Relevant bibliographies by topics / Load-pull

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Load-pull'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 March 2023

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Journal articles on the topic "Load-pull"

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Hashmi, Mohammad, Fadhel Ghannouchi, Paul Tasker, and Karun Rawat. "Highly Reflective Load-Pull." IEEE Microwave Magazine 12, no. 4 (June 2011): 96–107. http://dx.doi.org/10.1109/mmm.2011.940595.

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Fregonese, Sebastien, Magali de Matos, David Mele, Cristell Maneux, Henri Happy, and Thomas Zimmer. "Source-Pull and Load-Pull Characterization of Graphene FET." IEEE Journal of the Electron Devices Society 3, no. 1 (January 2015): 49–53. http://dx.doi.org/10.1109/jeds.2014.2360408.

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Ortega-Gonzalez, F. J. "Load–Pull Wideband Class-E Amplifier." IEEE Microwave and Wireless Components Letters 17, no. 3 (March 2007): 235–37. http://dx.doi.org/10.1109/lmwc.2006.890504.

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Jäger, Matthias, and Alwin Luttmann. "Musculoskeletal load of push-pull tasks." International Journal of Industrial Ergonomics 37, no. 11-12 (November 2007): 823–24. http://dx.doi.org/10.1016/j.ergon.2007.07.001.

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Hashmi, M. S., A. L. Clarke, S. P. Woodington, J. Lees, J. Benedikt, and P. J. Tasker. "An Accurate Calibrate-Able Multiharmonic Active Load–Pull System Based on the Envelope Load–Pull Concept." IEEE Transactions on Microwave Theory and Techniques 58, no. 3 (March 2010): 656–64. http://dx.doi.org/10.1109/tmtt.2010.2040403.

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Ghannouchi, F. M., and R. G. Bosisio. "Source-pull/load-pull oscillator measurements at microwave/MM wave frequencies." IEEE Transactions on Instrumentation and Measurement 41, no. 1 (1992): 32–35. http://dx.doi.org/10.1109/19.126626.

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Shao, Zhu Lei, and San Tang. "Design and Analysis of Push-Pull Switching Power Supply on PSpice." Applied Mechanics and Materials 336-338 (July 2013): 1186–89. http://dx.doi.org/10.4028/www.scientific.net/amm.336-338.1186.

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Aiming at the problem of switching power supply stable output, a push-pull switching power supply was designed. the switching frequency is 100kHZ and the output voltage is 5V. System model of the push-pull switching power supply is established on PSpice, and research on the output performance of the push-pull switching power supply. By the parameter sweep analysis of load, the push-pull switching power supply can stabilize output in full load and light load conditions, and load regulation rate comply with the design requirements.
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Yu, Shuisheng, Leilei Niu, and Jin Chen. "Experimental and Numerical Studies on Bond Quality of Fully Grouted Rockbolt under Confining Pressure and Pull-Out Load." Shock and Vibration 2022 (August 25, 2022): 1–12. http://dx.doi.org/10.1155/2022/7012510.

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In mining engineering, the in situ stress changes with the stress induced by the surrounding mining activities. It positively or negatively affects the propagation of ultrasonic guided waves in rockbolts. Therefore, the effect of in situ stress in rockbolt support was determined by applying confining pressure and pull-out load in a laboratory test and using ultrasonic guided waves to test the rockbolt. Furthermore, the propagation law of ultrasonic guided waves and bond quality of the rockbolt under the interaction of the pull-out load and confining pressure were studied. Numerical simulations were performed to deduce the guided wave propagation process in grouted systems, and the influencing mechanism of the pull-out load and confining pressure on the guided wave propagation was discussed. The laboratory test and numerical simulation results show that the confining pressure weakens the guided wave propagation without pull-out load. Under the same pull-out load, the guided wave propagation gradually strengthens with increasing confining pressure. A larger confining pressure weakens the weakening effect of the pull-out load and suppresses the discreteness of the guided wave propagation. Under the same confining pressure, the guided waves did not diffract well into the cement mortar and concrete with increasing pull-out load, the confining pressure restricted the radial vibration of the guided waves, and the guided wave propagation law weakened. Thus, the pull-out load plays a weakening role in the propagation law of ultrasonic guided waves.
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Poluri, Nagaditya, and Maria Merlyne De Souza. "Designing a Broadband Amplifier Without Load–Pull." IEEE Microwave and Wireless Components Letters 31, no. 6 (June 2021): 593–96. http://dx.doi.org/10.1109/lmwc.2021.3061804.

