Zobrazeno 1 - 10
of 27
pro vyhledávání: '"D. Gunyan"'
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 54:3182-3190
Advances in microwave instrumentation now make it feasible to accurately measure not only the magnitude spectrum, but also the phase spectrum of wide-bandwidth signals. In a practical measurement, the spectrum is measured over a finite window of time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bf8ec98ca30828b75cd787e09509aa8
https://doi.org/10.1109/tmtt.2006.879136
https://doi.org/10.1109/tmtt.2006.879136
Publikováno v:
2009 73rd ARFTG Microwave Measurement Conference.
X-parameters are the mathematically correct supersets of S-parameters valid for nonlinear (and linear) components under large-signal (and small-signal) conditions. This paper compares a PHD model generated from arbitrary load-dependent measured X-par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3aa5e425e9a5b7ca3ce7ec0c1dd129a
https://doi.org/10.1109/arftg.2009.5278063
https://doi.org/10.1109/arftg.2009.5278063
Autor:
Jason Horn, Loren C. Betts, Roger D. Pollard, Chad Gillease, David E. Root, D. Gunyan, Jan Verspecht
Publikováno v:
2009 IEEE MTT-S International Microwave Symposium Digest.
A new unified theory and methodology is presented to characterize and model long-term memory effects of microwave components by extending the Poly-Harmonic Distortion (PHD) Model to include dynamics that are identified from pulsed envelope X-paramete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79c845a8865cc23a233e15299dbe4c02
https://doi.org/10.1109/mwsym.2009.5165803
https://doi.org/10.1109/mwsym.2009.5165803
Publikováno v:
2008 72nd ARFTG Microwave Measurement Symposium.
X-parameters are the mathematically correct supersets of S-parameters valid for nonlinear (and linear) components under large-signal (and small-signal) conditions. This work presents an automated application combining a nonlinear vector network analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11a4b23dc4d4d5a75252ae5d6c7e43f7
https://doi.org/10.1109/arftg.2008.4804301
https://doi.org/10.1109/arftg.2008.4804301
Publikováno v:
2008 European Microwave Integrated Circuit Conference.
X-parameters, also referred to as the parameters of the Poly-Harmonic Distortion (PHD) nonlinear behavioral model, have been introduced as the natural extension of S-parameters to nonlinear devices under large-signal drive [1]-[3]. This paper describ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4864b3581f4c0f84c1019663a30603aa
https://doi.org/10.1109/emicc.2008.4772247
https://doi.org/10.1109/emicc.2008.4772247
Autor:
Yee-Ping Teoh, D. Gunyan
Publikováno v:
2008 IEEE MTT-S International Microwave Symposium Digest.
This paper presents unique characteristics of a new active harmonic phase standard (HPS) for use in phase calibration of nonlinear vector network analyzers (NVNAs). The phase and amplitude characteristics are measured at various input powers, fundame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c48c41956642d0cfb46262e94d167ca
https://doi.org/10.1109/mwsym.2008.4633334
https://doi.org/10.1109/mwsym.2008.4633334
Publikováno v:
2008 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems.
Predictable measurement-based large-signal design has been demonstrated with a unique set of interoperable commercially available nonlinear technologies for measurement, simulation, and design of nonlinear components. The new NVNA instrument, automat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::443707d614579c361c8c098c6b561f53
https://doi.org/10.1109/comcas.2008.4562819
https://doi.org/10.1109/comcas.2008.4562819
Publikováno v:
2007 IEEE/MTT-S International Microwave Symposium.
A large-signal FET model based on artificial neural networks (ANNs) is extended for rigorous intrinsic drain-source symmetry and robust extrapolation beyond the range of training data. Enhanced ANN architectures and training algorithms constrain the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::868582a33f1e79e1e09f1bd7c8d6d655
https://doi.org/10.1109/mwsym.2007.380244
https://doi.org/10.1109/mwsym.2007.380244
Publikováno v:
2007 IEEE/MTT-S International Microwave Symposium.
The PHD nonlinear behavioral model is extended to handle multiple large tones at an arbitrary number of ports, and enhanced for dynamic long-term memory. New capabilities are exemplified by an amplifier model, derived from large-signal network analyz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2836a4f3145539350aca8de8300d78fc
https://doi.org/10.1109/mwsym.2007.380180
https://doi.org/10.1109/mwsym.2007.380180
Publikováno v:
2006 IEEE MTT-S International Microwave Symposium Digest.
A new measurement-based FET model is presented which combines non-quasi-static dynamics formulated with constitutive relations derived using adjoint and conventional artificial neural networks (ANN). The new model features smoother constitutive relat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93c6621171ec68125f9701c403f35e87
https://doi.org/10.1109/mwsym.2006.249594
https://doi.org/10.1109/mwsym.2006.249594