Letteratura scientifica selezionata sul tema "Amplifiers, Radio frequency"

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Articoli di riviste sul tema "Amplifiers, Radio frequency"

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Mück, Michael, and Robert McDermott. "Radio-frequency amplifiers based on dc SQUIDs." Superconductor Science and Technology 23, no. 9 (July 19, 2010): 093001. http://dx.doi.org/10.1088/0953-2048/23/9/093001.

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Sajedin, Maryam, I. T. E. Elfergani, Jonathan Rodriguez, Raed Abd-Alhameed, and Monica Fernandez Barciela. "A Survey on RF and Microwave Doherty Power Amplifier for Mobile Handset Applications." Electronics 8, no. 6 (June 25, 2019): 717. http://dx.doi.org/10.3390/electronics8060717.

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Abstract (sommario):
This survey addresses the cutting-edge load modulation microwave and radio frequency power amplifiers for next-generation wireless communication standards. The basic operational principle of the Doherty amplifier and its defective behavior that has been originated by transistor characteristics will be presented. Moreover, advance design architectures for enhancing the Doherty power amplifier’s performance in terms of higher efficiency and wider bandwidth characteristics, as well as the compact design techniques of Doherty amplifier that meets the requirements of legacy 5G handset applications,
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Togawa, Kazuaki, Hirokazu Maesaka, Reichiro Kobana, and Hitoshi Tanaka. "Frequency-segmented power amplification using multi-band radio frequency amplifiers to produce a high-voltage pulse." Review of Scientific Instruments 93, no. 7 (July 1, 2022): 073304. http://dx.doi.org/10.1063/5.0093915.

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A method of frequency-segmented power amplification using multiband radio frequency (RF) amplifiers was proposed to generate stable and arbitrary high-voltage pulses. The concept behind this method is that an arbitrary pulse with a specified duration and sharp edges can be reconstructed using only several frequencies, and most of the power is concentrated on the fundamental frequency. The high-voltage pulse can, therefore, be obtained by amplifying each segmented frequency and then combining it with the RF power combiners. To correct the frequency-dependent group delays and gain of the amplifi
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El Misilmani, H. M., M. Y. Abou-Shahine, Y. Nasser, and K. Y. Kabalan. "Recent Advances on Radio-Frequency Design in Cognitive Radio." International Journal of Antennas and Propagation 2016 (2016): 1–16. http://dx.doi.org/10.1155/2016/9878475.

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With the growth of mobile data applications, the spectrum allocation is becoming very scarce. To ease congestion and boost speeds, cognitive radio (CR) is currently seen as a major solution and expected to be the key player in the new wireless technologies. In this paper, we will start by introducing the cognitive radio systems, followed by exploring the challenges in designing RF engine, along with an investigation of its antennas, amplifiers, oscillators, and the components that are expected to operate over a wide range of frequencies.
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Wiegner, Dirk, Gerhard Luz, Patrick Jüschke, Robin Machinal, Thomas Merk, Ulrich Seyfried, Wolfgang Templ, Andreas Pascht, Rüdiger Quay, and Friedbert Van Raay. "AlGaN/GaN-based power amplifiers for mobile radio applications: a review from the system supplier's perspective." International Journal of Microwave and Wireless Technologies 2, no. 1 (February 2010): 95–104. http://dx.doi.org/10.1017/s175907871000022x.

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This paper gives a summarized overview on the progress and achievements on AlGaN/GaN high electron mobility transistors (HEMT)-based power amplifiers (PAs) for mobile radio applications which have been achieved within two national funded German projects during a period of six years. Starting with a first 34 dBm (2.5 W, peak) amplifier in 2003 the impressive progress toward highly efficient S-band mobile radio PAs with up to >50 dBm (100 W) peak output power is described by means of some selected single- and multiband amplifier demonstrators. This progress has been mainly enabled by clear pr
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Fiori, F., and P. S. Crovetti. "Nonlinear effects of radio-frequency interference in operational amplifiers." IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications 49, no. 3 (March 2002): 367–72. http://dx.doi.org/10.1109/81.989173.

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Magnuski, Mirosław, Maciej Surma, and Dariusz Wójcik. "Broadband Input Block of Radio Receiver for Software-Defined Radio Devices." International Journal of Electronics and Telecommunications 60, no. 3 (October 28, 2014): 233–38. http://dx.doi.org/10.2478/eletel-2014-0029.

