Design Of Wide Band Parametric Amplifiers
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Design Of Wide Band Parametric Amplifiers
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Author : Minoru Fukada
language : en
Publisher:
Release Date : 1961
Design Of Wide Band Parametric Amplifiers written by Minoru Fukada and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Parametric amplifiers categories.
New Method For Designing Wideband Parametric Amplifiers
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Author : Stanford University. Stanford Electronics Laboratories
language : en
Publisher:
Release Date : 1962
New Method For Designing Wideband Parametric Amplifiers written by Stanford University. Stanford Electronics Laboratories and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with categories.
Theory And Design Of Wide Band Parametric Converters
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Author : E. S. KUH
language : en
Publisher:
Release Date : 1961
Theory And Design Of Wide Band Parametric Converters written by E. S. KUH and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with categories.
Existing works on parametric amplifiers deal mostly with the physical aspects of the device, the analysis and design of simple coupling circuits. The parametric converter is studied from the circuit theory point of view. The wellknown small signal approach is used and the nonlinear capacitance is approximated by a periodically varying capacitance. A general circuit configuration is considered where the variable capacitance is imbedded in an arbitrary passive network. Formula for the power gain is derived in terms of the variable capacitance and appropriate impedances of the passive imbedding network. From the general formula, the maximum gain-bandwidth product is then studied by utilizing Bode's familiar relationships. Research is concerned with only the noninverting type parametric converter. Synthesis procedures for coupling networks to approach the optimum gain bandwidth are presented. A design example indicates that even with the above assumption, a converter with 70% bandwidth can be obtained to achieve a power gain within 1/2 db from the optimum. (Author).
Design Of Single Diode Wideband Parametric Amplifiers Of Specified Gain Bandwidth And Signal Load Impedance
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Author : Alex Mayer
language : en
Publisher:
Release Date : 1961
Design Of Single Diode Wideband Parametric Amplifiers Of Specified Gain Bandwidth And Signal Load Impedance written by Alex Mayer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Diodes categories.
Design procedure is described for fixed-frequency wideband parametric amplifiers which utilize a single varactor diode and operate in the threefrequency mode: f sub p=f+f'. The procedure is applicable to designing with lumped and/or distributed circuit elements. The circuit is oneANALYZED BY Matthaei and is achieved by the synthesis of appropriate signal and idler bandpass filters from a low-pass prototype. The design procedure is for specified but arbitrary signal, midband gain C sub SO, (Fractional) bandwidth w sub D, and signal filter midband impedance R sub bo. One result of developing design equations for arbitrary R sub bo is that the transformer between R sub bo and R sub c is now eliminated by simply assigning R sub bo equals R sub c. Numerical examples of designs are given for degenerate and non-degenerate microwave amplifiers. (Author).
Design Of Low Noise Amplifiers For Ultra Wideband Communications
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Author : Roberto Díaz Ortega
language : en
Publisher: McGraw Hill Professional
Release Date : 2014-01-13
Design Of Low Noise Amplifiers For Ultra Wideband Communications written by Roberto Díaz Ortega and has been published by McGraw Hill Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-13 with Technology & Engineering categories.
Cutting-edge techniques for ultra-wideband, low-noise amplifier design This pioneering resource presents alternatives for implementing power- and area-efficient integrated low-noise amplifiers for ultra-wideband communications. Design methodologies for distributed amplifiers, feedback amplifiers, inductor structures with reduced area, and inductorless techniques are discussed. Cowritten by international experts in industry and academia, this book addresses the state of the art in integrated circuit design in the context of emerging systems. Design of Low-Noise Amplifiers for Ultra-Wideband Communications covers: Ultra-wideband overview and system approach Distributed amplifiers Wideband low-noise amplifiers Feedback wideband low-noise amplifiers Inductorless techniques
Wideband Amplifier Design
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Author : Allen L. Hollister
language : en
Publisher: SciTech Publishing
Release Date : 2007-06-30
Wideband Amplifier Design written by Allen L. Hollister and has been published by SciTech Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-06-30 with Technology & Engineering categories.
