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Browsing by Author "Dai, Fa Foster"
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An Accurate CMOS Four-Quadrant Analog Multiplier
Gottiparthy, Ramraj (2006-05-15)
Analog multipliers are used in communication circuits, neural networks as well as frequency doublers, RMS circuits and phase detectors. High linearity is the prime issue for multipliers in conventional applications like ...
Design and Implementation of a Software Defined Radio Receiver for AM Band
Shetye, Kalpesh (2007-08-15)
Since the mid-1990s, the radio industry has actively focused on implementing more and more radio functions in the digital domain. This has been furthered by availability of high speed, high performance data converters and ...
Design and Implementation of High-Speed Low-Power Analog-to-Digital and Digital-to-Analog Converters
Yao, Yuan (2010-04-28)
With the rapid development of modern communication and personal wireless products, there are increased demands for next generation communication transceivers that feature ultra-high data conversion rates with reconfigurable ...
Design of Direct Digital Frequency Synthesizer for Wireless Applications
Chimakurthy, Lakshmi (2005-08-15)
Direct Digital Synthesis can be practically defined as a means of generating highly accurate and harmonically pure digital representations of signals. High speed DDS presents an attractive alternative to use of Phase locked ...
Flip Chip and Lid Attachment Assembly Process Development
Ding, Fei (2006-12-15)
Flip chip technology offers numerous advantages over conventional packages by virtue of its electrical performance, greater input/output (I/O) flexibility and small size. This study focuses on two flip chip assembly process ...
Frequency Syntheses with Delta-Ssigma Modulations and their Applications for Mixed Signal Testing
Yang, Dayu (2006-12-15)
This dissertation presents design and application of two popular frequency synthesizers, namely, the direct digital frequency synthesis (DDS) and phase lock loop (PLL) synthesis.
DDS is a digital technique for frequency ...
Frequency Synthesizer Designs and Their Applications
Deng, Wenting (2007-08-15)
This thesis discusses design and applications of two main frequency synthesizers: direct digital frequency synthesis (DDS) and phase lock loop (PLL) synthesis.
DDS is a quickly developed digital technique for frequency ...
Improved RF Noise Modeling for Silicon-Germanium Heterojunction Bipolar Transistors
Xia, Kejun (2006-12-15)
Accurate radio frequency (RF) noise models for individual transistors
are critical to minimize noise during mixed-signal analog and RF circuit design.
This dissertation proposes two improved RF noise models
for SiGe ...
Injection Locked Frequency Multiplier and Divider for Millimeter-Wave Frequency Synthesis
Zhang, Yucai (2024-04-25) ETD File Embargoed
The perpetual need for faster data rates continues to drive advancements in wired and wireless communication, pushing them toward higher operating frequencies. The upcoming 5G network demands mobile transceivers that can ...
A Linear CMOS Tunable Active Resistor
Hill, Bradford (2008-05-15)
The demand for fast, inexpensive, and accurate sensors is increasing at a staggering
rate. Deciding whether to use analog of digital signal processing for these sensors has become
a challenge. Even though digital systems ...
A Low Power 10 GHz Phase Locked Loop for Radar Applications Implemented in 0.13 um SiGe Technology
Souder, William (2009-04-14)
In today's society there is a growing trend where microwave wireless devices are becom-
ing common in every household and workplace. The increasing desire for these devices is to
create smaller low power devices. There ...
Low Temperature Modeling of I-V Characteristics and RF Small Signal Parameters of SiGe HBTs
Xu, Ziyan (2009-11-11)
SiGe HBT has been attached great attention recently to be used for space exploration due to its high-quality performance compared with conventional Si bipolar transistor over an extremely wide temperature range. The ...
Modeling of Third-order Distortion in Common-Emitter SiGe HBTs Using Mextram 505.00
Ding, Xuewei (2018-06-26)
Mextram is an advanced compact model for bipolar transistors. Mextram 504.12 does
not provide a good OIP3 simulation near peak OIP3. Mextram 505.00 improves peak OIP3
by modifying intrinsic base-collector depletion ...
A Novel ROM Compression Technique and a High Speed Sigma-Delta Modulator Design for Direct Digital Synthesizer
Ghosh, Malinky (2006-05-15)
Traditional designs of high bandwidth frequency synthesizers employ phase locked
loops (PLLs). A direct digital frequency synthesizer (DDFS) provides multiple
advantages over the frequency synthesizers that use PLLs. A ...
On-wafer RF Characterization and Modeling of Noise, Linearity and Reliability of Advanced RF FinFETs
Ding, Xuewei (2024-04-30) ETD File Embargoed
This work investigates the RF characterization and modeling of noise, linearity, and reliability of advanced RF FinFETs. 5-nm technology devices are used in linearity and noise modeling, and 14-nm technology devices are ...
On-wafer S-parameter Measurement Using Four-port Technique and Intermodulation Linearity of RF CMOS
Wei, Xiaoyun (2008-12-15)
Accurate on-wafer characterization of CMOS transistors at extremely high frequencies, e.g. above 60GHz, becomes critical for RFIC designs and CMOS technology development for millimeter wave applications. Traditional two-step ...
A Parallel Implementation of Fault Simulation on a Cluster of Workstations
Han, Kyung (2006-12-15)
Parallel simulation on a cluster workstations is one method by which fault simulation time for large circuits can be reduced significantly. To get near-linear speedups from parallel processing, parallelization methods ...
Phase Locked Loop Analysis and Design
Ratcliff, Marcus (2008-12-15)
The components of the phase locked loop (PLL) circuit discussed in this thesis are
designed for use in a transmit receive (TR) module contracted out to Auburn University by
United States Space and Missile Defense (USSMDC) ...
Power and Performance Optimization of Static CMOS Circuits with Process Variation
Lu, Yuanlin (2007-08-15)
With the continuing trend of technology scaling, leakage power has become a main contributor to power consumption. Dual threshold (dual-Vth) assignment has emerged as an efficient technique for decreasing leakage power. ...
A Pre-distortion Technique for OTA-C Filter Design
Dandamudi, Pradeep (2010-11-16)
The growing demand of continuous filters in portable electronic equipment, wireless receivers and continuous-time (CT) analog-to-digital converters (ADCs) has spawned a strong research interest from industry and academia. ...