TY  - JOUR
A1  - Heuermann, Holger
A1  - Erkens, H.
T1  - Novel RF switch concepts for differential wireless communications frontends. Erkens, H.; Heuermann, H.
JF  - IEEE Transactions on Microwave Theory and Techniques. 54 (2006), H. 6, Part 1
Y1  - 2006
SN  - 0018-9480
SP  - 2376
EP  - 2382
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Erkens, H.
T1  - Mixed-Mode Chain Scattering Parameters: Theory and Verification
JF  - IEEE Transactions on Microwave Theory and Techniques
N2  - 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.
Y1  - 2007
SN  - 0018-9480
U6  - https://doi.org/10.1109/TMTT.2007.902587
VL  - 55
IS  - 8
SP  - 1704
EP  - 1708
PB  - IEEE
CY  - New York
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Erkens, H.
T1  - EVM- und BER-optimierter differentieller Einseitenbandmodulator / Erkens, H., Heuermann, H.
JF  - German Microwave Conference - GeMiC 2005 - : conference proceedings ; University of Ulm, April 5 - 7, 2005 [Elektronische Ressource] / ed.: Wolfgang Menzel. IMA, VDE ...
Y1  - 2005
SN  - 3-00-015423-X
N1  - German Microwave Conference <2005, Ulm>
PB  - Univ
CY  - Ulm
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Erkens, Holger
T1  - Blocking structures for mixed-mode systems. / Erkens, Holger ; Heuermann, Holger
JF  - 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
Y1  - 2004
SN  - 1-580-53992-0
N1  - European Microwave Conference ; (34, 2004, Amsterdam) ; European Microwave Week ; (7, 2004, Amsterdam)
SP  - 297
EP  - 300
PB  - Horizon House Publ.
CY  - London
ER  - 
TY  - CHAP
A1  - Heuermann, Holger
A1  - Finger, Torsten
T1  - 2.45 GHz Plasma Powered Spark Plug by Thermal and EM-Optimization
Y1  - 2014
N1  - Ansys High Frequency Simulation Conference - AHFSC 2014, Munich; 02/2014
ER  - 
TY  - CHAP
A1  - Heuermann, Holger
A1  - Finger, Torsten
ED  - Günther, Michael
T1  - Microwave Spark Plug for Very High-Pressure Conditions
T2  - Ignition systems for gasoline engines
Y1  - 2014
SP  - 269
EP  - 282
PB  - DCM Druck
CY  - Meckenheim
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Graf, W.
T1  - Vergleich mehrerer Naeherungsverfahren zur Berechnung des Wellenwiderstandes von Mikrostreifenleitungen mit experimentellen Ergebnissen
JF  - Kleinheubacher Berichte : Vorträge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 39. 1996 (1996)
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Graf, W.
T1  - Direkte on-wafer-Messung des Wellenwiderstandes einer Mikrostreifenleitung
JF  - Kleinheubacher Berichte : Vorträge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 41. 1998 (1998)
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Graf, W.
T1  - Direkte Messung der Dispersion des Wellenwiderstandes einer Mikrostreifenleitung
JF  - Kleinheubacher Berichte : Vorträge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 40. 1997 (1997)
Y1  - 1997
ER  - 
TY  - CHAP
A1  - Heuermann, Holger
A1  - Harzheim, Thomas
A1  - Mühmel, Marc
T1  - A maritime harmonic radar search and rescue system using passive and active tags
T2  - 2020 17th European Radar Conference (EuRAD)
N2  - This article 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 attached to life jackets and a rescue boat. This system was able to detect and range the active tags up to a range of 5800 m in tests on the Baltic Sea with an antenna input power of only 100 W. All electronic GHz components of the system, excluding the S-band power amplifier, were custom developed for this purpose. Special attention is given to the performance and conceptual differences between passive and active tags used in the system and integration with a maritime X-band navigation radar is demonstrated.
KW  - Harmonic Radar
KW  - Rescue System
KW  - Frequency Doubler
KW  - Transponder
KW  - Tag
Y1  - 2021
SN  - 978-2-87487-061-3
U6  - https://doi.org/10.1109/EuRAD48048.2021.00030
N1  - 17th European Radar Conference, 13th - 15th January 2021, Utrecht, Netherlands
SP  - 73
EP  - 76
PB  - IEEE
CY  - New York, NY
ER  -