Results 31 to 40 of about 921 (256)
IEEE Access, 2023 A rectangular metallic leaky waveguide loaded with liquid crystals (LC) and operating in its fundamental TE mode at 1 THz is proposed to mitigate the well-known trade-off between directivity and tunable angular range of dynamic beamscanning antennas. The
Walter Fuscaldo +4 more
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Performance of a Planar Leaky-Wave Slit Antenna for Different Values of Substrate Thickness [PDF]
Journal of the Korean Institute of Electromagnetic Engineering and Science, 2017 This paper presents the performance of a planar, low-profile, and wide-gain-bandwidth leaky-wave slit antenna in different thickness values of high-permittivity gallium arsenide substrates at terahertz frequencies.
Niamat Hussain +2 more
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Sensors, 2023 A detachable miniaturized three-element spirals radiator button antenna integrated with a compact leaky-wave wearable antenna forming a dual-band three-port antenna is proposed.
Tale Saeidi +2 more
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Analysis of micro-slotline leaky wave antenna with FDTD
Tongxin xuebao, 2006 The FDTD method modeled the micro-slotline leaky wave antenna successfully.The traveling wave of micro-slotline leaky-wave antenna in leaky region had been shown up with FDTD method.A new and effective equation was proposed,to calculate the complex ...
LI Yuan-xin, LONG Yun-liang
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IEEE Access, 2020 A class of 45° linearly polarized and circular polarized high scanning rate leaky wave antennas are proposed in this paper, which is based on slow-wave substrate integrated waveguide structure.
Jianwen Zhong +2 more
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Plasmonic leaky wave antenna based on modulated radius of cylindrical graphene waveguide
AIP Advances, 2021 In this paper, the concept, analysis, and synthesis of a novel plasmonic leaky wave antenna (LWA) based on the modulated radius of a cylindrical graphene waveguide (CGW) at the terahertz band are presented. Devices based on the planar graphene waveguide (
Hadi Soleimani, Homayoon Oraizi
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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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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
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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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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