Results 101 to 110 of about 9,348 (290)

On the use of bianisotropic huygens' metasurfaces to build leaky-wave antennas [PDF]

, 2019
The Electromagnetics AcademyHuygens' metasurfaces are considered a powerful tool to achieve anomalous electromagnetic field transformations. They consist of an artifcial surface built of pairs of collocated electric and magetic dipoles that force the ...
Abdo Sánchez, Elena, Chen, M., Eleftheriades, G. V., Epstein, Ariel   +3 more
core  

Mode Bifurcation and Fold Points of Complex Dispersion Curves for the Metamaterial Goubau Line

, 2009
In this paper the complex dispersion curves of the four lowest-order transverse magnetic modes of a dielectric Goubau line ($\epsilon>0, \mu>0$) are compared with those of a dispersive metamaterial Goubau line.
D. R. Bowling, Gilmore R., Hrabar S., Klaus Halterman, Lovat G., P. L. Overfelt, Poston T., Simin Feng, Stratton J. A., Waldron R. A.   +9 more
core   +1 more source

3D‐Printed Dynamic Heart Model With Left‐Side Anatomy and Integrated Sensor for Edge‐to‐Edge Repair and Regurgitation Reduction

Advanced Materials Technologies, EarlyView.
This work presents a fully synthetic, 3D‐printed dynamic heart model with left‐side anatomy featuring sutured mitral valve chordae tendineae analogs, embedded actuators for physiologic wall contraction, and customized flexible pressure sensors for the left ventricle.
Alejandro Guillen Obando, Hongyi Shen, Myles McGovern, Yusen Zhang, Vivien Lin, Darryl Fu, Ryan Baumwart, Kaiyan Qiu   +7 more
wiley   +1 more source

Multi-Layer Beam Scanning Leaky Wave Antenna for Remote Vital Signs Detection at 60 GHz. [PDF]

Sensors (Basel), 2023
Mingle S, Kampouridou D, Feresidis A.
europepmc   +1 more source

Microstructured Electrode‐Piezopolymer Interface for Ultrasound Transducers With Enhanced Flexibility and Acoustic Performance

Advanced Materials Technologies, EarlyView.
Flexible piezopolymer ultrasound transducers are engineered by tailoring the electrode–piezopolymer interface using metallic, flake‐based, and porous graphene electrodes. Laser‐induced graphene's porous structure enables polymer infiltration, strengthening interfacial coupling and enhancing piezoelectric response and acoustic output.
Spencer Hagen, Dulcce A. Valenzuela, Parag V. Chitnis, Shirin Movaghgharnezhad   +3 more
wiley   +1 more source

Miniaturized V-band circularly polarized leaky-wave antenna with continuous radiation coverage using modified waveguide and metasurface CSRRs. [PDF]

Sci Rep, 2023
Torabi Y, Oraizi H, Araghi A, Khalily M.
europepmc   +1 more source

A Broadband Bow-Tie Cavity-Backed Slot for Traveling-Wave Arrays in the Millimeter-Wave Band [PDF]

, 2019
The use of bow-tie geometries to enhance the characteristics of a radiating element previously proposed by the authors is presented. The previous element consisted of a broadband cavity-backed slot in transmission configuration. The bow-tie shape of the
Abdo Sánchez, Elena, Camacho-Peñalosa, Carlos, Hernández Escobar, Alberto   +2 more
core  

Flexible-Resolution, Arbitrary-Input and Tunable Rotman Lens Spectrum Decomposer (RL-SD)

, 2017
We present an enhanced design -- in terms of resolution flexibility, input port position arbitrariness and frequency-range tunability -- of the planar Rotman lens spectrum decomposer (RL-SD).
Akbarzadeh, Alireza, Caloz, Christophe, Wang, Xiaoyi, Zou, Lianfeng   +3 more
core   +1 more source

Molecular Appendix Adjusted Architectural Propagations of Red‐Light Controlled Macroscopic Photoactuating Performances

Advanced Robotics Research, EarlyView.
Amphiphilic chloroazobenzenes, bearing different amino acids as end groups alanine, phenylalanine, and valine, exhibit excellent photoisomerizations. Varying structures of three amino acid groups participate in supramolecular formations and therefore photoinduced morphological transformations via adjusting intermolecular interactions. These interaction
Shuangshuang Meng, Ming‐Hin Chau, Takashi Kajitani, Franco King‐Chi Leung   +3 more
wiley   +1 more source

A self-matched leaky-wave antenna for ultrahigh-field magnetic resonance imaging with low specific absorption rate. [PDF]

Nat Commun, 2021
Solomakha G, Svejda JT, van Leeuwen C, Rennings A, Raaijmakers AJ, Glybovski S, Erni D.   +6 more
europepmc   +1 more source