Allen Hollister uses easy models to develop the theory needed to understand wideband amplifier design. With this theory, he develops equations used in high frequency design, giving the reader an understanding of the process and circuit.
Highly Linear Integrated Wideband Amplifiers
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Author : Henrik Sjöland
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Highly Linear Integrated Wideband Amplifiers written by Henrik Sjöland and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
Highly Linear Integrated Wideband Amplifiers: Design and Analysis Techniques for Frequencies from Audio to RF deals with the complicated issues involved in the design of high-linearity integrated wideband amplifiers for different operating frequencies. The book demonstrates these principles using a number of high-performance designs. New topologies for high linearity are presented, as well as a novel method for estimating the intermodulation distortion of a wideband signal. One of the most exciting results presented is an enhanced feedback configuration called feedback boosting that is capable of very low distortion. Also important is a statistical method for relating the intermodulation distortion of a wideband signal to the total harmonic distortion (THD) of a single tone. The THD, as opposed to the intermodulation distortion of the wideband signal, is easy to measure and use as a design parameter. Three different applications where high linearity is needed are identified, namely audio power amplifiers, wideband IF amplifiers and RF power amplifiers. For these applications high-performance integrated amplifier designs using novel topologies are presented together with measurement results. The audio amplifiers are built in CMOS and are capable of driving 8Omega loudspeaker loads directly without using any external components. One of the designs can operate on a supply voltage down to 1.5V. Both bipolar and CMOS wideband IF amplifiers are built; they are fully differential and have linearity from DC to 20 MHz. Finally, an RF power amplifier is built in CMOS, without using inductors, in order to investigate what performance can be achieved without them. Highly Linear Integrated Wideband Amplifiers: Design and Analysis Techniques for Frequencies from Audio to RF is an excellent reference for researchers and designers of integrated amplifiers, and may be used as a text for advanced courses on the topic.
Theoretical Bandwidth Limitations In Uhf Parametric Amplifiers And Converters
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Author : Paul Otto Scheibe
language : en
Publisher:
Release Date : 1962
Theoretical Bandwidth Limitations In Uhf Parametric Amplifiers And Converters written by Paul Otto Scheibe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Amplifiers, Vacuum-tube categories.
This work is devoted to finding the bandwidth or gain-bandwidth limits of parametric amplifiers and converters haeing a single linear-time-variant (LTV) element. The limits include the effects of all the important parasitic elements of the LTV device, such as lead inductance and series resistance. The limits are applicable to a wide variety of devices, including microwave crystal diodes, tunnel diodes, p-n junction capacitors, metal-oxide-salicon capacitors, many LTV inductors, and most other two-terminal LTV devices. The limits are found for lower- and upper-sideband converters and negative resistance amplifiers with fixed pump frequency; the bandwidth limits for the upper-sideband tunable converter are also derived. As a bonus, certain design criteria result from the formulation of the bandwidth limits; these criteria prove useful in the design of practical wideband converters and amplifiers. Several examples of wideband converter designs illustrate use of the design criteria; experimental results agree very well with the theoretical predictions. (Author).
Design Of Rf And Microwave Parametric Amplifiers And Power Upconverters
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Author : Blake Raymond Gray
language : en
Publisher:
Release Date : 2012
Design Of Rf And Microwave Parametric Amplifiers And Power Upconverters written by Blake Raymond Gray and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Amplifiers (Electronics) categories.
