<i>ABCD</i> Matrix: A Unique Tool for Linear Two-Wire Transmission Line Modelling

Peres, Pedro L. D.; Souza, Carlos Roberto de; Bonatti, Ivanil Sebastião

doi:10.7227/ijeee.40.3.5

Cited by 24 publications

(14 citation statements)

References 5 publications

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“…To simulate the influence of the cable on the performance of the pulse-echo system, the input impedance of the cable connected to the transducer [93,94] is first estimated as…”

Section: Input Impedance Of Coaxial Cable Connected To a Transducermentioning

confidence: 99%

A Review of Electric Impedance Matching Techniques for Piezoelectric Sensors, Actuators and Transducers

Rathod

2019

Electronics

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Any electric transmission lines involving the transfer of power or electric signal requires the matching of electric parameters with the driver, source, cable, or the receiver electronics. Proceeding with the design of electric impedance matching circuit for piezoelectric sensors, actuators, and transducers require careful consideration of the frequencies of operation, transmitter or receiver impedance, power supply or driver impedance and the impedance of the receiver electronics. This paper reviews the techniques available for matching the electric impedance of piezoelectric sensors, actuators, and transducers with their accessories like amplifiers, cables, power supply, receiver electronics and power storage. The techniques related to the design of power supply, preamplifier, cable, matching circuits for electric impedance matching with sensors, actuators, and transducers have been presented. The paper begins with the common tools, models, and material properties used for the design of electric impedance matching. Common analytical and numerical methods used to develop electric impedance matching networks have been reviewed. The role and importance of electrical impedance matching on the overall performance of the transducer system have been emphasized throughout. The paper reviews the common methods and new methods reported for electrical impedance matching for specific applications. The paper concludes with special applications and future perspectives considering the recent advancements in materials and electronics.

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“…To simulate the influence of the cable on the performance of the pulse-echo system, the input impedance of the cable connected to the transducer [93,94] is first estimated as…”

Section: Input Impedance Of Coaxial Cable Connected To a Transducermentioning

confidence: 99%

A Review of Electric Impedance Matching Techniques for Piezoelectric Sensors, Actuators and Transducers

Rathod

2019

Electronics

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“…The occluded ear canal (space between the terminating edge of the probe eartip and eardrum) was represented as a concatenated sequence of seven rigid-walled, conical segments. Each section was modeled as a lossless two-port network using an ABCD transmission matrix (T ; Peres et al, 2003) of the form…”

Section: Ear-canal Measurementsmentioning

confidence: 99%

Non-invasive estimation of middle-ear input impedance and efficiency

Lewis

Neely

2015

The Journal of the Acoustical Society of America

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A method to transform the impedance measured in the ear canal, Z EC , to the plane of the eardrum, Z ED , is described. The portion of the canal between the probe and eardrum was modeled as a concatenated series of conical segments, allowing for spatial variations in its cross-sectional area. A model of the middle ear (ME) and cochlea terminated the ear-canal model, which permitted estimation of ME efficiency. Acoustic measurements of Z EC were made at two probe locations in 15 normal-hearing subjects. Z EC was sensitive to measurement location, especially near frequencies of canal resonances and anti-resonances. Transforming Z EC to Z ED reduced the influence of the canal, decreasing insertion-depth sensitivity of Z ED between 1 and 12 kHz compared to Z EC . Absorbance, A, was less sensitive to probe placement than Z EC , but more sensitive than Z ED above 5 kHz. Z ED and A were similarly insensitive to probe placement between 1 and 5 kHz. The probe-placement sensitivity of Z ED below 1 kHz was not reduced from that of either A or Z EC . ME efficiency had a bandpass shape with greatest efficiency between 1 and 4 kHz. Estimates of Z ED and ME efficiency could extend the diagnostic capability of wideband-acoustic immittance measurements.

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“…Transmission lines and discontinuities can be modeled as 2-port systems and are represented using ABCD matrices [7]. Thus, the circuit shown in Fig.…”

Section: A Mathematical Modelingmentioning

confidence: 99%

Compact modeling and performance optimization of 3D chip-to-chip interconnects with transmission lines, vias and discontinuities

Kumar

Sharma

Chen

et al. 2012

2012 IEEE International Interconnect Technology Conference

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In this paper we present a compact model for analysis of 3D chip-to-chip interconnect pathways consisting of planar transmission lines, vias, package and pin discontinuities. The model accurately captures signal losses for a wide frequency spectrum with very small error when compared with HSPICE circuit simulations. The interconnect pathway is optimized for maximum bandwidth density and minimum energy-per-bit highlighting the performance improvement obtained using low-k, air-clad planar interconnects over conventional substrate materials.

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ABCD Matrix: A Unique Tool for Linear Two-Wire Transmission Line Modelling

Cited by 24 publications

References 5 publications

A Review of Electric Impedance Matching Techniques for Piezoelectric Sensors, Actuators and Transducers

A Review of Electric Impedance Matching Techniques for Piezoelectric Sensors, Actuators and Transducers

Non-invasive estimation of middle-ear input impedance and efficiency

Compact modeling and performance optimization of 3D chip-to-chip interconnects with transmission lines, vias and discontinuities

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