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 38 for “"Transmission Line Model"”.
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An inverse transmission line model of the lower limb arterial system
Includes bibliography. Includes disk in pocket at back of book.
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Signal integrity diagnosis and distributed physical-based transmission line model development for PCIe 5.0 connector
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Analysis of a composite dielectric-ferrite loaded resonator using the transmission line model with application to a tunable dual mode bandpass filter
… to give a fast frequency analysis using the Transmission Line Method (TLM). The TLM analysis is compared to a full wave EM simulation as well as results from the Experimental Model to insure compliance and validation. A suggestion is included to improve and modify the initial Experimental …
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Fast transient simulation of pinceti surge arrester model on a transmission line using ATP Software
… on power system. Over voltages problem at the transmission line can cause flashover voltage at the insulator string, power system disturbances and transformer failure. To prevent of insulator string and equipment of the power system from damaging effect by lightning overvoltage, metal oxide …
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Arterial blood pressure estimation using ultrasound technology and transmission line arterial model
This thesis describes the application of a transmission line model to arterial measurements in order to derive useful cardiovascular parameters. Non-invasive ultrasound techniques are used to make these measurements, which has several benefits over invasive methods such as arterial catheterization. …
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Time domain synthesis applied to modeling of microwave structures and material characterization
… and the complex permeability in a stripline geometry is presented. The new technique uses both Time Domain Reflectometry (TDR) and Time Domain Transmission (TDT) measurements for determining an optimum frequency dependent lossy transmission line model for the stripline under test. The …
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Modelling of Electromagnetic Surface Wave Propagation for High-Speed Communications
… wires. This thesis establishes novel analytic models, numerical simulations and experimental results in these areas and uses these insights to assess the application of surface waves with particular focus on telecommunications. To begin with, well-known surface wave solutions are reviewed. …
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CAD Implementation of Finite Difference Algorithms for the Analysis of High -Speed Circuits
… details the implementation of an n-port transmission line model into SPICE3f4, which also enables the integration of external simulation programs for n-port devices. Next this dissertation also shows the integration of LIM into SPICE, which produce an easy-to-use, and powerful simulator, …
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Characterization and modeling of crosstalk noise in digital systems and microwave applications
… dissertation presents the characterization and modeling of crosstalk noise based on the theory of coupled microstrip lines. An equivalent circuit model used in this work comprises of the addition of mutual inductances and mutual capacitances to the fundamental transmission line model. …
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Investigation of the high-frequency effects in Mn-Zn ferrites for EMI filter applications
… flux is introduced based on a 1-D analytical model, a novel shell-based transmission-line model, and finally, based on the FEM and Maxwell 3D eddy-current field solver. These models are used to calculate the complex permeability characteristics for various core sizes made of two materials: …
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A frequency reconfigurable slot antenna with a conductive microfluidic switching mechanism
… handle high power levels. Diodes suffer from nonlinear effects while RF MEMS have issues with self-actuation and stiction. Fluidic reconfiguration mechanisms provide an alternative to these devices which do not suffer from the same effects due to their passive behavior that is not influenced by …
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Model Validation and Inversion of Active Implantable Medical Devices
The model validation and inversion for active implantable medical devices (AIMD) used for safety evaluations under magnetic resonance imaging (MRI) radio frequency (RF) coil emission were discussed. A mathematical derivation is presented to provide guidance on selecting meaningful pathways for the …
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Ground Plane Slot Structures for Isolation of Cosited Microstrip Antennas
… have already been reported, no analytical model exists to describe their behavior and there are no design guidelines. In this work, the behavior of reported ground plane structures is used as a clue to obtain generalizable information about such structures' behavior. The structures' …
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Impact of cable bleeding towards cable characteristics and performance in VDSL2 ang g.fast technologies
… using very high-speed digital subscriber line transceivers 2 (VDSL2) (30a) has been proven to offer up to 50 Mbps upstream (US) and 100 Mbps downstream (DS) bandwidths at lower than 1 km distance. This application has been reckoned as a widely deployed broadband technology, with the latest …
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Application of supervised and unsupervised learning to analysis of the arterial pressure pulse
… wave shape is first investigated by study of a transmission line model of the arterial tree. A meta-database of pulse waveforms obtained by the SphygmoCor"Җ" device is then analysed by the unsupervised learning technique of Self Organising Maps (SOM). The map patterns indicate that the observed …
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Theory of optical rectification in a travelling wave structure
… structure coupled by a second order nonlinearity. Emphasis is laid upon the generation of ultrashort electrical transients via optical rectification (OR) as well as cascading effects due to the interplay of OR and the linear electro-optic effect. A simple transmission line model is …
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MOCVD nitridinių p-i-n struktūrų formavimas spinduliuotės jutikliams /
… step, variety of measurements were carried out. Transmission line model (TLM) were used to determine sheet and specific contact resistances. It was found that post-growth contact annealing in oxygen-containing atmosphere facilitates in activating Mg dopants and increasing p-type GaN electrical …
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Mixed (ion and electron) conducting polymers, with applications in batteries
… bias potential. The results were fitted with a transmission line model and revealed an electronic conductivity varying from 4.20 x10-10 to 1.69 x10-5 S/cm dependent on the doping level, and a relatively constant ionic conductivity of 1.74 x10-6 S/cm. Oxidative treatment by overdoping resulted in …
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Microprocessor applications to the phenomena associated with high-voltage transmission line transients
The methods for determining transmission line energisation overvoltages incorporate the traditional analogue Transient Network Analyser approach and the more recent mathematical techniques developed for the digital computer. The combination of the two technologies suggest a hybrid T N A system …
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