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Abstract In the paper a cost-effective input block of the SDR receiver for 0.9 — 2.4 GHz frequency band built of capacitive-tuned selective amplifier and broadband Vivaldi antenna is presented. The applied selective amplifier consists of three identical sections of tunable filters and two stages of monolithic broadband amplifiers. The single filter section proposed by the authors, due to its ability to absorb parasitic inductances of varicap diodes, simplifies usage of encapsulated varicap diodes in design of tunable in broad band selective filters dedicated to input stages of the receivers. M
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Watkins, Gavin. "Inductor‐less envelope modulated radio frequency power amplifier using stacked amplifiers and envelope shaping." IET Microwaves, Antennas & Propagation 7, no. 15 (December 2013): 1215–20. http://dx.doi.org/10.1049/iet-map.2013.0328.

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Mabrok, Mussa, Zahriladha Zakaria, and Nasrullah Saifullah. "Design of Wide-band Power Amplifier based on Power Combiner Technique with Low Intermodulation Distortion." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 5 (October 1, 2018): 3504. http://dx.doi.org/10.11591/ijece.v8i5.pp3504-3511.

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RF power amplifiers are one of challenging blocks in designing radio frequency transceivers, this is due to non-linearity behavior of power amplifiers that leads to inter-modulation distortion. This paper presents the design of wide-band power amplifier which combined with parallel coupled line band pass filter at the input and output of power amplifier to allow the only required frequency band to pass through the power amplifier. Class-A topology and ATF-511P8 transistor are used in this design. Advanced Design System software used as a simulation tool to simulate the designed wide-band power
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Silveira, Daniel D., Thiago V. N. Coelho, and Alexandre Bessa dos Santos. "Evolution of Black-Box Models Based on Volterra Series." Journal of Applied Mathematics 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/638978.

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This paper presents a historical review of the many behavioral models actually used to model radio frequency power amplifiers and a new classification of these behavioral models. It also discusses the evolution of these models, from a single polynomial to multirate Volterra models, presenting equations and estimation methods. New trends in RF power amplifier behavioral modeling are suggested.
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Tesi sul tema "Amplifiers, Radio frequency"

1

Kunselman, Gary L. "Radio frequency power amplifiers for portable communication systems." Thesis, Virginia Tech, 1992. http://hdl.handle.net/10919/41493.

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<p>Portable communication systems require, in part, high-efficiency radio frequency power amplifiers (RF PA) if battery lifetime is to be conserved. Conventional amplifier classifications and definitions are presented in a unified and concise format. The Bipolar Junction Transistor (BJT) and Metal-Semiconductor Field Effect Transistor (MESFET) are evaluated as active devices in high-efficiency RF PA designs. Two amplifier classes (class CE and class F) meet the system requirements of an 850 MHz operating frequency, a power output of 3 W, a battery supply voltage of 9 Vdc, and a sinusoidal-type
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Cui, Xian. "Efficient radio frequency power amplifiers for wireless communications." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1195652135.

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Fedorenko, Pavlo. "Phase distortion in envelope elimination and restoration radio frequency power amplifiers." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/34822.

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The objective of this research is to analyze and improve linearity of envelope elimination and restoration (EER) radio frequency (RF) power amplifiers. Envelope elimination and restoration was compared to other efficiency enhancement techniques and determined to likely be the most suitable solution for implementation of multimode, multiband portable RF transmitters. Distortion, stemming from dynamic power-supply modulation of RF transistors in EER RF power amplifiers was identified as one of the key challenges to the development of commercially viable EER transmitters. This dissertation presen
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Kim, Hyungwook. "CMOS radio-frequency power amplifiers for multi-standard wireless communications." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/44786.

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The development of multi-standard wireless communication systems with low cost and high integration is continuously requested and accompanied by the explosive growth of the wireless communication market. Although CMOS technology can provide most building blocks in RF transceivers, the implementation of CMOS RF power amplifiers is still a challenging task. The objective of this research is to develop design techniques to implement fully-integrated multi-mode power amplifiers using CMOS technology. In this dissertation, a load modulation technique with tunable matching networks and a pre-distor
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Myoung, Suk Keun. "Low frequency feedforward and predistortion linearization of RF power amplifiers." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1150416616.

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Landin, Per. "Digital Baseband Modeling and Correction of Radio Frequency Power Amplifiers." Doctoral thesis, KTH, Signalbehandling, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-94762.

