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High Power Linear Cmos Power Amplifier For Wlan Applications
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Book Synopsis High Power, Linear CMOS Power Amplifier for WLAN Applications by : Ali Afsahi
Download or read book High Power, Linear CMOS Power Amplifier for WLAN Applications written by Ali Afsahi and published by . This book was released on 2013 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advancement of CMOS technology has enabled a high level of integration in modern, low cost, small form-factor and low power wireless devices. While power amplifiers (PAs) are key components in wireless transceivers, their realization and integration in standard CMOS technology has shown several challenges. The modern wireless standards such as WLAN and LTE, utilize higher order modulation schemes in order to increase the data rate and efficiently use the limited available spectrum and also provide a robust link in a fading environment. These modulations possess a very high peak-to-average ratio (PAR) and require a very linear power amplifier to preserve the integrity of the signal. In this dissertation several linearization and power combining techniques have been proposed to address the challenges of designing a high power and linear PA in CMOS for WLAN applications. To demonstrate these techniques in silicon, three chips have been designed and fabricated in 65nm standard CMOS. In the first chip, a fully integrated dual-band power amplifiers with on-chip baluns for 802.11n MIMO WLAN applications are implemented. With a 3.3v supply, the PAs produce a saturated output power of 28.3dBm and 26.7dBm with peak drain efficiency of 35.3% and 25.3% for the 2.4GHz and 5GHz bands, respectively. By utilizing multiple fully self-contained linearization algorithms, an EVM of -25dB is achieved at 22.4dBm for the 2.4GHz band and 20.5dBm for the 5GHz band while transmitting 54Mbs OFDM. In the next two designs, two monolithic power combining schemes for CMOS power amplifiers, distributed-LC and current-mode transformer-based, are compared. Fully integrated 2.4GHz power amplifiers (PAs) using these techniques were fabricated. From a 3.3 V supply, the distributed-LC combined PA produces a saturated power of 31.5dBm with peak PAE of 25%. The current-mode transformer based PA combiner produces 33.5dBm saturated power with 37.6% peak PAE. With gm-linearization and digital pre-distortion, these PAs transmit 25.5dBm and 26.4dBm with -25dB EVM for a 54Mb/s OFDM signal respectively.
Author :Paulo Augusto Dal Fabbro Publisher :Springer Science & Business Media ISBN 13 :9048193613 Total Pages :171 pages Book Rating :4.0/5 (481 download)
Book Synopsis Linear CMOS RF Power Amplifiers for Wireless Applications by : Paulo Augusto Dal Fabbro
Download or read book Linear CMOS RF Power Amplifiers for Wireless Applications written by Paulo Augusto Dal Fabbro and published by Springer Science & Business Media. This book was released on 2010-06-22 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in electronics have pushed mankind to create devices, ranging from - credible gadgets to medical equipment to spacecraft instruments. More than that, modern society is getting used to—if not dependent on—the comfort, solutions, and astonishing amount of information brought by these devices. One ?eld that has continuously bene?tted from those advances is the radio frequency integrated c- cuit (RFIC) design, which in its turn has promoted countless bene?ts to the mankind as a payback. Wireless communications is one prominent example of what the - vances in electronics have enabled and their consequences to our daily life. How could anyone back in the eighties think of the possibilities opened by the wireless local area networks (WLANs) that can be found today in a host of places, such as public libraries, coffee shops, trains, to name just a few? How can a youngster, who lives this true WLAN experience nowadays, imagine a world without it? This book dealswith the design oflinearCMOS RF PowerAmpli?ers(PAs). The RF PA is a very important part of the RF transceiver, the device that enables wireless communications. Two important aspects that are key to keep the advances in RF PA design at an accelerate pace are treated: ef?ciency enhancement and frequen- tunable capability. For this purpose, the design of two different integrated circuits realizedina0. 11μmtechnologyispresented,eachoneaddressingadifferentaspect. With respect to ef?ciency enhancement, the design of a dynamic supply RF power ampli?er is treated, making up the material of Chaps. 2 to 4.
