Results 281 to 290 of about 1,620,298 (334)
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Semiconductor Science and Technology, 2019
A technique is implemented for obtaining the circular polarization in a nano-dielectric resonator (DR) antenna. A cylindrical DR has been excited by a nanostrip feedline.
G. Varshney +4 more
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A technique is implemented for obtaining the circular polarization in a nano-dielectric resonator (DR) antenna. A cylindrical DR has been excited by a nanostrip feedline.
G. Varshney +4 more
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Circular polarization in transparent circular patch with defected structure
2016 International Conference on Advances in Computing, Communications and Informatics (ICACCI), 2016This paper presents an optically transparent circular shaped microstrip patch antenna. The transparent circular microstrip antenna comprises a thin sheet of soda lime glass substrate with conductive ITO film coating for radiating patch and ground plane and is feed through a CPW feeding technique. The circular shaped patch is modified by inserting inset
Jayashree P. Shinde +2 more
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Reflectarray Antennas for Independent Dual Linear and Circular Polarization Control
IEEE Transactions on Antennas and Propagation, 2019This paper presents a dual-polarization reflectarray unit cell for wideband applications based on stacked Jerusalem crosses with a quarter-wavelength cell period.
Ciaran Geaney, M. Hosseini, S. Hum
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CPW-fed ultra-wideband slot antenna with broadband dual circular polarization
AEU - International Journal of Electronics and Communications, 2019A novel coplanar waveguide (CPW) fed ultra-wideband slot antenna with broadband dual circular polarization is proposed, fabricated and measured. The antenna structure is simple and consists of two CPW-fed ports to achieve both right-hand circular ...
Zhenya Li, Xiaosong Zhu, Cheng-you Yin
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Circular Polarization of Internal Bremsstrahlung
Physical Review, 1957A calculation is made of the circular polarization of the internal bramsstrahlung in allowed $\ensuremath{\beta}$-decay with the most general $\ensuremath{\beta}$-interaction. The polarization is found to rise from zero at the low-energy end of the spectrum to a maximum value at the high-energy end. This maximum value depends critically on the relative
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Wideband Water Helical Antenna of Circular Polarization
IEEE Transactions on Antennas and Propagation, 2019This paper describes a novel helical antenna made of pure water. The water helical antenna is realized by replacing the metallic arm of a conventional helical antenna with a plastic tube of circular cross section filled with pure water.
Z. Ren +4 more
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Ultra-wideband linear-to-circular polarization converter with ellipse-shaped metasurfaces
Optics Communications, 2019Generally, a traditional method to generate circularly polarized waves faces limitations like the narrow band, bulky volume and low efficiency. In this paper, a linear-to-circular (LTC) polarization converter based on metasurface with high efficiency and
Y. Ran +5 more
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TEM Modes and Circular Polarization
American Journal of Physics, 1963In this treatment of transverse electromagnetic waves circularly polarized waves of opposite senses are associated with a given positive frequency and the corresponding negative frequency. Linear polarization is thus obtained only as a superposition of circularly polarized waves.
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Journal of Physics D: Applied Physics, 2019
In this paper, a metasurface-based multi-band polarization converter is designed and demonstrated. The designed metasurface not only converts horizontal polarization into vertical and vice versa, but also exhibits linear-to-circular and circular-to ...
M. I. Khan +4 more
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In this paper, a metasurface-based multi-band polarization converter is designed and demonstrated. The designed metasurface not only converts horizontal polarization into vertical and vice versa, but also exhibits linear-to-circular and circular-to ...
M. I. Khan +4 more
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Circular-polarization modulator
Nature Photonics, 2017Switching the handedness of circularly polarized light requires separately controlling the phases of orthogonal components while maintaining their magnitudes, ideally with gigahertz operation rates. Ultrafast switching has now been realized via all-optical control of birefringent metamaterials.
Qiushi Liu, Ming Liu
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