Results 31 to 40 of about 42,931 (308)
IEEE AccessThis paper presents the design and implementation of an X-band horn antenna, which operates over a frequency range of 7 – 9 GHz for small satellite communication systems in Low Earth Orbit (LEO), employing metamaterials and 3D printing technology.
Ji-Haeng Cho +3 more
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All-Textile Corrugated Ground SIW Horn Antenna for Millimeter-Wave WBAN Applications [PDF]
Journal of Electromagnetic Engineering and Science, 2019 An all-textile H-plane substrate integrated waveguide (SIW) horn antenna for millimeter-wave wireless body area network applications is proposed. A coaxially fed SIW H-plane horn is designed for radiation toward a human body surface.
Seongkyu Lee, Jaehoon Choi
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Focal axis resolver for offset reflector antennas [PDF]
, 1983 Method and apparatus for determining the focal axis of an asymmetrical antenna such as an offset paraboloid reflector whose physical rim is not coincident with the boundary of the electrical aperture but whose focal point is known is provided.
Schmidt, R. F.
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Optical horn antennas for efficiently transferring photons from a quantum emitter to a single-mode optical fiber [PDF]
, 2013 International audienceWe theoretically demonstrate highly efficient optical coupling between a single quantum emitter and a monomode optical fiber over remarkably broad spectral ranges by extending the concept of horn antenna to optics.
Baida, Fadi Issam +3 more
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Porous Iridium Oxide Inverse Opal Catalysts Enable Efficient PEM Water Electrolysis
Advanced Materials, EarlyView.Porous iridium‐based inverse opal (IrOx‐IO) structures are introduced as high‐performance, unsupported PEM‐WE anode catalysts. Their electrochemical behavior is analyzed through porosity/surface area tuning, voltage breakdown, and circuit modeling.
Sebastian Möhle +4 more
wiley +1 more source
Gain and Radiation Pattern Enhancement of the H-Plane Horn Antenna Using a Tapered Dielectric Lens
IEEE Access, 2019 The design of a high-gain and low-profile H-plane horn antenna embedded into a large metallic platform is proposed. The antenna is composed of three parts: coaxial-to-ridged transition, wideband H-plane antenna, and dielectric lens. The coaxial-to-ridged
Ping Wang, Qi Wu, Rong-Bu He, Wei Luo
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Aluminium Feeds for Reflector for NadirSAR [PDF]
, 2018 With the long term aim of developing a NadirSAR quadrotor UAV system specialized for monitoring broad acre grain fields, a large aperture load bearing antenna to use as the main structural element was sort.
Gray, Derek, Le Kernec, Julien
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Advanced Materials Technologies, EarlyView.An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim +4 more
wiley +1 more source
Scattering characteristics of antennas in cyberspace
工程科学学报, 2020 5G network technology can meet the high requirements of cyberspace development in the performance of communication platforms. Massive MIMO (multiple-input multiple-output) antenna array is one of the core technologies of 5G. The mutual coupling effect of
Jian-zhong CHAI +4 more
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Horn feed having overlapping apertures Patent [PDF]
, 1970 Characteristics of antenna horn feeds consisting of central horn with overlapping peripheral ...
Clark, R. T.
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