Results 61 to 70 of about 914 (194)
Miniaturization of Dielectric Resonator Antenna by Using Artificial Magnetic Conductor Surface
IEEE Access, 2020 In this work, a dielectric resonator antenna (DRA) is miniaturized by using Artificial Magnetic conductor (AMC) surface without disturbing other important parameters.
Shahid Khan +6 more
doaj +1 more source
Chiral Nanohoops as an Efficient Spin Polarization System
Advanced Functional Materials, Volume 36, Issue 25, 26 March 2026.Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintronics applications. Abstract A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient ...
Anu Gupta +4 more
wiley +1 more source
IET Microwaves, Antennas & Propagation, 2022 A low‐profile printed dipole antenna (PDA) backed by a broadband Giuseppe Peano fractal artificial magnetic conductor (AMC) is introduced for wireless communications.
Hossein Malekpoor +2 more
doaj +1 more source
Passive Artificial Magnetic Conductor (AMC) Reflector for Far-Field Beam Steering
2024 54th European Microwave Conference (EuMC)This paper presents a 21×21 passive artificial magnetic conductor (PAMC) surface aimed at achieving fixed beam steering of +30◦ at 10 GHz, featuring a measured beam steering bandwidth ranging from 9.75 GHz to 10.75 GHz. By optimizing its placement relative to the wave source, the PAMC facilitates an additional 60◦ of beam steering in both the azimuth ...
Al Nahiyan, Swad +3 more
openaire +2 more sources
Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.Natural fliers achieve remarkable aerial performance through diverse wing neuromechanical systems integrating actuation, sensing, and control. This study synthesizes neuromechanical architectures in insects and hummingbirds, identifying two key functional types‐Dual Neural‐Mechanical Oscillator and Neurally‐modulated Mechanical Oscillator‐ and ...
Suyash Agrawal +4 more
wiley +1 more source
, 2012 The general properties of a frequency selective surface loaded with negative impedance converter (NIC)-based active loads are discussed from a theoretical perspective.The stability problem associated with NIC circuits embedded in artificial magnetic ...
Ding, Yuan +3 more
core +1 more source
Whistler‐Mode Waves in the Density Double Ducts
Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.Abstract We report the recent observation of a density duct structure in the equatorial plasmasphere, identified using data from the NASA Van Allen Probes (RBSP). The structure consists of a low‐density duct located above a high‐density duct, forming a “double duct” system capable of simultaneously trapping and guiding multiple whistler‐mode waves at ...
Salman A. Nejad, Anatoly V. Streltsov
wiley +1 more source
Single-band zigzag dipole artificial magnetic conductor [PDF]
, 2012 A new Artificial Magnetic Conductor (AMC) structure called zigzag dipole is discussed. Based on the 0.92GHz straight dipole AMC, the zigzag dipole AMC operating at 0.92GHz, 2.45GHz and 5.8GHz are carried out using TLC-32 and RF-35 boards.
Abu, Maisarah +3 more
core
IEEE Access, 2020 In this paper, a novel planar active artificial magnetic conductor (AAMC) frequency-reconfigurable antenna printed on an FR4 substrate is proposed. Its AAMC metal pattern in a unit cell consists of a compound-five-ring nesting (CFRN) structure.
Shuhui Yang +4 more
doaj +1 more source
Advanced Intelligent Systems, Volume 8, Issue 2, February 2026.A machine learning framework is developed for the inverse design of 4D‐printed active composite plates. It utilizes a forward model to predict shapes from patterns and an inverse model to suggest initial patterns for desired shapes. This framework integrates a genetic algorithm to refine the predicted patterns, ensuring higher accuracy in achieving ...
Teerapong Poltue +4 more
wiley +1 more source