Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 498 for “"Amplifiers"”.
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Polymer Waveguide Amplifiers
… to create compact erbium-doped waveguide amplifiers (EDWAs) for board-level interconnect applications. Siloxane polymer materials developed by Dow Corning are used as they have shown the necessary optical, mechanical and thermal properties required for EDWA designs (such as the ability to …
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Grounded-grid power amplifiers,
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering, 1945
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Nd:YVO4 microchip lasers and amplifiers
An investigation of microchip laser and amplifier systems using the material Neodymium doped Yttrium orthovanadate (Nd:YV04) has been performed. This project takes advantage of recent improvements in the growth of Nd:YV04 to investigate its potential as a compact and simple single longitudinal mode …
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Linearization of RF Power Amplifiers
Linearization of RF power amplifiers is surveyed, reviewed and analyzed. Cartesian feedback is specifically presented as an effective means of linearizing an efficient yet non-linear power amplifier. This reduces amplifier distortion to acceptable levels and enables the transmission of RF signals …
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Design of micropower operational amplifiers
… a design of micropower Class AB operational amplifiers which has the ratio of gain bandwidth product to supply current higher than that of an existing IC. The design is in a 0.6pxm CMOS process. The input stage of the design has the folded-cascode architecture that allows the input …
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Series parallel connected composite amplifiers
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1983.
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Automatic gain control of transistor amplifiers
The rapid progress made in the field of semiconductors since the invention of the transistor seven years ago has widely broadened our theoretical knowledge in the field and greatly increased the potentialities of these devices. Particularly our increasing ability to manxifacture reproducible …
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CMOS current amplifiers : speed versus nonlinearity
… design using various types of current-mode amplifiers. These circuits are analysed and realised using modern CMOS integration technologies. The dynamic nonlinearities of these circuits are discussed in detail as in the literature only linear nonidealities and static nonlinearities are …
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The design of integrated distributed amplifiers
Thesis: Elec. E., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 1980
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The Quest for Ideal Quantum Amplifiers
… qubits in each error correction cycle. Quantum amplifiers are a critical frontend quantum hardware to faithfully amplify single-photon-level readout signals above the orders of magnitude larger ambient and electronics noise at room temperature. However, existing quantum amplifiers face …
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Ultra-low voltage CMOS operational amplifiers
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Outphase power amplifiers in OFDM systems
… and efficiency exists in conventional power amplifiers. The outphase amplifying concept overcomes this trade-off by enabling the use of high efficiency, non-linear power amplifiers for linear amplification. An amplitude modulated signal is first decomposed into two constant amplitude, phase …
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Biasing techniques for linear power amplifiers
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Characterisation of optical fibre amplifiers: amplifiers for the 632.8 nm He-Ne wavelength in praseodymium-doped ZBLAN
An investigation of small-signal amplification on the 3Po-3F2 transition in a praseodymium-doped fluorozirconate optical fibre at the 632.8 nm He-Ne wavelength, has been conducted. The optical gain is fundamentally related to the spectroscopic characteristics of praseodymium-doped in a …
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Stable Spatial Solitons In Semiconductor Optical Amplifiers
… in PPSOA devices. Furthermore, discrete array amplifiers have been analyzed numerically for discrete solitons, and the prospect of using multi peak discrete solitons as laser amplifiers is discussed.
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Novel predistortion techniques for RF power amplifiers
… nowadays, predistortion for the RF power amplifiers in mobile phone systems becomes more and more popular. Especially, new predistortions for power amplifiers with both nonlinearities and memory effects interest the researchers. In our thesis, novel predistortion techniques are presented …
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Class E amplifiers and their modulation behaviour
The Class E power amplifier has very high drain efficiency under quasi-static conditions, and is a good candidate for Envelope Elimination and Restoration (EER) or other polar techniques. Unfortunately it has an unusual carrier frequency response, for which no analytic expression was known; this …
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A Mathematical Analysis of Nonlinear Feedback Amplifiers
Made available in DSpace on 2014-12-04T21:02:53Z (GMT). No. of bitstreams: 1 0018164.pdf: 2841593 bytes, checksum: 010c976003d03a27e124db7b79773df5 (MD5) Previous issue date: 1956
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Dynamic amplifiers for analog-to-digital converters
… especially for the design of operational amplifiers (op-amps) to implement gain. In this dissertation, dynamic/latch-based/regenerative amplifiers are explored where interrupted regeneration is used to implement the gain function. First, a 6-b current-domain interpolating pipelined flash …
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Characterization of various types of power amplifiers
… and knowledge of various types of power amplifiers and highlights their unique pros and cons among the different topologies. A high-efficiency, high-frequency switching mode power amplifier will be discussed mostly with regard to its design and measurement testing. Moreover, a …
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