Results 11 to 20 of about 30,437 (345)
Xi'an Gongcheng Daxue xuebao, 2021 In order to solve the problem of insufficient carrier space caused by the antenna loaded inside the conical seeker, the conformal four arm conical spiral antenna which applied to the main frequency of 1.575 GHz satellite positioning communication system ...
Wei SHEN +5 more
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A New Observation in Spiral and Curl Antenna Configurations above the Ground Plane
Applied Sciences, 2022 We report here that spiral and curl antennas are essentially the same when using the moment method. This aids in the understanding and design of the two antennas, and serves as the groundwork for new ideas regarding antennas.
Kazuhide Hirose +2 more
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Mechanics Design of Conical Spiral Structure for Flexible Coilable Antenna Array
International Journal of Aerospace Engineering, 2022 Limited by the effective launch capacity of a rocket, the deployable antenna is very important in the design of spaceborne antenna array. Compared to traditional deployable antenna, flexible coilable antenna array has higher surface precision and better ...
Hairui Wang +6 more
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An Archimedean Spiral Antenna for Generation of Tunable Angular Momentum Wave
IEEE Access, 2021 In this paper, an Archimedean spiral antenna has been developed to flexibly radiate orbital angular momentum (OAM) wave with tunable modes. The operation mechanism for generation of the OAM wave is elaborated in terms of phases of the currents flowing on
Yan Shi, Quan Wei Wu, Jie Ming
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A low‐profile wideband spiral antenna with multiple stopbands
IET Microwaves, Antennas & Propagation, 2023 A low‐profile spiral antenna with three stopbands (2.55 GHz band, 3.85 GHz band, and 5.45 GHz band) is developed. The stopbands are generated using three pairs of slots cut into the spiral arms.
Masahiro Tanabe, Hisamatsu Nakano
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Design of Small-Sized Spiral Slot PIFA Antenna Used Conformally in Laminated Body Tissues. [PDF]
Sensors (Basel)Li R +5 more
europepmc +3 more sources
Radiation pattern reconfigurable fm antenna [PDF]
, 2019 In this work, a radiation pattern reconfigurable antenna design using compact printed spiral monopoles that operates at 102 MHz is reported. The proposed antenna changes its radiation behaviour that responds towards a desired direction with the use of ...
Balanis C.A. +16 more
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Acoustic excitation on flame properties caused by two sound sources [PDF]
, 2020 Research and development in understanding the responses of acoustic excitation as a meant to influence flame behavior have become one of the significant issues in combustion instability.
Samsubaha, Muhammad Fauzi
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Nanoscale Research Letters, 2018 Antenna-coupled micro-bridge structure is proven to be a good solution to extend infrared micro-bolometer technology for THz application. Spiral-type antennas are proposed in 25 μm × 25 μm micro-bridge structure with a single separate linear antenna, two
Jun Gou +4 more
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3-D-Printed Spiral Leaky Wave Antenna With Circular Polarization
IEEE Open Journal of Antennas and Propagation, 2023 This article presents the design, manufacturing and measurement of a fully dielectric leaky wave antenna operating at 18 GHz. The antenna is composed of a grounded dielectric substrate with a top dielectric Archimedean spiral corrugation, which allows ...
Tomas Lira-Valdes +2 more
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