Results 61 to 70 of about 5,179 (216)
IET Microwaves, Antennas & Propagation, 2021 Herein, a dual‐band bandpass filter with bandwidth tuning and constant bandwidth centre frequency tuning is presented, where the first and second bands are, respectively, of two and three modes.
Shriman Narayana +2 more
doaj +1 more source
Small Structures, Volume 7, Issue 8, August 2026.This review highlights recent advancements in smart wearable biosensors for non‐invasive, microneedle‐based health monitoring via physiological fluids. It focuses on functional materials, biomarker detection strategies, sensor integration and validation methods.
Shuva Bhowmik, Azam Ali
wiley +1 more source
Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain
Advanced Materials, Volume 38, Issue 32, 8 June 2026.A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha +14 more
wiley +1 more source
2D Materials Empowered Radar Absorbing Materials: A Review
Advanced Electronic Materials, Volume 12, Issue 12, 22 June 2026.Recent progress in 2D materials empowered radar absorbing materials (RAMs) is reviewed, highlighting four key structural design strategies that enhance electromagnetic wave absorption. Porous structures, heterogeneous interfaces, printed metamaterials, and tunable metasurfaces are compared in terms of their governing physics, fabrication complexity ...
Yujie Zhong +4 more
wiley +1 more source
Advanced Functional Materials, Volume 36, Issue 37, 7 May 2026.Ferroelectric memcapacitors enable non‐volatile, voltage‐programmable capacitance tuning for adaptive electronics. A TiN/HfZrO/TiN device stack demonstrates more than eight stable capacitance states within a 24 pF memory window in compact 60 ×$\times$ 60 μm2$\umu{\rm m}^{2}$ devices at low operating voltages.
Deepika Yadav +6 more
wiley +1 more source
Simulation and Fabrication of Broadband Tunable Phase Shifter Based on Transmission Line Metamaterial [PDF]
Radioengineering, 2019 This paper presents a kind of broadband, low-loss tunable phase shifter based on transmission line metamaterial. An inherent high-pass backward-wave response property of a left-handed metamaterial based on coplanar waveguide (CPW) transmission line was ...
S. Sheng, H. X. Chen, J. Wen, H. R. Liu
doaj
Independently Tunable Concurrent Dual-Band VCO Using Square Open-Loop Resonator
IEEE Access, 2018 A concurrent dual-band voltage-controlled oscillator (VCO) with independently tunable dual oscillation frequencies is proposed. A shared square open-loop dual-mode resonator and two varactor diodes are the basic units offering flexible tuning for the ...
Boqiong Li +3 more
doaj +1 more source
Spoof Surface Plasmon Polaritons in Terahertz Integrated Circuits
Advanced Photonics Research, Volume 7, Issue 5, May 2026.Terahertz integrated circuits (THz ICs) face challenges from wavelength‐scale dimensions and parasitic effects. Spoof surface plasmon polaritons (SSPPs) provide strong confinement and enhanced near fields, enabling novel transmission and modulation mechanisms.
Xuanru Zhang, Ze Kai Wang, Tie Jun Cui
wiley +1 more source
Computer Applications in Engineering Education, Volume 34, Issue 3, May 2026.ABSTRACT In engineering education, a “fidelity‐accessibility trade‐off” persists: accessible web simulations often lack physical accuracy, while complex industrial tools impose heavy cognitive loads. This hinders effective instruction in semiconductor physics in remote, hardware‐constrained environments.
Ali Akyüz +2 more
wiley +1 more source
Varactor tuned dual-band Wilkinson power divider
, 2009 In this paper varactor tuned dual-band Wilkinson power divider for dual band applications is presented. A new power divider circuit for dual-band operation was modified by adding varactor diodes as tunable elements.
Budimir, D., Draskovic, D.
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