The objective of this research is to develop, characterize, and demonstrate novel parametric architectures capable of wideband operation while maintaining high gain and stability. To begin the study, phase-incoherent upconverting parametric amplifiers will be explored by first developing a set of analytical models describing their achievable gain and efficiency. These models will provide a set of design tools to optimize and evaluate prototype circuit boards. The prototype boards will then be used to demonstrate their achievable gain, bandwidth, efficiency, and stability. Further investigation of the analytical models and data collected from the prototype boards will conclude bandwidth and gain limitations and end the investigation into phase-incoherent upconverting parametric amplifiers in lieu of negative-resistance parametric amplifiers. Traditionally, there were two versions of negative-resistance parametric amplifiers available: degenerate and non-degenerate. Both modes of operation are considered single-frequency amplifiers because both the input and output frequencies occur at the source frequency. Degenerate parametric amplifiers offer more power gain than their non-degenerate counterpart and do not require additional circuitry for idler currents. As a result, a phase-coherent degenerate parametric amplifier printed circuit board prototype will be built to investigate achievable gain, bandwidth, and stability. Analytical models will be developed to describe the gain and efficiency of phase-coherent degenerate parametric amplifiers. The presence of a negative resistance suggests the possibility of instability under certain operating conditions, therefore, an in-depth stability study of phase-coherent degenerate parametric amplifiers will be performed. The observation of upconversion gain in phase-coherent degenerate parametric amplifiers will spark investigation into a previously unknown parametric architecture: phase-coherent upconverting parametric amplifiers. Using the phase-coherent degenerate parametric amplifier prototype board, stable phase-coherent upconversion with gain will be demonstrated from the source input frequency to its third harmonic. An analytical model describing the large-signal transducer gain of phase-coherent upconverting parametric amplifiers from the first to the third harmonic of the source input will be derived and validated using the prototype board and simulations.
A Novel Approach For Wide Band High Efficiency Power Amplifier Design
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Author : Abdullah Almuhaisen
language : en
Publisher:
Release Date : 2012
A Novel Approach For Wide Band High Efficiency Power Amplifier Design written by Abdullah Almuhaisen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Wireless communication systems require an efficient and broadband RF frontend. RF Power Amplifiers (PA) are the most critical component in the RF frontend and are considered the bottleneck in high efficient wideband transmitters. The research starts with an investigation of high efficient operation modes based on waveform engineering. The outcome of the research can be divided into two main parts: The first concerns an analysis of high efficient modes of operation. The second part builds on first part looking at the PA's efficiency-bandwidth perspective to design a wide band high efficient PA. The first part of the thesis, introduces a novel linear high efficient PA mode termed Injection Power Amplifier (IPA) that exceeds drain efficiency of 90% without relying on the nonlinearity of a PA at the compression region. This is achieved by presenting appropriate negative harmonic impedances to a transistor to reduce the dissipated power, thus, increasing the efficiency of conversion of DC to fundamental RF power. The theoretical analysis of this mode is presented and a validation measurement has been carried out using an active load-pull system. The measured results confirmed the theoretical predictions of achieving high efficiency in a linear PA operation. Furthermore, a PA structure that is based on two parallel PAs (main PA and auxiliary PA) has been proposed along with the practical circuit realization of the IPA mode. In addition, a PA prototype has been designed following a methodology of nonlinear PA design based on waveform engineering. The PA prototype has been characterized and built operating at 0.9 GHz with an output power of 10 W showing a high linear efficient operation of 80% drain efficiency at only 1 dB compression level. The second part of this work aims to tackle today's limitation of high efficient wideband PAs beyond octave bandwidth. A conceptual system based on multimode operation has been proposed to overcome the need for bandlimiting passive harmonic termination. This novel approach is based on combining passive termination with active harmonic injection to get around the theoretical limitation of one octave for high efficiency harmonically tuned power amplifiers. Furthermore, a proof of concept PA prototype has been designed and built for a two octave bandwidth (4:1 bandwidth) operating from 0.63-2.56 GHz and providing the rated output power of a 10 W GaN device with a PAE greater than 50% at only 1 dB compression point. This multi-mode approach shows a promising technique for future wideband high efficiency wireless transmitters.