -- 1218},
  year      = {2009},
  language  = {en}
}
@article{HeuermannIbrahimHillebrand2007,
  author    = {Heuermann, Holger and Ibrahim, Irfan and Hillebrand, J.},
  title     = {Vector-Signal-Generator with Two ?'?'-PLL's / Ibrahim, I. ; Hillebrand, J. ; Heuermann, H.},
  series = {European Conference on Wireless Technologies, 2007. ECWT 2007 ; 8 - 10 October 2007 Munich, Germany},
  journal   = {European Conference on Wireless Technologies, 2007. ECWT 2007 ; 8 - 10 October 2007 Munich, Germany},
  isbn      = {978-2-87487-003-3},
  pages     = {1 -- 4},
  year      = {2007},
  language  = {en}
}