Book Synopsis Highly Efficient Linear CMOS Power Amplifiers for Wireless Communications by : Ham Hee Jeon
Download or read book Highly Efficient Linear CMOS Power Amplifiers for Wireless Communications written by Ham Hee Jeon and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapidly expanding wireless market requires low cost, high integration and high performance of wireless communication systems. CMOS technology provides benefits of cost effectiveness and higher levels of integration. However, the design of highly efficient linear CMOS power amplifier that meets the requirement of advanced communication standards is a challenging task because of the inherent difficulties in CMOS technology. The objective of this research is to realize PAs for wireless communication systems that overcoming the drawbacks of CMOS process, and to develop design approaches that satisfying the demands of the industry. In this dissertation, a cascode bias technique is proposed for improving linearity and reliability of the multi-stage cascode CMOS PA. In addition, to achieve load variation immunity characteristic and to enhance matching and stability, a fully-integrated balanced PA is implemented in a 0.18-m CMOS process. A triple-mode balanced PA using switched quadrature coupler is also proposed, and this work saved a large amount of quiescent current and further improved the efficiency in the back-off power. For the low losses and a high quality factor of passive output combining, a transformer-based quadrature coupler was implemented using integrated passive device (IPD) process. Various practical approaches for linear CMOS PA are suggested with the verified results, and they demonstrate the potential PA design approach for WCDMA applications using a standard CMOS technology.
Book Synopsis Linear CMOS RF Power Amplifiers by : Hector Solar Ruiz
Download or read book Linear CMOS RF Power Amplifiers written by Hector Solar Ruiz and published by Springer Science & Business Media. This book was released on 2013-09-14 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work establishes the design flow for the optimization of linear CMOS power amplifiers from the first steps of the design to the final IC implementation and tests. The authors also focuses on design guidelines of the inductor’s geometrical characteristics for power applications and covers their measurement and characterization. Additionally, a model is proposed which would facilitate designs in terms of transistor sizing, required inductor quality factors or minimum supply voltage. The model considers limitations that CMOS processes can impose on implementation. The book also provides different techniques and architectures that allow for optimization.
Book Synopsis RF CMOS Power Amplifiers: Theory, Design and Implementation by : Mona M. Hella
Download or read book RF CMOS Power Amplifiers: Theory, Design and Implementation written by Mona M. Hella and published by Springer Science & Business Media. This book was released on 2001-12-31 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: RF CMOS Power Amplifiers: Theory Design and Implementation focuses on the design procedure and the testing issues of CMOS RF power amplifiers. This is the first monograph addressing RF CMOS power amplifier design for emerging wireless standards. The focus on power amplifiers for short is distance wireless personal and local area networks (PAN and LAN), however the design techniques are also applicable to emerging wide area networks (WAN) infrastructure using micro or pico cell networks. The book discusses CMOS power amplifier design principles and theory and describes the architectures and tardeoffs in designing linear and nonlinear power amplifiers. It then details design examples of RF CMOS power amplifiers for short distance wireless applications (e, g., Bluetooth, WLAN) including designs for multi-standard platforms. Design aspects of RF circuits in deep submicron CMOS are also discussed. RF CMOS Power Amplifiers: Theory Design and Implementation serves as a reference for RF IC design engineers and RD and R&D managers in industry, and for graduate students conducting research in wireless semiconductor IC design in general and with CMOS technology in particular.
Book Synopsis High Efficiency Power Amplifier Design for 28 GHz 5G Transmitters by : Nourhan Elsayed
Download or read book High Efficiency Power Amplifier Design for 28 GHz 5G Transmitters written by Nourhan Elsayed and published by Springer Nature. This book was released on 2022-02-02 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces power amplifier design in 22nm FDSOI CMOS dedicated towards 5G applications at 28 GHz and presents 4 state-of-the-art power amplifier designs. The authors discuss power amplifier performance metrics, design trade-offs, and presents different power amplifier classes utilizing efficiency enhancement techniques at 28 GHz. The book presents the design process from theory, simulation, layout, and finally measurement results.
Book Synopsis Research on CMOS Power Amplifier with Transformer Power Combining for WLAN System Applications and K-band Active Antenna Power Amplifier Using CMOS and IPD Process by : 黃冠傑
Download or read book Research on CMOS Power Amplifier with Transformer Power Combining for WLAN System Applications and K-band Active Antenna Power Amplifier Using CMOS and IPD Process written by 黃冠傑 and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Implementation of Cmos Power Amplifier for Gsm Applications by : Shivaprasad T. J.
Download or read book Design and Implementation of Cmos Power Amplifier for Gsm Applications written by Shivaprasad T. J. and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this work is to design and implement a CMOS power amplifier for GSM Applications. Recent study shows that more analog blocks are being integrated onto single silicon CMOS Chip. The power amplifier becomes the final block in the transmit path and has to amplify the signal to required power level. Power amplifiers are extensively used in cell phones, base stations, cordless phones, WLAN etc. Class-C has become more useful where efficiency is a prime concern. A differential topology method is presented to design Power Amplifier (PA) for GSM applications. The differential topology suppresses the even higher harmonics at the output. The CMOS Class-C PA is suitable for applications which use constant-envelope modulation scheme where information is contained in phase e.g. BPSK and GMSK. This is an advantage for Class-C PA despite non-linearity of the output signal. The balun implemented in this design is not only used to link the differential PA to the single-ended load but also works as a output matching network. In this work the transistor size i.e. 'W/L Ratio', L and C values are set in order to maximize the Power Added Efficiency (PAE).
