The Effect of Electrical Impedance Matching on the Electromechanical Characteristics of Sandwiched Piezoelectric Ultrasonic Transducers [PDF]
Sensors, 2017 For achieving the power maximum transmission, the electrical impedance matching (EIM) for piezoelectric ultrasonic transducers is highly required.
Yuan Yang +3 more
doaj +8 more sources
Design of a Broadband Electrical Impedance Matching Network for Piezoelectric Ultrasound Transducers Based on a Genetic Algorithm [PDF]
Sensors, 2014 An improved method based on a genetic algorithm (GA) is developed to design a broadband electrical impedance matching network for piezoelectric ultrasound transducer.
Jianfei An +4 more
doaj +6 more sources
IEEE Access, 2022 Piezoelectric transducer is a key component of acoustic well-logging tool. Transducers used in acoustic well-logging tools usually have limited bandwidth, and their dominant frequencies severely drift with drastic change of borehole temperature when ...
Yongchao Yao +3 more
doaj +3 more sources
MOF-derived carbon materials for efficient electromagnetic interference shielding [PDF]
RSC AdvancesElectromagnetic interference (EMI) shielding has attracted growing attention for broadband and high-frequency electronic systems. Metal–organic framework (MOF)-derived carbons have attracted considerable attention as EMI shielding materials owing to ...
Jun Du +4 more
doaj +2 more sources
A Novel Thickness-Mode Broadband Piezoelectric Ultrasonic Transducer Design Based on Double-Layer Piezoelectric Structure and a Variable-Thickness Matching Layer [PDF]
SensorsA novel broadband ultrasonic transducer design based on a non-uniform-thickness double-layer piezoelectric structure and a variable-thickness matching layer is proposed to overcome the limitations of conventional thickness-mode piezoelectric ultrasonic ...
Qiao Wu +4 more
doaj +2 more sources
ELO-STRIP BASED IMPEDANCE TUNING FOR DUAL-BAND SIW CAVITY-BACKED ANTENNAS FOR MMWAVE APPLICATIONS [PDF]
Scientific ReportsDual-band impedance matching at millimeter-wave frequencies remains challenging due to elevated dielectric losses and limited control over multiple resonances beyond 20 GHz.
E. Jeba Saral Darling, Velmathi Guruviah
doaj +2 more sources
Sensors, 2023 Improving the operational efficiency and optimizing the design of sound navigation and ranging (sonar) systems require accurate electrical equivalent models within the operating frequency range.
Jejin Jang +3 more
doaj +1 more source
Compact Load Network Having a Controlled Electrical Length for Doherty Power Amplifier
IEEE Access, 2022 The load network of the carrier amplifier for the conventional Doherty power amplifier (DPA) consists of an impedance matching circuit, an offset line, and a $\lambda $ /4 transmission line (TL), so that the overall electrical length of the network can ...
Kuhyeon Kwon +12 more
doaj +1 more source
Study on Electrical Impedance Matching for Broadband Ultrasonic Transducer
Journal of the Korean Society for Nondestructive Testing, 2017 Ki-Bok Kim, Geonwoo Kim
exaly +3 more sources
GHz operation of a quantum point contact using stub-impedance matching circuit
Physics Open, 2023 Quantum point contacts (QPC) are the building blocks of quantum dot qubits and semiconducting quantum electrical metrology circuits. QPCs also make highly sensitive electrical amplifiers with the potential to operate in the quantum-limited regime. Though
Anusha Shanmugam +5 more
doaj +1 more source