Results 61 to 70 of about 553,920 (293)

Waveguide-Floquet Mapping Based on Surface Susceptibilities for Metasurface Unit Cell Characterization [PDF]

open access: yes, 2023
A simple method is proposed to characterize metasurface unit cells using rectangular waveguide. The method maps the S-parameters obtained using a dominant-mode waveguide to the S-parameters of fundamental Floquet mode for a plane wave incident at any ...
Shulabh Gupta (11171916)   +3 more
core   +1 more source

Directional Flow of Confined Polaritons in CrSBr

open access: yesAdvanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak   +10 more
wiley   +1 more source

Left handed rectangular waveguide resonator structures [PDF]

open access: yes, 2005
SRRs are constructed as two square-shaped rings, each interrupted by a small gap, as shown in Fig. 1. Embedding small single split resonator elements on a dielectric substrate we obtain negative magnetic permeability for a metamaterials-based ...
Budimir, D., Shelkovnikov, A.B.
core  

AFully Micromachined W-Band Coplanar Waveguide to Rectangular Waveguide Transition [PDF]

open access: yes, 2007
- A novel fully micromachined coplanar waveguide (CPW) to rectangular waveguide transition is presented in this paper.A metalized probe is adopted to couple the signal from the CPW to the rectangular waveguide through an aperture located at the center of
Bo Pan   +4 more
core   +1 more source

Large‐Area Printed PEDOT:PSS Shielding and Frequency Selective Surface (FSS) on Textiles

open access: yesAdvanced Materials Interfaces, EarlyView.
An all‐polymer e‐textile frequency selective surface (FSS) can present controlled shielding, presenting a competitive alternative to metal‐based inks. The results show how PEDOT: PSS‐based e‐textiles could be applied in RF devices for future wearable applications.
Benjamin King, Mahmoud Wagih
wiley   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Substrate Integrated Waveguide Antenna Applications [PDF]

open access: yes, 2015
The research objective of this thesis is to provide a better solution for signal interference and reduce the size of waveguide antenna. The background investigations of different waveguide fabrication technologies and switch control methods are detailed ...
WU, LIANG
core  

Design of Hybrid Folded Rectangular Waveguide Filters With Transmission Zeros Below the Passband

open access: yesIEEE transactions on microwave theory and techniques, 2016
The design and physical implementation of hybrid folded rectangular waveguide filters providing multiple transmission zeros (TZs) below the passband are considered in this paper.
C. Carceller   +3 more
semanticscholar   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

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