Book Synopsis Efficiency Enhancement and Frequency-tunable Capability in Linear CMOS RF Power Amplifiers for Wireless Applications by : Paulo Augusto Dal Fabbro
Download or read book Efficiency Enhancement and Frequency-tunable Capability in Linear CMOS RF Power Amplifiers for Wireless Applications written by Paulo Augusto Dal Fabbro and published by . This book was released on 2009 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Efficiency Switching CMOS Power Amplifiers for Wireless Communications by : Ockgoo Lee
Download or read book High Efficiency Switching CMOS Power Amplifiers for Wireless Communications written by Ockgoo Lee and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: High-efficiency performance is one of the most important requirements of power : amplifiers (PAs) for wireless applications. However, the design of highly efficient CMOS.
Book Synopsis SiGe HBT Power Amplifiers for WLAN Applications by : Arvind Keerti
Download or read book SiGe HBT Power Amplifiers for WLAN Applications written by Arvind Keerti and published by . This book was released on 2004 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis RF and mm-Wave Power Generation in Silicon by : Hua Wang
Download or read book RF and mm-Wave Power Generation in Silicon written by Hua Wang and published by Academic Press. This book was released on 2015-12-10 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: RF and mm-Wave Power Generation in Silicon presents the challenges and solutions of designing power amplifiers at RF and mm-Wave frequencies in a silicon-based process technology. It covers practical power amplifier design methodologies, energy- and spectrum-efficient power amplifier design examples in the RF frequency for cellular and wireless connectivity applications, and power amplifier and power generation designs for enabling new communication and sensing applications in the mm-Wave and THz frequencies. With this book you will learn: Power amplifier design fundamentals and methodologies Latest advances in silicon-based RF power amplifier architectures and designs and their integration in wireless communication systems State-of-the-art mm-Wave/THz power amplifier and power generation circuits and systems in silicon Extensive coverage from fundamentals to advanced design topics, focusing on various layers of abstraction: from device modeling and circuit design strategy to advanced digital and mixed-signal architectures for highly efficient and linear power amplifiers New architectures for power amplifiers in the cellar and wireless connectivity covering detailed design methodologies and state-of-the-art performances Detailed design techniques, trade-off analysis and design examples for efficiency enhancement at power back-off and linear amplification for spectrally-efficient non-constant envelope modulations Extensive coverage of mm-Wave power-generation techniques from the early days of the 60 GHz research to current state-of the-art reconfigurable, digital mm-Wave PA architectures Detailed analysis of power generation challenges in the higher mm-Wave and THz frequencies and novel technical solutions for a wide range for potential applications, including ultrafast wireless communication to sensing, imaging and spectroscopy Contributions from the world-class experts from both academia and industry
Book Synopsis Wireless Ultra-Wideband Cmos Power Amplifiers by : Sohiful Anuar Zainol Murad
Download or read book Wireless Ultra-Wideband Cmos Power Amplifiers written by Sohiful Anuar Zainol Murad and published by LAP Lambert Academic Publishing. This book was released on 2012-03 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: WIRELESS ULTRA-WIDEBAND CMOS POWER AMPLIFIERS: Design and Implementation focus on the theory, design, fabrication and testing of CMOS RF power amplifiers. This book has addressed the state-of-the-art and the latest achievements in CMOS technology UWB power amplifiers design. It has taken a theoretical and experimental approach to some extent, which is more useful to the reader. The book highlights the unique design issues which put the reader in good pace to be able to understand more advanced research. This book covers the background and fundamental theory of power amplifiers, the class of operation, the performance criteria and power amplifier circuits design and implementation in CMOS technology. Read this book to learn more about the design techniques for realizing wide bandwidth power amplifiers for UWB applications. It then details design example of wideband CMOS power amplifiers. This book is a comprehensive reference to students as well as practicing professionals in academia and industry working in the areas of power amplifier circuits design as well as in transmitter wireless device development.
