Results 41 to 50 of about 102,740 (338)

Acoustic Leaky-Wave antenna

2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, 2014
In the last years, the number of studies carried out in the field of acoustic metamaterials has significantly increased. In year 2009, our group proposed a concept of acoustic composite right/left hand transmission line (CRLH-TL) metamaterial, consisting of a waveguide periodically loaded with membranes along the duct, and transverse open channels ...
Esfahlani Hussein, Karkar Sami, Lissek Hervé   +2 more
openaire   +2 more sources

Pencil-Beam Single-point-fed Dirac Leaky-Wave Antenna on a Transmission-Line Grid

, 2016
Leaky-wave antennas (LWAs) are widely used as single-point-fed linear antenna arrays. The extension of LWAs to 2D implies that they can be used as single-point-fed 2D antenna arrays without requiring a complex feeding network.
Dorrah, Ayman H., Eleftheriades, George V.   +1 more
core   +1 more source

Monitoring of atopic dermatitis using leaky coaxial cable [PDF]

, 2017
In our daily life, inadvertent scratching may increase the severity of skin diseases (such as atopic dermatitis, etc.). However, people rarely pay attention to this matter, so the known measurement behavior of the movement is also very little ...
Abbasi, Qammer Hussain, Dong, Binbin, Haider, Daniyal, Hu, Fangming, Ren, Aifeng, Shah, Syed Aziz, Yang, Xiaodong, Zhang, Zhiya, Zhao, Nan, Zhao, Wei   +9 more
core   +1 more source

High Efficiency and Broadband Microstrip Leaky-Wave Antenna

Active and Passive Electronic Components, 2008
A novel layout of leaky-wave antennas based on tapered design has been proposed and investigated. The new tapered leaky-wave antenna (LWA) was designed running a simple procedure which uses an FDTD code, and using a suitable metal walls down the ...
Onofrio Losito
doaj   +1 more source

Beam-Scanning Orbital Angular Momentum Circular Leaky-Wave Antenna With a Half-Mode Corrugated Substrate Integrated Waveguide

IEEE Antennas and Wireless Propagation Letters
This letter presents a novel circular leaky-wave antenna (CLWA) on a half-mode inter-digitated capacitor based corrugated substrate integrated waveguide (HM-IDC-CSIW) to produce a beam-scanning orbital angular momentum (OAM) wave.
Aakash Bansal, William G. Whittow
semanticscholar   +1 more source

Design Aspects of a Broadband Beam-Reconfigurable Leaky-Wave Antenna [PDF]

, 2016
Design aspects of a novel beam-reconfigurable pla-nar series-fed array are addressed to achieve beam steering with frequency tunability over a relatively broad bandwidth.
Abdo-Sánchez, Elena, Camacho-Peñalosa, Carlos, Frías, C., Martin-Guerrero, Teresa Maria, Ng-Molina, Francisco Yak, Palacios, D.   +5 more
core   +1 more source

InP-Based THz Beam Steering Leaky-Wave Antenna

IEEE Transactions on Terahertz Science and Technology, 2021
For mobile THz applications, integrated beam steering THz transmitters are essential. Beam steering approaches using leaky-wave antennas (LWAs) are attractive in that regard since they do not require complex feeding control circuits and beam steering is ...
P. Lu, T. Haddad, Benedikt Sievert, B. Khani, S. Makhlouf, S. Dülme, José Luis Fernández Estévez, A. Rennings, D. Erni, U. Pfeiffer, A. Stöhr   +10 more
semanticscholar   +1 more source

Improving directional radiation quality based on a gradient amplitude acoustic leaky wave antenna

New Journal of Physics, 2019
In this work, we show how to modify radiation amplitude with a leaky wave antenna to improve the quality of sound radiation. The designed gradient amplitude leaky wave antenna consists of a straight pipe with periodically loaded membranes, open channels ...
Jun Lan, Xiuyuan Peng, Xiaowei Zhang, Xiaozhou Liu, Yifeng Li   +4 more
doaj   +1 more source

Guiding and Leakage Dispersion Characteristic of TM01Mode in a Circular Dielectric Rod

International Journal of Antennas and Propagation, 2022
Open dielectric waveguide structures such as circular dielectric rods can be used as antennas by leaking energy in the transverse direction or as guiding structures with low loss in integrated circuits at different frequency ranges.
Ersoy Kelebekler
doaj   +1 more source

Numerical Modeling of Tank Cars Carrying Hazardous Materials With and Without Composite Metal Foam

Advanced Engineering Materials, EarlyView.
Large‐scale puncture models consisting of hazardous materials (HAZMATs) tank car with protective steel–steel composite metal foam (S–S CMF) are solved numerically. Tank car plate with added 10.91–13.33 mm thick S–S CMF layer does not puncture. Protective S–S CMF absorbs impact energy, reduces plate deformation, and prevents shear bands formation ...
Aman Kaushik, Afsaneh Rabiei
wiley   +1 more source