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Alobaidi, I. A., D. J. Hoare, and G. S. Ghataora. "Load Transfer Mechanism in Pull-Out Tests." Geosynthetics International 4, no. 5 (January 1997): 509–21. http://dx.doi.org/10.1680/gein.4.0104.

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Dissertations / Theses on the topic "Load-pull"

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Saini, Randeep. "Intelligence driven load-pull measurement strategies." Thesis, Cardiff University, 2013. http://orca.cf.ac.uk/51789/.

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The objective of this thesis is to provide improved load-pull measurement strategies based on an open-loop active load pull measurement system. A review of the evolution of non-linear measurement systems as well as behavioural model generation approaches has been presented. An intelligence driven active load-pull system has been presented in this thesis, based on deriving local PHD models to aid the prediction of the desired active signal in order to achieve a target reflection coefficient. The algorithm proved to be effective in reducing the number of iterations in an open-loop active load-pull system and thus improving the utilisation efficiency. A non-linear measurement approach suitable for wafer mapping and technology screening applications has also been presented as an application of this new algorithm. In this thesis, it has also been shown how the Cardiff Behavioural model is effective in its ability to interpolate or extrapolate non-linear measurement data and thereby improve the quality of measurement data and speed of measurement systems. This investigation was carried out in two stages; fundamental interpolation testing and harmonic interpolation and extrapolation testing.
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Woodington, Simon Philip. "Behavioural model analysis of active harmonic load-pull measurements." Thesis, Cardiff University, 2011. http://orca.cf.ac.uk/13000/.

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In this thesis, an investigation of the use of the poly-harmonic distortion model and related techniques is conducted, and applied to model fundamental and harmonic load-pull. Contained within the thesis is a detailed review of the development of the poly-harmonic distortion model and related methods. This thesis shows that although the poly-harmonic distortion model improves on the prediction of fundamental load-pull, over Hot-S-Parameters it still has a limited range of application. To address this observation, higher order models have been investigated along with Fourier methods allowing rapid extraction of the behavioral models. These methods allow conclusions to be drawn on the accuracy of the extracted models, by the direct observation of the magnitudes of the model coefficients. The thesis is concluded with the presentation of the results from third party, using a model extracted using the methods discussed in this thesis. The Model is of a 0.5W GaAs pHEMT at 9 GHz and is used within the design of a Class-J MMIC amplifier.
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Pereira, Alison Willian. "Fully-automated load-pull system based on mechanical tuners." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17027.

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Mestrado em Engenharia Electrónica e Telecomunicações
Por razões de potência, linearidade e e ciência o ampli cador é um componente limitador de performance em qualquer tipo de aplicações relacionadas com estações base de voz e dados, motivando a indústria das telecomunica ções a investir em sistemas capazes de ajudar o projetista de Ampli cador de Potência (AP) a obter o máximo deste elemento ativo. O sistema de 'load-pull' é uma ferramenta essencial para auxiliar o projeto de ampli cadores de potência, permitindo determinar as condições ideais de impedância que maximizam a sua performance. Esta dissertação insere-se na área de caracterização e projeto de AP, em rádio frequência e visa a concepção, implementação e validação de um sitema automático de 'load-pull' passivo. Neste trabalho, realizou-se um estudo sobre os mais diversos tipos de sistemas de 'load-pull' utilizados na caracterização de transistores de alta potência. De modo a cumprir a nalidade desta dissertação, construí-se um sistema passivo automatizado de 'load-pull' capaz de lidar com potência 250W forma de onda contínua (CW) e 2.5 kWde potência de pico em relação a envolvente de modulação (PEP), onde a repetibilidade da malha de saída deste sistema é -60dB a uma frequência correspondente de 1.8GHz, garantindo uma boa precisão das impedâncias apresentadas ao transístor de microondas.
Due to power, linearity and e ciency reasons the PA is the performance limiting component in any state-of-the-art mobile voice and data base station, motivating the telecommunications industry to invest in systems capable of helping the designer of PA to get the most of the active devices. The load-pull system is an essential tool to assist the design of PA, allowing to determine the optimum matching conditions that maximizes the PA performance parameters. This dissertation ts in the area of radio frequency characterization and PA design, aiming the artful conception, implementation and validation of an automated passive load-pull system. In this work a study was also performed on the most diverse types of load-pull systems that are used in the characterization of high power transistors. In order to ful ll the purpose of this dissertation, an automated load-pull system was built, being capable to handle 250W of power in continuous wave (CW) and 2.5kW in peak-to-envelope (PEP), where the system repeatability of its output network is -60dB at a frequency of 1.8GHz, granting a good accuracy of impedances presented to the microwave transistor.
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Somasundaram, Meena Sivalingam. "Pulsed power and load-pull measurements for microwave transistors." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0003293.