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Abstract (sommario):
Aspects related to behavioral modeling and correction of distortions for radio frequency (RF) power amplifiers (PAs) are treated in the thesis.    When evaluating the performance of a behavioral model it is important to, first of all, use an evaluation criterion, and second, make sure that the criterion actually tells something about the behavior one wishes to describe. This is used in the weighted error spectral power ratio (WESPR) criterion by means of a frequency dependent weighting function. When the parameters of the models are estimated a suitable error criterion should likewise be used.
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Hella, Mona Mostafa. "CMOS radio frequency power amplifiers for short-range wireless standards /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486399160107527.

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Warr, Paul. "Octave-band feedforward linearisation for software defined radio receiver amplifiers." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340270.

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Mugisho, Moise Safari. "Design of a high efficiency S-band power amplifier for a Cubesat." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2454.

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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2016.<br>In all radio frequency (RF) electronic communication systems, power amplifiers (PAs) are used to generate the final transmitted signal. Specifically, these PAs are used to increase the output power of the transmitted signal. The PA accomplishes this by converting the applied direct current (DC) power to the PA into RF power, while being driven by a RF input signal. The portion of DC power that is not converted into RF power is dissipated as heat. The power conversion mechanism that takes place in a PA is
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Isaksson, Magnus. "Radio Frequency Power Amplifiers : Behavioral Modeling, Parameter Reduction, and Digital Predistortion." Doctoral thesis, KTH, Signalbehandling, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-24198.

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This work considers behavioral modeling, parameter-reduction, and digital predistortion of radio frequency power amplifiers. Due to the use of modern digital modulation methods, contemporary power amplifiers are frequently subjected to signals characterized by considerable bandwidths and fast changing envelopes. As a result, traditional quasi-memoryless amplitudeto-amplitude (AM/AM) and amplitude-to-phase (AM/PM) characteristics are no longer sufficient to describe and model the behavior of power amplifiers; neither can they be successfully used for linearization. In this thesis, sampled input
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Più fonti

Libri sul tema "Amplifiers, Radio frequency"

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RF power amplifiers. Chichester, West Sussex, U.K: Wiley, 2008.

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RF power amplifiers for wireless communications. Boston: Artech House, 1999.

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Schreurs, Dominique. RF power amplifier behavioral modeling. Cambridge: Cambridge University Press, 2008.

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1932-, Granberg Helge, ed. Radio frequency transistors: Principles and practical applications. Boston: Butterworth-Heinemann, 1993.

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1932-, Granberg Helge, ed. Radio frequency transistors: Principles and practical applications. 2nd ed. Boston: Newnes, 2001.

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Lenk, John D. Practical guide to electronic amplifiers: Basics, simplified design, audio-frequency, radio-frequency, intermediate frequency, video frequency, direct-coupled, compound, differential, Op-amp/OTA, tests, troubleshooting. Englewood Cliffs, N.J: Prentice Hall, 1991.

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Schreurs, Dominique. RF power amplifier behavioral modeling. Cambridge: Cambridge University Press, 2008.

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8

RF power amplifers for wireless communications. 2nd ed. Boston, MA: Artech House, 2006.

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9

Handbook of RF and microwave power amplifiers. Cambridge: Cambridge University Press, 2012.

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Vogel, Burkhard. The sound of silence: Lowest-noise RIAA phone-amps : designer's guide. Berlin: Springer, 2008.

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Capitoli di libri sul tema "Amplifiers, Radio frequency"

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Dvornikov, Sergey Viktorovich, Alexander Fedotovich Kryachko, Igor Anatolyevich Velmisov, and Dmitry Alexandrovich Zatuchny. "Frequency Converters." In Amplifiers in Radio Receivers, 105–26. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-6215-8_6.

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Papananos, Yannis E. "Low Noise Amplifiers." In Radio-Frequency Microelectronic Circuits for Telecommunication Applications, 105–33. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4757-3017-3_5.

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Nan, Jingchang, and Mingming Gao. "Other Power Amplifier Modeling." In Nonlinear Modeling Analysis and Predistortion Algorithm Research of Radio Frequency Power Amplifiers, 225–41. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003176855-8-8.

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Nan, Jingchang, and Mingming Gao. "Nonlinear Characteristics of Power Amplifier." In Nonlinear Modeling Analysis and Predistortion Algorithm Research of Radio Frequency Power Amplifiers, 17–29. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003176855-2-2.

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Nan, Jingchang, and Mingming Gao. "Overview of Power Amplifier Predistortion." In Nonlinear Modeling Analysis and Predistortion Algorithm Research of Radio Frequency Power Amplifiers, 71–79. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003176855-4-4.

