Picosecond Digital-to-Impulse (D2i) Radiators in Silicon

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dc.contributor.advisorBabakhani, Aydin
dc.contributor.committeeMemberKono, Junichiro
dc.contributor.committeeMemberMittleman, Daniel M
dc.creatorAssefzadeh, Mahdi
dc.date.accessioned2016-01-06T20:24:43Z
dc.date.available2016-01-06T20:24:43Z
dc.date.created2014-12
dc.date.issued2014-11-24
dc.date.submittedDecember 2014
dc.date.updated2016-01-06T20:24:43Z
dc.description.abstractCurrent techniques for terahertz (THz) time-domain spectroscopy (TDS) are based on femtosecond lasers and photoconductive antennas (PCAs). The PCA is the emitter and the detector of THz pulses and includes a THz antenna which is fabricated on a high mobility semiconductor substrate. THz-TDS techniques are used for 3D imaging and non-destructive evaluation of materials in pharmaceutical, medical and security applications. There are a number of limitations with current THz-TDS systems. Femtosecond lasers are expensive and bulky with high power consumption. They also require optical alignments. The delay line and object scanning are performed mechanically. The repetition rate and the radiated power are also limited. A single-chip impulse radiator in silicon can overcome these limitations. It is a high yield and low cost solution and can provide repetition rates of up to 10 GHz. A low power digital trigger is needed instead of an optical pump, without requiring lasers or optical alignments. In this work, direct digital-to-impulse (D2i) radiators are implemented in silicon technologies that can radiate sub-10psec impulses with on-chip antennas. System architecture, broadband phase-linear antenna design, circuit techniques, simulations and measurement results are discussed in this thesis. Also a full-system on-chip 4 by 4 array of D2i radiators are fabricated in silicon that provide beam-steering and spatial coherent combining of impulses.
dc.format.mimetypeapplication/pdf
dc.identifier.citationAssefzadeh, Mahdi. "Picosecond Digital-to-Impulse (D2i) Radiators in Silicon." (2014) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/87707">https://hdl.handle.net/1911/87707</a>.
dc.identifier.urihttps://hdl.handle.net/1911/87707
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectBiCMOS digital integrated circuits
dc.subjectGe-Si alloys
dc.subjectbow-tie antennas
dc.subjectbroadband antennas
dc.subjectfrequency stability
dc.subjectslot antennas
dc.subjecttiming jitter
dc.subjectBiCMOS process
dc.subjectEIRP digital-to-impulse radiator
dc.subjectSiGe
dc.subjectcoherent impulses
dc.subjectdirect digital-to-impulse transmitter
dc.subjectfrequency 10 Hz
dc.subjectfrequency 220 GHz
dc.subjectfrequency stability
dc.subjecton-chip slot bow-tie antenna
dc.subjectradiated impulse
dc.subjectsize 130 nm
dc.subjecttiming jitter
dc.subjectAntenna measurements
dc.subjectBiCMOS integrated circuits
dc.subjectCurrent measurement
dc.subjectIndexes
dc.subjectThree-dimensional displays
dc.subjectTime-frequency analysis
dc.subjectBiCMOS
dc.subjectCoherent Spatial Combining
dc.subjectDirect Digital-to-Impulse Radiator
dc.subjectPicosecond Impulse Radiation
dc.subjectSiGe
dc.subjectSlot Bow-Tie Antenna
dc.titlePicosecond Digital-to-Impulse (D2i) Radiators in Silicon
dc.typeThesis
dc.type.materialText
thesis.degree.departmentElectrical and Computer Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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