Book Synopsis CMOS Power Device Modeling and Amplifier Circuits by : Doris A. Chan
Download or read book CMOS Power Device Modeling and Amplifier Circuits written by Doris A. Chan and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A power amplifier (PA) is a key part of the RF front-end in transmitters for a local broadband network. Today, commercial PAs are made of III-V HEMT and HBT technology with excellent results. An integrated system-on-chip power amplifier circuit using CMOS technology for cost-effective and spectrum-efficient high-speed wireless communication presents major challenges because power amplifiers have been the limiting components in RF CMOS transmitter integrated circuits (ICs). At high frequencies, the distributed effect and power device-scaling issues put other constraints on PA design such as the trade-off between output power (Pout) and power added efficiency (PAE). Recently, CMOS has become attractive for low-cost and high-level integration due to the advancement of NMOS performance with ft and fmax > 100 GHz and is available from commercial CMOS foundries. However, the foundry-provided BSIM-RF model is unable to accurately predict the I-V characteristics and RF behaviors (ft and fmax) of power devices with widths of several hundred microns. Therefore, an advanced large-signal model which is able to predict distributed nonlinear effects is crucial for the successful design of high-frequency PAs. The microwave lumped and distributed layout parasitic effect in the 130 nm (BSIM3v3-RF) and 90 nm (BSIM4-RF) models to accurately predict gain, output power, and harmonic distortions of power MOSFETs at millimeter wave frequencies. The proposed power device model is verified for single devices as well as for the integrated power amplifier circuits in S-band and W-band applications. For S-band WiMAX application, we have developed an accurate modeling with layout parasitic of power CMOS devices and designed lossless matching networks to achieve single-end PA performance of 31 dB gain, 21.4 dBm output power, and 14.5% PAE at the 1 dB compression point. The measured maximum output power is 25.5 dBm and the associated PAE is 32%. For W-band application, a compact two-stage CMOS power amplifier is designed with gain boosting at the common gate transistor, source degeneration for the cascode devices and LC short stub matching networks. The amplifier was fabricated and demonstrated with excellent RF performance of 18 dB gain, 10.8 dBm linear output power, 13.3 dBm saturated power, and 11.8% PAE at 80 GHz with a minimum chip area of 0.35 mm2 in 90 nm CMOS technology. Monolithic power-combining techniques are attractive for delivering linear power over 20 dBm at W-band range due to the size reduction of the combiner. A W-band monolithic CPW Wilkinson power combiner of two CMOS power amplifiers is implemented in 90 nm CMOS technology. The 77 to 83 GHz CMOS PA achieved the 17 dB small-signal gain, 4.5 GHz 3 dB bandwidth, 10.6 dBm linear output power, 12.3 dBm saturated power, and 3.9% PAE at 80 GHz.
Book Synopsis CMOS 60-GHz and E-band Power Amplifiers and Transmitters by : Dixian Zhao
Download or read book CMOS 60-GHz and E-band Power Amplifiers and Transmitters written by Dixian Zhao and published by Springer. This book was released on 2015-06-29 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the development of design techniques and methodologies for 60-GHz and E-band power amplifiers and transmitters at device, circuit and layout levels. The authors show the recent development of millimeter-wave design techniques, especially of power amplifiers and transmitters, and presents novel design concepts, such as “power transistor layout” and “4-way parallel-series power combiner”, that can enhance the output power and efficiency of power amplifiers in a compact silicon area. Five state-of-the-art 60-GHz and E-band designs with measured results are demonstrated to prove the effectiveness of the design concepts and hands-on methodologies presented. This book serves as a valuable reference for circuit designers to develop millimeter-wave building blocks for future 5G applications.
Book Synopsis Linearization of a Pulse Width Modulated Power Amplifier by : Shawn Kuo
Download or read book Linearization of a Pulse Width Modulated Power Amplifier written by Shawn Kuo and published by . This book was released on 2004 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Currently, the cellphone industry is moving towards an integrated CMOS solution for power amplifiers. Cheaper phones for consumers and better bottom lines for companies are the result of this. The goal of this thesis is to investigate the use of pulse width modulation in a high efficiency integrated CMOS power amplifier for a wireless application. Though high efficiency CMOS power amplifiers exist in academia, the goal of this project is to explore pulse width modulation as a method of adjusting power. Pulse width modulation can potentially be used to create a higher bandwidth system. The challenge of this architecture is creating linear dynamic range. In simulations, feedback improved the pulse width modulated power amplifier linear dynamic range to 23dB.
Book Synopsis CMOS Power Amplifiers for Wireless Communications by : Chengzhou Wang
Download or read book CMOS Power Amplifiers for Wireless Communications written by Chengzhou Wang and published by . This book was released on 2003 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