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Leloir, Sébastien. "Etude, conception et réalisation d'un banc de caractérisation " Source-Pull / Load-Pull multiharmonique " pour applications radars." Rouen, 2005. http://www.theses.fr/2005ROUES010.

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Ce mémoire présente l'étude, la conception et la réalisation d'un banc de mesure Source-Pull / Load-Pull multiharmonique pour caractériser de manière fonctionnelle les composants microondes de puissance entrant dans la composition de radars. Le banc est capable d'effectuer, en mode CW ou impulsionnel, une synthèse d'impédances à la fréquence fondamentale et aux deux premières harmoniques, et de reconstituer, en temps réel, les formes d'ondes temporelles aux accès du composant. Parfaitement adapté aux besoins de Thales Air Defence, cet outil permettra à terme : de concevoir les circuits hyperfréquences non-linéaires optimisés en puissance ajoutée maximum et/ou en rendement en puissance ; de valider ou d'améliorer les modèles électrothermiques de composants non-linéaires utilisés dans les logiciels de simulation. Le système de caractérisation mis en œuvre est notamment indépendant de la fréquence de travail, de la nature du composant et des niveaux des puissances. Afin de montrer l'intérêt de son exploitation dans le domaine des radars, une première caractérisation a été réalisée sur un transistor type HBT
This study presents the investigation, the design and the realization of a Source-Pull / Load-Pull multiharmonic bench able to experimentally characterize microwave power devices entering the radar's line up. In CW or pulsed mode, the bench is able to make a synthesis of impedances at the fundamental frequency and at the two first harmonics, and is also able to reconstitute, in real time, the temporal waveforms at both components ports. Perfectly adapted to the needs of Thales Air Defence, this tool will allow in long term : to design the microwave non-linear circuit optimised with power added, power efficiency; to validate non-linear models of devices used in the simulation softwares. The characterization system implemented is independent of the work frequency, the component nature and the power levels. In order to show the interest of its exploitation in radar's domain, a first characterization has been realized on HBT transistor
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Shishido, Reid Tadashi. "Load-pull measurement and simulation on indium phosphide heterojunction biopolar transistors." Thesis, University of Hawaii at Manoa, 2003. http://hdl.handle.net/10125/6987.

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Indium-phosphide (InP) based amplifiers have recently attracted a great deal of attention due to their superior power and efficiency characteristics for high-performance telecommunications. A state-of-the-art InP heterojunction bipolar transistor was characterized using an automated load-pull measurement system to determine the optimum load conditions for future applications at 10 GHz. These measurements yielded power-added efficiencies ranging from 54-63% for Class A to Class C/E bias conditions. Simulations using a SPICE model confirmed the accuracy of the model at 10 GHz with simulated efficiencies between 44-58%.
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Bunz, Bernd. "Entwurfsverfahren von breitbandigen Frequenzvervielfachern für ein multiharmonisches Source- und Load-pull-Messsystem." Kassel : Kassel Univ. Press, 2004. http://deposit.d-nb.de/cgi-bin/dokserv?idn=973052775.

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Gebara, Edward. "Cryogenic on-wafer microwave load-pull power measurements and device performance analysis." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/19601.

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Hashim, Shaiful Jahari. "Wideband active envelope load-pull for robust power amplifier and transistor characterisation." Thesis, Cardiff University, 2010. http://orca.cf.ac.uk/54181/.

