Zobrazeno 1 - 10
of 35
pro vyhledávání: '"T. Sporkmann"'
Publikováno v:
27th European Microwave Conference and Exhibition.
A practical method to model HBTs including the self-heating effect has been developed and implemented in the utilized software package LIBRA as a simple test bench. This method is based on a practical thermal feedback circuit, which is combined with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94edc505843ac626d7f15f356dab6db8
https://doi.org/10.1109/eumc.1997.633709
https://doi.org/10.1109/eumc.1997.633709
Publikováno v:
1996 IEEE MTT-S International Microwave Symposium Digest.
In this paper a universal nonlinear measurement system is presented. The On-Wafer approach described here is commercially available and utilizes a modified vectorial network analyzer (Wiltron 360 B) and a special software package developed at the IMS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c96ac424a9dfe053a76eae3f29d3687
https://doi.org/10.1109/mwsym.1996.512170
https://doi.org/10.1109/mwsym.1996.512170
Publikováno v:
1994 IEEE MTT-S International Microwave Symposium Digest (Cat. No.94CH3389-4).
This paper reports on the on wafer evaluation up to 67 GHz of a complete library of coplanar elements for application in MMIC design. The elements under consideration were fabricated on GaAs and simulated utilising a quasi-static 3D-FD tool and measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68d440a2367333cb30cf19b65f1fe137
https://doi.org/10.1109/mwsym.1994.335585
https://doi.org/10.1109/mwsym.1994.335585
Publikováno v:
Third International Workshop on Integrated Nonlinear Microwave and Millimeterwave Circuits.
A novel approach is presented for a measurement system which is able to investigate the most relevant specifications of microwave circuits and components. This unique test stand is configured for on wafer measurements up to 60 GHz, but can also be us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccf270c92e890e93f136cc4c80bf35b2
https://doi.org/10.1109/inmmc.1994.512535
https://doi.org/10.1109/inmmc.1994.512535
Publikováno v:
Proceedings of 1995 IEEE MTT-S International Microwave Symposium.
Circulators can be used to separate transmit/receive (T/R) signals and for two-port tuners. Conventional ferrite devices are not applicable for MMICs. Two new types of electronic circulators are presented in this paper covering the frequency range fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ac273081b494b088533a6ded6b885ab
https://doi.org/10.1109/mwsym.1995.405907
https://doi.org/10.1109/mwsym.1995.405907
Publikováno v:
Follmann, R. ; Tempel, R. ; Herrmann, J. ; Sporkmann, T. ; Wolff, I. (1998) Accurate new scaling routines for any table/function based FET model including temperature and noise behaviour. In: Gallium Arsenide Applications Symposium. GAAS 1998, 5-6 October 1998, Amsterdam, The Netherlands.
In this paper we present new scaling routines for any table/function based nonlinear FET model. These measurement based routines are very accurate and can also be used to calculate temperature behaviour. Also the prediction of noise behaviour is poss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d0f98ac8c98cd4bc9b45d8cf9e55fac
https://doi.org/10.1109/euma.1998.338132
https://doi.org/10.1109/euma.1998.338132
Publikováno v:
27th European Microwave Conference, 1997.
IN this paper a new spline based nonlinear transistor model for MESFETs and HEMTs is described. A bias dependent small signal equivalent circuit has been developed, as well as the corresponding static and large signal equivalent circuit. The linear c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a2d91b93cdcbd9985ba7141210e9ec5
https://doi.org/10.1109/euma.1997.337982
https://doi.org/10.1109/euma.1997.337982
Publikováno v:
24th European Microwave Conference, 1994.
A designer of up-converters for mm-wave frequencies faces a problem, in that the LO frequency and RF frequency are spaced very close together. Therefore, the suppression of the LO signal is not automatically achieved with the matching networks. In or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46bfc60869d9fc4a0d8ac2402ce6340a
https://doi.org/10.1109/euma.1994.337216
https://doi.org/10.1109/euma.1994.337216
Publikováno v:
24th European Microwave Conference, 1994.
The IMST has recently built up a library with recently more than 18 coplanar elements for CAD applications (2), (3). The theory of the parametric models is based on a quasi static 3D Finite Difference formulation (1). Naghed also introduced in (1) th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4823c4696d2566b088a942c388287ea1
https://doi.org/10.1109/euma.1994.337217
https://doi.org/10.1109/euma.1994.337217
Publikováno v:
24th European Microwave Conference, 1994.
New types of active three ports, based on conventional foundry devices, are presented. Utilising these new devices, active power combiners, dividers and switches may be realised. The modelling of these new type of devices is simply possible by networ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71e0d4acfa841a298f792dbb70bc49e1
https://doi.org/10.1109/euma.1994.337427
https://doi.org/10.1109/euma.1994.337427