Results 51 to 60 of about 5,269,093 (368)
Conversion from linear to circular polarization in FPGA
, 2010 Context: Radio astronomical receivers are now expanding their frequency range to cover large (octave) fractional bandwidths for sensitivity and spectral flexibility, which makes the design of good analogue circular polarizers challenging.
Das, Koyel +3 more
core +1 more source
Simple design of efficient broadband multifunctional polarization converter for X-band applications
Scientific Reports, 2021 A simple design of a broadband multifunctional polarization converter using an anisotropic metasurface for X-band application is proposed. The proposed polarization converter consists of a periodic array of the two-corner-cut square patch resonators ...
Thi Kim Thu Nguyen +9 more
doaj +1 more source
Gamma-ray linear polarization distribution
Atomic Data and Nuclear Data Tables, 1987 The formalism for describing the linear polarization of gamma radiation from oriented nuclei is reviewed. Coefficients A'/sub lambda//sub 2/ are introduced which give the polarization-sensitive terms in the directional distribution of radiation the same form as the polarization-insensitive terms.
Rikovska, J, Stone, N
openaire +2 more sources
IEEE Open Journal of Antennas and Propagation, 2022 The dielectric resonator antenna (DRA) with wide bandwidth, compact size and low profile is considered as an attractive candidate for 5G wireless communications. However, most of the reported DRAs either have bulky volumes or have limited bandwidths.
Jie-Er Zhang +4 more
doaj +1 more source
Coherent optical control of polarization with a critical metasurface
, 2015 We describe the mechanism by which a metamaterial surface can act as an ideal phase-controlled rotatable linear polarizer. With equal-power linearly polarized beams incident on each side of the surface, varying the relative phase rotates the polarization
Chong, Y. D., Kang, Ming
core +1 more source
EPJ Applied MetamaterialsThis paper presents the design of a transmission-type dual-frequency polarization rotator for linearly polarized electromagnetic wave. The rotator facilitates polarization conversion for incident waves at any azimuth angle ϕ at two specific frequency ...
Chen Linhao +3 more
doaj +1 more source
Reconfigurable Antennas Based on Pure Water
IEEE Open Journal of Antennas and Propagation, 2021 This paper is concerned with the design of reconfigurable antennas based on pure water. Being a transparent, flexible, and readily available liquid, pure water can form a cylindrical stream that can be used to guide a leaky electromagnetic wave.
Changzhou Hua +6 more
doaj +1 more source
Full-Stokes polarimetry with circularly polarized feeds - Sources with stable linear and circular polarization in the GHz regime [PDF]
, 2017 We present a pipeline that allows recovering reliable information for all four Stokes parameters with high accuracy. Its novelty relies on the treatment of the instrumental effects already prior to the computation of the Stokes parameters contrary to ...
A. Kraus +37 more
core +2 more sources
Linear polarization in gamma-ray burst prompt emission [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Despite being hard to measure, GRB prompt γ-ray emission polarization is a valuable probe of the dominant emission mechanism and the GRB outflow’s composition and angular structure.
R. Gill, J. Granot, Pawan Kumar
semanticscholar +1 more source
Conceptual Design of a Semi-Dual Polarized Monopulse Antenna by Computer Simulation
Applied Sciences, 2023 Presented in this paper is a conceptual design by computer simulation of a monopulse reflector antenna with dual-circularly polarized sum patterns and linearly polarized azimuth and elevation difference patterns, which can be called a semi-dual polarized
Ayodeji Matthew Monebi +4 more
doaj +1 more source