Browsing by Author "Hoyos, Sebastian"
Now showing items 21-40 of 45
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Pacheco Barajas, Oscar Joseu (2017-08-01)Recent techniques in optical coherence tomography (OCT) make use of specialized light sources that sweep across a broad optical bandwidth, allowing for longer depth ranges at higher resolutions. The produced light source ...
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Park, Joung Won (2010-10-12)In this work, a highly linear broadband Low Noise Amplifier (LNA) is presented. The linearity issue in broadband Radio Frequency (RF) front-end is introduced, followed by an analysis of the specifications and requirements ...
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Zheng, Qingran (2017-12-08)With increasing design complexity and reliability requirements, analog and mixedsignal (AMS) verification manifests itself as a key bottleneck. While formal methods and machine learning have been proposed for AMS verification, ...
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Kulkarni, Mandar Shashikant (2009-05-15)The recent popularity and convenience of Wireless communication and the need for integration demands the development of Software Defined Radio (SDR). First defined by Mitoal, the SDR processed the entire bandwidth using a ...
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Lee, Sanghoon (2020-10-19)As semiconductor technology scales down, the variations of active/passive device characteristics after fabrication are getting more and more significant. As a result, many circuits need more accuracy margin to meet minimum ...
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Ahmed, Ramy; Hoyos, Sebastian; Silva-martinez, Jose (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2012-04-24)A continuous-time delta-sigma analog-to-digital converter (ADC) is disclosed. The ADC includes a loop filter, a loop quantizer, and a clock-jitter tolerant digital-to-analog converter (DAC). The clock-jitter tolerant DAC ...
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Yan, Haiyue (2019-07-16)Commonly used in wireless applications and consumer products, Continuous-time (CT) Sigma Delta (Σ∆) Analog to Digital Converter (ADC) stands out for its high resolution, less input signal conditioning and large incorporating ...
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Ahmed, Ramy 1981- (2012-12-05)The quest for multi-standard and software-defined radio (SDR) receivers calls for high flexibility in the receiver building-blocks so that to accommodate several wireless services using a single receiver chain in mobile ...
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Kotte Prakasam, Pradeep (2010-07-14)Transform-domain (TD) sampling is seen as a potential candidate for wideband and ultra-wideband high-performance receivers and is investigated in detail in this research. TD receivers expand the signal over a set of basis ...
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Zhang, Fan (2010-10-12)This dissertation is mainly focused on the analysis, design and optimization of Low-density parity-check (LDPC) codes over channels with large alphabet sets and the applications on compressed sensing (CS) and flash memories. ...
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Linearity and Noise Improvement Techniques Employing Low Power in Analog and RF Circuits and Systems Abdel Ghany, Ehab (2012-12-07)The implementation of highly integrated multi-bands and multi-standards reconfigurable radio transceivers is one of the great challenges in the area of integrated circuit technology today. In addition the rapid market ...
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Liu, Qiyuan (2017-02-09)The dissertation presents system and circuit solutions to improve the power efficiency and address high-speed design issues of ADCs in advanced CMOS technologies. For image sensor applications, a high-performance digitizer ...
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Valmeekam, Chandra Shekhara Kaushik (2020-07-31)With increasing congestion of Radio Frequency (RF) spectrum, enabling radar and communication systems to coexist is becoming an important area of research for efficient spectrum utilization. Designing radar systems that ...
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Mincey, John Steven (2016-06-13)In this dissertation, a matched filter and coherent digitizer will be presented for pulsed Doppler radar systems. The matched filter is used to filter as much out-of-band thermal noise in the received signal as possible ...
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Berber, Feyza (2017-05-09)GaN devices have been dubbed ‘the future of high frequency, high power applications’ due to the material properties of GaN that promises a clear advantage over competing technologies. Heteroepitaxial growth of AlGaN/GaN ...
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Shiva Kiran, FNU (2018-08-21)There is an ongoing dramatic rise in the volume of internet traffic. Standards such as 56Gb/s OIF very short reach (VSR), medium reach (MR) and long reach (LR) standards for chip to chip communication over channels with ...
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Gomez Diaz, Julian Camilo (2022-07-25)The constant increase in global data generation generated by applications such as internet of things (IoT) and artificial intelligence (AI) calls for an improvement in the speeds at which data is transmitted across ...
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Edward, Alexander (2016-07-12)The design of a single-loop continuous-time ∑∆ modulator (CT∑∆M) with high resolution, wide bandwidth, and low power consumption is very challenging. The multi-stage noise-shaping (MASH) CT∑∆M architecture is identified ...
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Raviprakash, Karthik (2010-10-12)Developing a flexible receiver, which can be reconfigured to multiple standards, is the key to solving the problem of embedding numerous and ever-changing functionalities in mobile handsets. Difficulty in efficiently ...
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Nair, Sanjay Padmanabhan (2016-09-27)The use of an understanding of mechanical properties of tissues for the purposes of medical diagnosis has been going on since the foundation of the medical field as a science. In recent decades, medical ultrasound elastography ...