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 17 of 17 for “"Spiral inductors"”.
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Design of a high quality factor spiral inductors in RF MCM-D
This thesis studies the design and fabrication of spiral inductors for use in Radio Frequency (RF) applications. A design methodology is developed to search an inductor design space efficiently using existing simulation software. The methodology allows designers to specify a desired inductance, …
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DESIGN, SIMULATION AND OPTIMIZATION OF HIGH Q RF SPIRAL INDUCTORS ON SILICON CHIPS
… radio-frequency integrated circuits, on-chip spiral inductors are widely used due to their low cost and ease of process integration. However, the lossy Si substrate makes the design of high Q passive components difficult. Although there have been many works done to find many methods to improve …
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Compact modelling in RF CMOS technology
… passive device in RFIC design in CMOS is the spiral inductor. A 1-pi model with a novel substrate network is proposed to characterize the broadband loss mechanisms of spiral inductors. Based on the proposed 1-pi model, a physics-originated fully-scalable 2-pi model and model parameter …
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Microelectromechanical Systems (Mems) for Radio Frequency Applications
… RF passive devices (tunable capacitors and inductors) using micromachining technology. First, a new wide-tuning-range tunable capacitor design is proposed and prototype devices are fabricated using surface micromachining technology. This new tunable capacitor has the advantages of simple …
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Formulation, development, and characterization of magnetic pastes and epoxies for thick film inductors
Inductors and transformers constitute two important magnetic components In RF and power hybrids electronic circuitry. Thick film inductors have been subject of extensive research in recent years because they significantly reduce the weight and size, and increase the frequency of operation of …
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RF signal inductors in iUHD for voltage controlled oscillators in configurable RF integrated circuits
… circuitry has resulted in a need for smaller inductors. This thesis presents designs of spiral inductors to be fabricated in Draper Laboratory's integrated Ultra High Density packaging process. The inductor designs are simulated using Ansoft's High Frequency Structure Simulator and the …
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Experimental and analytical study of electrical crosstalk in CMB cold readout systems and implications for power spectra
… fully lithographed LC filters, consisting of spiral inductors and planar parallel-plate or interdigitated capacitors. Nonetheless it carries instrumental systematic effects, among which electrical crosstalk is one of the most critical. This is related to the presence of the filters themselves …
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On-chip self-rolled-up nanomembrane tube inductor for RFIC performance enhancement
… of the commonly used on-chip lumped spiral inductor is highly desirable to reduce the fabrication cost and enhance the performance and functionality of radio frequency integrated circuits (RFICs). Numerous improvement methods have been demonstrated but all fail to fundamentally solve …
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Design of Integrated, Low Power, Radio Receivers in BiCMOS Technologies
… of on-chip LC filtering. Itis shown that on-chip spiral inductors can be designed to resonate with both intentional and parasitic capacitances, forming stable tuned circuits operating from 100 MHz to over 1 GHz. Although the Q of the inductors employed is typically small (Q < 10), negative …
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Modeling and Design of a Three-dimensional Inductor with Magnetic Core
… devices with on-chip devices is imperative. Inductors are one such passive device that is widely used in low noise amplifiers, oscillators, etc. Current on-chip spiral inductors suffer from large parasitics and area for a meager value of inductance and quality factor. The need to overcome …
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SiGe BiCMOS RF ICs and Components for High Speed Wireless Data Networks
… (MIM) capacitors and monolithic spiral inductors, these advanced RF CMOS and SiGe BiCMOS technologies have enabled complete silicon-based RF integrated circuit (RFIC) solutions for emerging wireless communication standards; indeed, both the analog and digital functionalities of an …
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Antennas using left handed transmission lines
… dipole loaded with parallel plate capacitors and spiral inductors presents the best performance in impedance and efficiency, even better than the conventional inductive loading. A planar loop antenna using a ladder network of left handed loading is also presented. Various modes can be obtained in …
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Modeling & Development of Wirelessly Coupled Loops for Chip-to-Antenna Communications
… may be required for large components such as spiral inductors. A parametric model for these coupled loops was developed in this thesis. This model allows for rapid initial dimension choice when provided a variety of different parameters such as the IC process geometry, and loop stack geometry. …
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Circuit and Modeling Solutions for High-Speed Chip-to-Chip Communication
… LC tank consisting of on-chip interleaved spiral inductors and a tunable capacitor array. Through adjusting the load capacitance in parallel with the inductors, the center frequency of the filter is tunable over a range of nearly 5GHz. The design targets a supply voltage of 1.2 volts and …
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Practical realisation of multiband planar filters on multilayer substrates
… are realized on multi-layer substrate, the inductors are implemented as rectangular spiral inductors and Capacitors as broadside coupling plates connected from two different layers through metallic vias. Parasitic that may influence the relative bandwidths.
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Miniaturization of on-chip passive electronic devices by silicon nitride self-rolled-up membrane microtube nanotechnology
… the intrinsic drawbacks of currently used planar spiral platforms for passive lumped elements. A new design platform based on self-rolled-up membrane (S-RuM) nanotechnology that “processes like 2-D and functions like 3-D” is proposed for constructing on-chip three-dimensional (3-D) rolled-up …
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Ottimizzazione di dispositivi planari con avvolgimenti a spirale per applicazioni di compatibilità elettromagnetica
Il presente lavoro di tesi ha preso spunto dalla necessità di sviluppare metodologie efficienti e precise per valutare correttamente il comportamento di un filtro EMI Planare in modo da effettuarne la progettazione ottimale sfruttando gli effetti parassiti per ottenere un dispositivo di dimensioni …