Articles with "archimedean spiral" as a keyword



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Ultrawideband, high-gain, high-efficiency, circularly polarized Archimedean spiral antenna

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Published in 2019 at "AEU - International Journal of Electronics and Communications"

DOI: 10.1016/j.aeue.2019.07.006

Abstract: Abstract This paper presents an ultrawideband (UWB) circularly polarized (CP) two-arm Archimedean spiral antenna with unidirectional radiation patterns. The antenna is directly fed by a 50-Ω coaxial cable and reflected by a circular cavity. The… read more here.

Keywords: archimedean spiral; spiral antenna; circularly polarized; efficiency ... See more keywords
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Split Archimedean spiral metasurface for controllable GHz asymmetric transmission

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Published in 2019 at "Applied Physics Letters"

DOI: 10.1063/1.5084329

Abstract: A chiral metasurface, which obtains chirality through a subwavelength artificial structure, is essential for realizing asymmetric transmission in the application of enantioselective sensing, spin-dependent light emission, and other polarization control systems. Here, we studied a… read more here.

Keywords: archimedean spiral; transmission; spiral metasurface; asymmetric transmission ... See more keywords
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Compact Circularly Polarized Archimedean Spiral Antenna for Ultrawideband Communication Applications

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Published in 2017 at "IEEE Antennas and Wireless Propagation Letters"

DOI: 10.1109/lawp.2016.2560258

Abstract: A novel compact circularly polarized Archimedean spiral antenna for ultrawideband (UWB) communication applications is presented. The basic structure is a two-arm planar Archimedean spiral antenna, which is fed by a tapered wideband balun. These two… read more here.

Keywords: archimedean spiral; spiral antenna; compact circularly; communication applications ... See more keywords
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Cavity-Backed Archimedean Spiral Antenna with Conical Perturbations for 3U CubeSat Applications [Education Corner]

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Published in 2018 at "IEEE Antennas and Propagation Magazine"

DOI: 10.1109/map.2018.2870586

Abstract: This article reports the development of a CubeSat antenna for the 2017 IEEE Antennas and Propagation Society (AP-S) Student Design Contest by an interdisciplinary team of undergraduate and graduate students from the Electrical and Aerospace… read more here.

Keywords: archimedean spiral; backed archimedean; cavity backed; conical perturbations ... See more keywords
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High-resolution optical orbital angular momentum sorter based on Archimedean spiral mapping.

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Published in 2022 at "Optics express"

DOI: 10.1364/oe.455987

Abstract: We propose a generalized spiral transformation scheme that is versatile to incorporate various types of spirals such as the Archimedean spiral and the Fermat spiral. Taking advantage of the equidistant feature, we choose the Archimedean… read more here.

Keywords: optical orbital; spiral mapping; high resolution; resolution optical ... See more keywords