Results 271 to 280 of about 1,620,298 (334)
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Circular polarization detector based on polarization holography
Optics Letters, 2022We propose and experimentally demonstrate the generation of a circular polarization detector based on planar polarization holography. The detector is designed by constructing the interference field according to the null reconstruction effect. We create multiplexed holograms, which feature the combination of two sets of hologram patterns and operate ...
Yuanying Zhang +8 more
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Applied Optics, 1983
A fiber circular polarizer, composed of a metal-coated fiber polarizer and a lambda/4 platelet fabricated on a birefringent fiber, has been demonstrated. The lambda/4 platelet was made by cutting a birefringent fiber to an appropriate length. The device structure was designed by stress analysis simulation using a finite element method to set the angle ...
T, Hosaka, K, Okamoto, T, Edahiro
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A fiber circular polarizer, composed of a metal-coated fiber polarizer and a lambda/4 platelet fabricated on a birefringent fiber, has been demonstrated. The lambda/4 platelet was made by cutting a birefringent fiber to an appropriate length. The device structure was designed by stress analysis simulation using a finite element method to set the angle ...
T, Hosaka, K, Okamoto, T, Edahiro
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Design of 880MHz Dual Circular Polarization and 2.4GHz Circular Polarization Integrated Antenna
2021 9th International Conference on Communications and Broadband Networking, 2021In this paper, a dual circularly polarized IFA antenna array and a circularly polarized microstrip antenna are introduced. The IFA array is composed of four designed Inverted-F shape antennas. The response frequency range of the IFA array is 840MHz-925MHz, which can be applied to RFID applications in UHF band.
Kongzheng Li +3 more
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Understanding and measuring circular polarization
IEEE Transactions on Education, 2003Many modern satellite and terrestrial point-to-point communications systems use circular polarization (CP) wave propagation in order to maximize the polarization efficiency component of the link budget. Therefore, in an undergraduate electromagnetics syllabus, an introduction to the topic of circular polarization is necessary to promote an ...
Bee-Yen Toh +2 more
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Circular polarization memory of light
Physical Review E, 2005Circular polarization memory of light multiply scattered by Mie particles is investigated. The mechanism of randomization of helicity is found, in general, to dominate light circular depolarization by particles of large size or a high refractive index while the mechanism of randomization of direction dominates for small particles of a lower refractive ...
Min, Xu, R R, Alfano
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IEEE transactions on microwave theory and techniques, 2020
In this article, a compact dual-band linear-to-circular polarization converter designed on a single-layer substrate is proposed. The unit cell of the converter has a size of $3.72\times 3.90\times 1.52\,\,\text {mm}^{3}$ ( $0.0072\lambda ^{3}_{o} $ , $
Mohammad Ayoub Sofi, K. Saurav, S. Koul
semanticscholar +1 more source
In this article, a compact dual-band linear-to-circular polarization converter designed on a single-layer substrate is proposed. The unit cell of the converter has a size of $3.72\times 3.90\times 1.52\,\,\text {mm}^{3}$ ( $0.0072\lambda ^{3}_{o} $ , $
Mohammad Ayoub Sofi, K. Saurav, S. Koul
semanticscholar +1 more source
IEEE Transactions on Antennas and Propagation, 2019
A dual-band linear-to-circular polarization converter (LCPC) based on a single-layer dielectric substrate is proposed. The element of the converter consists of two identical metallic layers with a combination of a connected Jerusalem cross (JC) and an “I”
H. Wang, Y. Cheng
semanticscholar +1 more source
A dual-band linear-to-circular polarization converter (LCPC) based on a single-layer dielectric substrate is proposed. The element of the converter consists of two identical metallic layers with a combination of a connected Jerusalem cross (JC) and an “I”
H. Wang, Y. Cheng
semanticscholar +1 more source
Y-shaped graphene-based antenna with switchable circular polarization
, 2020In this paper, an antenna with the ability to provide the right- and left-hand circular polarization in the THz band is presented. The central frequency of the antenna is set at 0.45 THz according to the proposal requirements.
Mohsen Jafari Chashmi +2 more
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A Millimeter-Wave Triple-Band SIW Antenna With Dual-Sense Circular Polarization
IEEE Transactions on Antennas and Propagation, 2020A millimeter-wave (mmWave) triple-band substrate integrated waveguide (SIW) antenna with dual-sense circular polarization (CP) etched on a single substrate is proposed.
Huakang Chen +4 more
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A polarization selective surface for circular polarization
1988 IEEE AP-S. International Symposium, Antennas and Propagation, 2003The authors develop surfaces which will transmit a circularly polarized incident wave of one circularity and reflect a wave of opposite circular polarization. Preliminary results for typical circular polarization selective surfaces are given. These results clearly provide the proof of this principle.
W.V. Tilston, T. Tralman, S.M. Khanna
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