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The advent of fourth generation (4G) wireless communication with available modulation bandwidth ranging from 1 MHz to 20 MHz is starting to emerge. The linear modulation technique being employed means that the power amplifiers that support the standards need to have high degree of linearity. By nature, however, all power amplifiers are non-linear. Load-pull measurement system provides anindispensable non-linear tool for the characterization of power amplifier and transistor for linearity enhancement. Conventional passive or active load-pull has delay problem that get worse as the modulation frequency is increased beyond few MHz. Furthermore in order to provide robust non-linear measurement, load-pull system needs to provide bandwidth at least five times the modulation bandwidth by including the fifth-order inter-modulation (IMD5). This thesis presents, for the first time, delay compensation on the unique active envelope load-pull architecture providing constant impedance for bandwidth up to 20 MHz. In doing so, it provides a superior load-pull measurement and also the ability to directly control in-band impedances. Artificial variations imposed on the in-band impedances offer further insight on power amplifier and transistor behaviours under wideband multi-tone stimulus.
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Herceg, Erik. "Výkonový zesilovač pro pásmo 435MHz s vysokou účinností." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-316446.

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This diploma thesis is focused on design of high frequency power amplifiers in UHF band, specifically at 435 MHz. Amplifiers are designed in different classes of operation. The thesis deals with the comparison of main parameters in each class of operation, the most important parameter is effeciency. The amplifying part is unipolar transistor which is working in Single-stage mode. The results were simulated in Advanced Design Systems Software.
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Books on the topic "Load-pull"

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. Load-Pull Techniques with Applications to Power Amplifier Design. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4461-5.

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Ghannouchi, Fadhel M. Load-Pull Techniques with Applications to Power Amplifier Design. Dordrecht: Springer Netherlands, 2013.

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Banerjee, Amal. Practical RF Amplifier Design and Performance Optimization with SPICE and Load- and Source-pull Techniques. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62512-2.

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. Load-Pull Techniques with Applications to Power Amplifier Design. Springer, 2012.

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. Load-Pull Techniques with Applications to Power Amplifier Design. Springer, 2014.

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Sevic, John F. Load-Pull Method of RF and Microwave Power Amplifier Design. Wiley & Sons, Incorporated, John, 2020.

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Sevic, John F. Load-Pull Method of RF and Microwave Power Amplifier Design. Wiley & Sons, Limited, John, 2020.

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Sevic, John F. Load-Pull Method of RF and Microwave Power Amplifier Design. Wiley & Sons, Incorporated, John, 2020.

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Banerjee, Amal. Practical RF Amplifier Design and Performance Optimization with SPICE and Load- and Source-Pull Techniques. Springer International Publishing AG, 2021.

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Book chapters on the topic "Load-pull"

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. "Passive Load-Pull Systems." In Load-Pull Techniques with Applications to Power Amplifier Design, 29–54. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4461-5_2.

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. "Active Load-Pull Systems." In Load-Pull Techniques with Applications to Power Amplifier Design, 55–85. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4461-5_3.

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. "Envelope Load-Pull System." In Load-Pull Techniques with Applications to Power Amplifier Design, 139–62. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4461-5_6.

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. "High-Power Load-Pull Systems." In Load-Pull Techniques with Applications to Power Amplifier Design, 113–38. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4461-5_5.

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. "Six-Port Based Load-Pull System." In Load-Pull Techniques with Applications to Power Amplifier Design, 87–111. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4461-5_4.

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. "Fundamentals." In Load-Pull Techniques with Applications to Power Amplifier Design, 1–27. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4461-5_1.

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. "Waveform Measurement and Engineering." In Load-Pull Techniques with Applications to Power Amplifier Design, 163–89. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4461-5_7.

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Ghannouchi, Fadhel M., and Mohammad S. Hashmi. "Advanced Configurations and Applications." In Load-Pull Techniques with Applications to Power Amplifier Design, 191–224. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4461-5_8.

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Ožbolt, J., R. Eligehausen, and H. W. Reinhardt. "Size effect on the concrete cone pull-out load." In Fracture Scaling, 391–404. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4659-3_22.

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Tran, Nhu Q., Loc T. P. Nguyen, Tri M. Do, and Quan M. Hoang. "Load-Pull Methodology to Characterize GaN High-Electron-Mobility Transistors (HEMTs)." In Intelligent Computing & Optimization, 1078–85. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-19958-5_101.

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Conference papers on the topic "Load-pull"

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Bouisse, Gerard, and Julien Gonzalez. "Load Pull Bias Tee." In 2019 92nd ARFTG Microwave Measurement Symposium (ARFTG). IEEE, 2019. http://dx.doi.org/10.1109/arftg.2019.8637238.

