Results 21 to 30 of about 14,468 (289)

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

open access: yes, 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   +5 more
core   +1 more source

Anisotropic leaky-like perturbation with subwavelength gratings enables zero crosstalk

open access: yesLight: Science & Applications, 2023
Electromagnetic coupling via an evanescent field or radiative wave is a primary characteristic of light, allowing optical signal/power transfer in a photonic circuit but limiting integration density. A leaky mode, which combines both evanescent field and
Md Faiyaz Kabir   +5 more
doaj   +1 more source

Analysis and Design of Tunable THz 1-D Leaky-Wave Antennas Based on Nematic Liquid Crystals

open access: yesApplied Sciences, 2022
The tunable properties of nematic liquid crystals (NLC) are here exploited in a peculiar leaky waveguide with artificial magnetic conductors as the lateral walls, a bottom metal ground plane, and a homogenized metasurface on top to obtain dynamic ...
Walter Fuscaldo   +5 more
doaj   +1 more source

MEMS-reconfigurable metamaterials and antenna applications [PDF]

open access: yes, 2014
This paper reviews some of our contributions to reconfigurable metamaterials, where dynamic control is enabled by micro-electro-mechanical systems (MEMS) technology.
Debogovic, Tomislav   +1 more
core   +3 more sources

Single-Side-Scanning Surface Waveguide Leaky-Wave Antenna Using Spoof Surface Plasmon Excitation

open access: yesIEEE Access, 2018
A surface waveguide (SWG) leaky-wave antenna featuring directional single-side beam scanning capability is presented. A novelty of the design is that transition design utilizes the spoof surface plasmon (SSP) as an intermedia to feed the SWG, which ...
Shangkun Ge   +4 more
doaj   +1 more source

Magneto-Electric Dipole Antenna Arrays [PDF]

open access: yes, 2014
A planar magneto-electric (ME) dipole antenna array is proposed and demonstrated by both full-wave analysis and experiments. The proposed structure leverages the infinite wavelength propagation characteristic of composite right/left-handed (CRLH ...
Caloz, Christophe   +2 more
core   +3 more sources

Detection of coatings within liquid-filled tubes and containers by mode conversion of leaky Lamb waves [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2013
In this paper, a new acoustic sensor principle for coating detection within liquid-filled tubes and containers based on mode conversion of leaky Lamb waves is introduced.
M. Schmitt   +6 more
doaj   +1 more source

Leaky-Wave antennas with arbitrary radiation based on bianisotropic Huygens’ metasurfaces [PDF]

open access: yes, 2018
In this contribution, we present the application of Huygens’ metasurfaces (HMS) to the arbitrary design of leaky-wave antennas (LWAs). These metasurfaces have demonstrated their capabiity to tailor the electromagnetic waves at will. We use them to design
Abdo-Sánchez, Elena   +2 more
core   +1 more source

Right/Left-Handed Leaky Rectangular Waveguide with Broadside Radiation Property

open access: yesInternational Journal of Antennas and Propagation, 2021
When a leaky rectangular waveguide is used to realize the coverage of radio wave in the small confined spaces, there will be a shadow region, which influences the coverage performance.
Xingying Huo, Zheng Li
doaj   +1 more source

Surface Leaky Waves and Their Measurement [PDF]

open access: yes1998 28th European Microwave Conference, 1998
A new approach to experimental identification of surface leaky waves on printed-circuit lines is presented in this paper. Active radiometry is used for field probing even in the near field zone. The measurement is adjusted into the X band. The method is demonstrated on the slotline.
Jan Zehentner   +4 more
openaire   +1 more source

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