Results 61 to 70 of about 45,299 (236)
Wideband circularly polarized leaky wave rectenna
Scientific ReportsThis paper presents a circular polarized rectenna based on a leaky wave antenna (LWA). Integrating circular polarization with leaky wave radiation greatly improves energy harvesting by minimizing polarization losses and extending the spatial range of ...
Nesma Mohamed +4 more
doaj +1 more source
Laser-Scribed Lossy Microstrip Lines for Radio Frequency Applications
Applied Sciences, 2019 Laser-direct writing has become an alternative method to fabricate flexible electronics, whereas the resistive nature of laser-scribed conductors may distort the radio-frequency characteristics of circuits for high-frequency applications.
Ruozhou Li +7 more
doaj +1 more source
Magnetic Resonance in Medicine, Volume 96, Issue 2, Page 650-665, August 2026.ABSTRACT Purpose Ultrahigh‐field MRI requires careful management of the specific absorption rate (SAR), which is subject and subject‐position dependent. Within‐scan subject motion may exacerbate local SAR exposure, necessitating large safety margins to prevent SAR underestimation, which hampers imaging performance.
Katherine Anna Blanter +4 more
wiley +1 more source
Optimized absorbing boundary conditions for the analysis of planar circuits using the finite difference time domain method [PDF]
, 1993 It is shown that the description of absorbing boundary condition algorithms (ABCs) in terms of single incident plane waves does not provide sufficient information for choosing the best ABC for planar waveguide termination.
Paul, DL +3 more
core +1 more source
Time‐Domain Simulator for Nonuniform Transmission Lines: An Educational Tool
Computer Applications in Engineering Education, Volume 34, Issue 4, July 2026.ABSTRACT The study of transmission lines is a key topic in electrical and electronic engineering education. However, their theoretical formulation can be complex, often hindering students' understanding of the underlying physical phenomena. In contrast, transmission lines exhibit intuitive and engaging behaviors. To address this challenge, we developed
Ruben Tic +4 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.The structure, properties, preparation methods, and characterization techniques of BP. As a typical 2D layered material, black phosphorus (BP) demonstrates exceptional promise in various fields, particularly in energy storage for alkali metal‐ion batteries. However, its distinctive structure and properties, together with the compositional complexity of
Yunqing Wang +7 more
wiley +1 more source
Tecnología y CienciaThe amount of data in today’s communication systems is increasing considerably, which in turn increases the bandwidth needed to deploy a given service. This requires antennas that are capable of operating simultaneously in more than one band.
Juan Eduardo Ise +5 more
doaj +1 more source
Low Insertion‐Loss High Power X‐Band SPDT Transmit/Receive Switches in 250 nm GaN HEMT
Microwave and Optical Technology Letters, Volume 68, Issue 6, June 2026.ABSTRACT We present three X‐band transmit/receive (T/R) switches utilizing single‐pole double‐throw (SPDT) structures in 250 nm GaN HEMT technology. The first T/R switch was designed to achieve low insertion loss by constructing the SPDT structure with a series λ/4 transmission line (T‐line) and meticulously selected two HEMT switches in parallel for ...
Tae‐Hoon Kim +3 more
wiley +1 more source
Genus hologram antenna for MIMO applications
Scientific ReportsA novel high-gain Genus Hologram Antenna (GHA) based on surface impedance modulation using a periodic array of hexagonal patches is proposed for MIMO applications.
Nermeen A. Eltresy +2 more
doaj +1 more source
IEEE AccessThis work presents a very compact microstrip lowpass-bandpass (LP-BP) triplexer, which is designed and analyzed based on a novel structure. Due to its complex design process, this type of triplexer is rarely designed.
Leila Nouri +8 more
doaj +1 more source