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Antenna Impedance Matching Using Deep Learning [PDF]

open access: yesSensors, 2021
We propose a deep neural network (DNN) to determine the matching circuit parameters for antenna impedance matching. The DNN determines the element values of the matching circuit without requiring a mathematical description of matching methods, and it ...
Jae Hee Kim, Jinkyu Bang
doaj   +3 more sources

A Review of Acoustic Impedance Matching Techniques for Piezoelectric Sensors and Transducers [PDF]

open access: yesSensors, 2020
The coupling of waves between the piezoelectric generators, detectors, and propagating media is challenging due to mismatch in the acoustic properties. The mismatch leads to the reverberation of waves within the transducer, heating, low signal-to-noise ...
Vivek T. Rathod
doaj   +3 more sources

Research on the Sensitivity Enhancement Method of Inductive Conductivity Sensors Based on Impedance Matching [PDF]

open access: yesSensors
This paper presents the design and performance evaluation of an inductive conductivity sensor with a double tuning impedance matching network to enhance sensitivity and improve linearity.
Yang Li   +6 more
doaj   +2 more sources

Optimum power transfer in RF front end systems using adaptive impedance matching technique [PDF]

open access: yesScientific Reports, 2021
Matching the antenna’s impedance to the RF-front-end of a wireless communications system is challenging as the impedance varies with its surround environment.
Mohammad Alibakhshikenari   +9 more
doaj   +2 more sources

Dual-Frequency Impedance Matching Network Design Using Genetic Algorithm for Power Ultrasound Transducer [PDF]

open access: yesMicromachines
Dual-frequency ultrasounds have demonstrated significant potential in augmenting thermal ablation efficiency for tumor treatment. Ensuring proper impedance matching between the dual-frequency transducer and the power amplifier system is imperative for ...
Wenchang Huang   +6 more
doaj   +2 more sources

Modeling and impedance matching for radio frequency driven plasma lamp considering cold and hot states. [PDF]

open access: yesPLoS ONE, 2018
A new dual-state impedance matching scheme for a microwave driven plasma lamp using a solid-state power amplifier (SSPA) is presented. The impedance of the plasma lamp depends on the amount of input radio frequency (RF) energy, and therefore has very ...
Wonshil Kang, Hyunchul Ku
doaj   +2 more sources

Optimizing Tonpilz Transducer Transmission Through Impedance Matching and Head Mass Structure [PDF]

open access: yesMicromachines
The bandwidth and output power of underwater acoustic transmitters are important for high-performance sonar detection systems. A mismatch between the impedance of the transducer and the transmitting circuit results in a low power factor, significantly ...
Yang Gou   +5 more
doaj   +2 more sources

Impedance-matched hyperlens [PDF]

open access: yesOptics Letters, 2007
We propose an approach to optical imaging beyond the diffraction limit, based on transformation optics in concentric circular cylinder domains. The resulting systems allow image magnification and minimize reflection losses due to the impedance matching at the input or output boundaries.
Kildishev, Alexander V   +1 more
openaire   +5 more sources

Impedance tracking control of magnetostrictive transducer based on variable stiffness tuning

open access: yesJournal of Science: Advanced Materials and Devices, 2023
A magnetostrictive transducer (MT) is a highly integrated transducer that enables magneto-mechanical energy conversion when outputting actuation motion or force.
Liang Shu   +4 more
doaj   +1 more source

Design and Evaluation of a T-Shaped Adaptive Impedance Matching System for Vehicular Power Line Communication

open access: yesIEEE Access, 2020
The quality of the communication links in VPLC (vehicular power line communication) suffer from an impedance mismatch resulting from fluctuating VPLN (Vehicular Power Line Network) access impedance, which renders the fixed impedance matching circuit ...
Bingting Wang, Ziping Cao, Fei Song
doaj   +1 more source

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