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Mayer, M., H. Arthaber, G. Magerl, D. Kother, J. Lees, J. Benedikt, and P. J. Tasker. "Advanced load pull systems." In IET Seminar on High Efficiency Power Amplifier Design for Next Generation Wireless Applications. IEE, 2006. http://dx.doi.org/10.1049/ic:20060002.

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Vanaverbeke, F., K. Vaesen, D. Xiao, L. Pauwels, W. De Raedt, M. Germain, S. Degroote, J. Das, J. Derluyn, and D. Schreurs. "A load-pull wafer-mapper." In 2008 71st ARFTG Microwave Measurement Conference. IEEE, 2008. http://dx.doi.org/10.1109/arftg.2008.4633315.

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Simpson, G. "Hybrid active tuning load pull." In 2011 77th ARFTG Microwave Measurement Conference (ARFTG). IEEE, 2011. http://dx.doi.org/10.1109/arftg77.2011.6034576.

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Vanaverbeke, F., K. Vaesen, D. Xiao, L. Pauwels, W. De Raedt, M. Germain, S. Degroote, J. Das, J. Derluyn, and D. Schreurs. "A load-pull wafer-mapper." In 2008 IEEE MTT-S International Microwave Symposium Digest - MTT 2008. IEEE, 2008. http://dx.doi.org/10.1109/mwsym.2008.4633315.

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Bridges, Daren, Michael R. DeHaan, Michael S. LaBelle, and Sam Pritchett. "Load Pull Templates: A Method For Benchmarking Nonlinear Device Models With Load Pull Measurements." In 45th ARFTG Conference Digest. IEEE, 1995. http://dx.doi.org/10.1109/arftg.1995.327099.

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Hoversten, John, Michael Roberg, and Zoya Popovic. "Harmonic load pull of high-power microwave devices using fundamental-only load pull tuners." In 2010 75th ARFTG Microwave Measurement Conference. IEEE, 2010. http://dx.doi.org/10.1109/arftg.2010.5496324.

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Gasseling, Tony, Emmanuel Gatard, Christophe Charbonniaud, and Alain Xiong. "Assets of source pull for NVNA based load pull measurements." In 2012 79th ARFTG Microwave Measurement Conference (ARFTG). IEEE, 2012. http://dx.doi.org/10.1109/arftg79.2012.6291177.

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Noori, B., P. Hart, J. Wood, P. Aaen, M. Guyonnet, M. Lefevre, J. Pla, and J. Jones. "Load-Pull Measurements Using Modulated Signals." In 2006 European Microwave Conference. IEEE, 2006. http://dx.doi.org/10.1109/eumc.2006.281404.

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Alimohammadi, Yashar, Eigo Kuwata, Xuan Liu, Thoalfukar Husseini, James Bell, Lei Wu, Paul Tasker, and Johannes Benedikt. "Pulse Profiling Active Load Pull Measurements." In 2020 IEEE/MTT-S International Microwave Symposium (IMS). IEEE, 2020. http://dx.doi.org/10.1109/ims30576.2020.9223989.

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Reports on the topic "Load-pull"

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Huebschman, Benjamin D. Calibration and Verification Procedures at ARL for the Focus Microwaves Load Pull System. Fort Belvoir, VA: Defense Technical Information Center, November 2006. http://dx.doi.org/10.21236/ada458331.

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PERFORMANCE OF STUD SHEAR CONNECTIONS IN COMPOSITE SLABS WITH VARIOUS CONFIGURATIONS (ICASS’2020). The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.351.

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This research project aims to examine the structural behaviour of stud shear connections with both solid concrete slabs and composite slabs under standard and modified push-out tests. A total of 27 push-out tests were carried out to provide test data of typical stud shear connections. It should be noted that the modified push-out tests were proposed in which the stud shear connections were subjected to combined shear and pull-out forces. Advanced finite element models using ABAQUS have also been established and calibrated carefully against the test data. Systematic numerical investigations are conducted to provide new understandings on load transfer mechanisms of these stud shear connections. Moreover, a comprehensive parametric study is carried out using various material properties of the concrete and various geometry of the profiled steel decking. A configuration parameter ηd and a reduction factor ηt are proposed for use in conjunction with the reduction factor kd given in EN 1994-1- 1 to incorporate the effects of installation positions of headed shear stud, trough widths of profiled decks, and presence of significant pull-out forces.
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