Results 221 to 230 of about 705 (258)

Uniform Waveguide Leaky Wave Antennas

SPIE Proceedings, 1985
Traveling wave antennas for the millimeter wave range face two main problems: increased metal loss, and fabrication difficulties due to the smaller wavelengths. To overcome these two problems, a new class of uniform leaky wave antennas have been introduced.
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Slit-coupled microstrip leaky-wave antenna

IEEE Antennas and Propagation Society International Symposium. Transmitting Waves of Progress to the Next Millennium. 2000 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.00CH37118), 2002
The possibility that the longitudinal slit coupling structure to the parasitic strip conductor may be used in the leaky wave antenna design of a microstrip type has been tested. The radiation pattern and matching characteristics of a fabricated antenna were measured, and a comparison between the theoretical and the experimental results was given.
null Jong Kyu Kim, null Jong Ig Lee, null Young Ki Cho   +2 more
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A Reconfigurable Leaky Wave Antenna

2023 33rd International Conference Radioelektronika (RADIOELEKTRONIKA), 2023
Jan Machac, Milan Svanda, Vaclav Kabourek   +2 more
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Double Structure Broadband Leaky Wave Antenna [PDF]

, 2011
A leaky wave antenna contains a first and a second leaky wave antenna structure back to back against each other. Each antenna structure comprises a dielectric body and an elongated wave carrying structure, such as a slot in a conductive ground plane.
Neto, A., Dijk, R. van, Filippo, M.
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Electrical tuning of phase-change antennas and metasurfaces

Nature Nanotechnology, 2021
Kye L Okabe, Umberto Celano, Junghyun Park   +2 more
exaly  

Time-Modulated Leaky-Wave Antennas

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI), 2022
Geng-Bo Wu, Jun Yan Dai, Chi Hou Chan
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Double-sheath helices: Leaky-wave antenna

IEEE Transactions on Antennas and Propagation, 1969
A leaky-wave antenna whose radiation pattern is uniform in circumference is made of double-sheath helices. The fundamental characteristics of this antenna are discussed theoretically and experimentally. A method which produces a tapered field along its aperture to effect reduced sidelobe level, and the relationship between the dielectric supporter for ...
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Leaky-wave antenna

The antenna has a layer arrangement (30) with three metallized layers (32, 34, 36) that are arranged parallel to each other and separated from each other by dielectric sheets (38, 40). Two of the layers comprise a two dimensions periodical metallization structure, and the third layer comprises a continuous metallization region. A stimulation structure (
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Broadband leaky wave antennas

An antenna comprises a conically shaped body of dielectric material. Cross-sections of the body have truncated elliptical shape, wherein each shape is truncated substantially through a first focus of the elliptical shape along a truncation line that extends substantially perpendicularly to a main axis of the elliptical shape.
Neto, A., Gerini, G., Bruni, S., Sabbadini, M.   +3 more
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Ultra‐Deformable and Tissue‐Adhesive Liquid Metal Antennas with High Wireless Powering Efficiency

Advanced Materials, 2021
Kento Yamagishi, Terry Ching, Shao Ying Huang   +2 more
exaly