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Nan, Jingchang, and Mingming Gao. "Power Amplifier Modeling with X-Parameters." In Nonlinear Modeling Analysis and Predistortion Algorithm Research of Radio Frequency Power Amplifiers, 205–23. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003176855-7-7.

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Nan, Jingchang, and Mingming Gao. "Volterra Series Modeling for Power Amplifier." In Nonlinear Modeling Analysis and Predistortion Algorithm Research of Radio Frequency Power Amplifiers, 81–133. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003176855-5-5.

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Nan, Jingchang, and Mingming Gao. "Power Amplifier Modeling Based on Neural Network." In Nonlinear Modeling Analysis and Predistortion Algorithm Research of Radio Frequency Power Amplifiers, 135–204. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003176855-6-6.

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Nan, Jingchang, and Mingming Gao. "Power Amplifier Behavioral Model and Nonlinear Analysis Basis." In Nonlinear Modeling Analysis and Predistortion Algorithm Research of Radio Frequency Power Amplifiers, 31–70. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003176855-3-3.

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Nan, Jingchang, and Mingming Gao. "Overview of Research Status." In Nonlinear Modeling Analysis and Predistortion Algorithm Research of Radio Frequency Power Amplifiers, 1–16. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003176855-1-1.

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Atti di convegni sul tema "Amplifiers, Radio frequency"

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Chumarov, Sergey. "MODELING OF HIGH FREQUENCY AMPLIFIERS FOR MODERN RADIO SYSTEMS." In CAD/EDA/SIMULATION IN MODERN ELECTRONICS 2019. Bryansk State Technical University, 2019. http://dx.doi.org/10.30987/conferencearticle_5e028214dee077.23787773.

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The modeling features of high-frequency amplifiers are considered. The urgency of the development of such amplifiers is justified and the application areas are indicated. The stages of design of amplifiers are described in detail.
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Bohsali, Mounir, and Ali M. Niknejad. "Current combining 60GHz CMOS power amplifiers." In 2009 IEEE Radio Frequency Integrated Circuits Symposium (RFIC). IEEE, 2009. http://dx.doi.org/10.1109/rfic.2009.5135483.

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Mondal, Jyoti, and Gary Zhang. "Session: RTU1B: mm-Wave power amplifiers." In 2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC). IEEE, 2013. http://dx.doi.org/10.1109/rfic.2013.6569579.

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Walling, Jeff, and Nick Cheng. "Session: RMO4B: Highly-efficient power amplifiers." In 2014 IEEE Radio Frequency Integrated Circuits Symposium (RFIC). IEEE, 2014. http://dx.doi.org/10.1109/rfic.2014.6851705.

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Apel, Thomas, Yu-Lung Tang, and Otto Berger. "Switched Doherty Power Amplifiers for CDMA and WCDMA." In 2007 IEEE Radio Frequency Integrated Circuits Symposium. IEEE, 2007. http://dx.doi.org/10.1109/rfic.2007.380878.

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Heydari, Babak, Ehsan Adabi, Mounir Bohsali, Bagher Afshar, Amin Arbabian, and Ali M. Niknejad. "Internal Unilaterization Technique for CMOS mm-Wave Amplifiers." In 2007 IEEE Radio Frequency Integrated Circuits Symposium. IEEE, 2007. http://dx.doi.org/10.1109/rfic.2007.380924.

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Abuelma'atti, M. T. "Demodulation radio frequency interference in bipolar operational amplifiers." In 9th International Conference on Electromagnetic Compatibility. IEE, 1994. http://dx.doi.org/10.1049/cp:19940701.

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"Session MO1D: Broadband Amplifiers." In 2004 IEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers. IEEE, 2004. http://dx.doi.org/10.1109/rfic.2004.1320564.

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Zhao, Yibing, Bin Hou, and Shuyun Zhang. "Monolithically integrated high performance digital variable gain amplifiers." In 2012 IEEE Radio Frequency Integrated Circuits Symposium (RFIC). IEEE, 2012. http://dx.doi.org/10.1109/rfic.2012.6242254.

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Unterweissacher, Martin, Koen Mertens, Thomas Brandtner, and Wolfgang Pribyl. "Stability Analysis of On-Chip Multi-Stage RF Power Amplifiers." In 2007 IEEE Radio Frequency Integrated Circuits Symposium. IEEE, 2007. http://dx.doi.org/10.1109/rfic.2007.380926.

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