Results 41 to 50 of about 87,553 (311)
Impedance Matching Network Based on Metasurfaces (2-D Metamaterials) for Electrically Small Antennas [PDF]
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, 2020 The paper shows the gain-bandwidth limitations of traditional discrete component matching used in electrically small antennas can be overcome by implementing the impedance matching network with metasurface. The proposed metasurface can optimize maximum power transfer to electrically small antennas and achieve superior broadband performance.
Alibakhshikenari M. +5 more
openaire +2 more sources
High-Power Wire Bonded GaN Rectifier for Wireless Power Transmission
IEEE Access, 2020 A novel wire bonded GaN rectifier for high-power wireless power transfer (WPT) applications is proposed. The low breakdown voltage in silicon Schottky diodes limits the high-power operations of microwave rectifier.
Sumin David Joseph +5 more
doaj +1 more source
Precision Design and Fabrication of Noise-free High-Frequency Amplifier Board for Enhanced Signal Processing [PDF]
ITM Web of Conferences, 2023 An optical signal processing system is widely used for long-distance signal transmission with high speed and low attenuation. It plays a fundamental role in optical communication systems that involves transmitting, receiving, amplifying, and manipulating
Narvekar Sonal, Sharma Kadambari
doaj +1 more source
Generating All Two-MOS-Transistor Amplifiers Leads to New Wide-Band LNAs [PDF]
, 2001 This paper presents a methodology that systematically generates all 2-MOS-transistor wide-band amplifiers, assuming that MOSFET is exploited as a voltage-controlled current source. This leads to new circuits.
Bruccoleri, Federico +2 more
core +3 more sources
Electromagnetic Energy Sink [PDF]
, 2015 The ideal black body fully absorbs all incident rays, that is, all propagating waves created by arbitrary sources. The known idealized realization of a black body is the perfectly matched layer (PML), widely used in numerical electromagnetics.
Maslovski, Stanislav I. +4 more
core +3 more sources
Ultrasonic Air Coupled Transducer Output Impedance Measurement Technique
Elektronika ir Elektrotechnika, 2019 Estimation of the output impedance of ultrasonic transducers is required for electrical matching circuits design and for receiving amplifiers noise optimization.
Linas Svilainis +2 more
doaj +1 more source
Optimal Planar Electric Dipole Antenna
, 2019 Considerable time is often spent optimizing antennas to meet specific design metrics. Rarely, however, are the resulting antenna designs compared to rigorous physical bounds on those metrics. Here we study the performance of optimized planar meander line
Capek, Miloslav +6 more
core +2 more sources
Experimental investigation of inter-element isolation in a medical array transducer at various manufacturing stages [PDF]
, 2016 This work presents the experimental investigation of vibration maps of a linear array transducer with 192 piezoelements by means of a laser Doppler vibrometer at various manufacturing finishing steps in air and in water.
Bini, Fabiano +2 more
core +1 more source
Design of Howland current sources using differential evolution optimization
Journal of Electrical Bioimpedance, 2020 Howland circuits have been widely used in Electrical Bioimpedance Spectroscopy applications as reliable current sources. This paper presents an algorithm based on Differential Evolution for the automated design of Enhanced Howland Sources according to ...
Morcelles Kaue Felipe +2 more
doaj +1 more source
Meshed High-Impedance Matching Network-Free Rectenna Optimized for Additive Manufacturing
IEEE Open Journal of Antennas and Propagation, 2020 Additive manufacturing using direct-write or screen printing represent low-waste methods for fabricating antennas on low-cost flexible substrates. To realize rectennas using low-resolution printing methods, high-impedance antennas with simple printable ...
Mahmoud Wagih +2 more
doaj +1 more source