Results 41 to 50 of about 3,502 (339)
IEEE Access, 2023 In this study, a novel antenna design is proposed for designing a frequency-reconfigurable wide-angle beam scanning antenna and applied to a squarely modulated reactance surface leaky wave antenna.
Doohyun Yang, Sangwook Nam
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Leaky wave antenna for millimeter wave utilization
Journal of Physics: Conference Series, 2021 Abstract The simulation of planar periodic leaky-wave antenna for ultra-wideband application is introduced here. The antenna proposed here comprises 15 matched unit cells with high directivity which provides a backward to forward beam scanning range of 80° with frequency from 24.4GHz to 27.5GHz and has filtering capability making the ...
Ruchi Agarwal +3 more
openaire +1 more source
IEEE Antennas and Wireless Propagation LettersThis 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
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 +4 more
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Multibeam Leaky-Wave Antenna for Mm-wave Wide-Angular-Range AoA Estimation
European Conference on Antennas and Propagation, 2022 The design of a periodic leaky-wave antenna for angle-of-arrival (AoA) estimation is presented. Thanks to multiple radiating space harmonics, a multibeam operation is achieved in order to scan a large angular range with a limited fractional frequency ...
J. Sarrazin, G. Valério
semanticscholar +1 more source
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
Periodic transmission lines for leaky-wave antenna applications at millimeter wavelengths [PDF]
, 2014 This thesis focuses on planar leaky-wave antennas based on periodic transmission lines with resonant loads also called metamaterial transmission lines operating at millimeter waves.
Zvolensky, Tomas
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Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Design of a Polarization-Diverse Planar Leaky-Wave Antenna for Broadside Radiation
IEEE Access, 2019 The design of a K-band radial leaky-wave antenna is presented for polarization diversity applications. The antenna structure is constituted by an annular, radially periodic, and metallic strip grating printed on top of a single-layer grounded dielectric ...
Davide Comite +6 more
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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
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