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A Circularly Polarized Horn Antenna Based on an FSS Polarization Converter
IEEE Antennas and Wireless Propagation Letters, 2020This letter designed a circularly polarized horn antenna by loading a frequency selective surface (FSS) polarization converter at the aperture of a standard horn. The proposed polarization converter is based on multilayer nonresonant FSS. It is composed of a two-layer dielectric slab and three printed metal layers, which are etched on the top, middle ...
Chunfeng Yang +5 more
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A 540-MHz 10-b polar-to-Cartesian converter
IEEE Journal of Solid-State Circuits, 1991A 10-b polar-to-Cartesian converter for generating digital sine and cosine waveforms simultaneously with a maximum sample rate of 540 MHz is presented. The converter is derived from a coordinate rotation digital computer (CORDIC) processor. Implementation details and the chip layout are given.
Gerard C. M. Gielis +2 more
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Whispering gallery mode microresonators as polarization converters
Optics Letters, 2007A ring resonator coupled to a waveguide can be used as a highly efficient polarization converter when the input is properly polarized. We model this phenomenon and verify the predictions with a demonstration of very efficient polarization conversion (>90%) on a silica microsphere coupled to a tapered optical fiber.
Pablo, Bianucci +4 more
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Active Polarization Converter in AlGaAs
Nonlinear Guided Waves and Their Applications, 1998Asymmetric AlGaAs waveguides working in a cross-phase modulation regime and operated at photon energies below the band gap could be promising for the design of active TE-TM polarization converters. Crucially important for devices with asymmetrical cross-section is the orientation of the optical axes to maximize the TE-TM conversion.
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Analysis of polarization conversion in AlGaAs/GaAs electrooptic polarization converter
Optics Communications, 2006A numerical simulation study of the polarization conversion phenomenon in deeply etched semiconductor electrooptic polarization converter is presented. Based on a powerful and versatile finite element method, the effects of various parameters on the polarization conversion in electrooptic semiconductor polarization converter are reported.
S. Haxha, F. AbdelMalek, B.M.A. Rahman
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Mechanically Reconfigurable Polarization Converter for Terahertz Waves
IEEE Transactions on Terahertz Science and TechnologyIn terahertz systems, polarization conversion is usually carried out using conventional waveplates. However, limitations in these waveplates arise from inadequate material accessibility, relatively narrow bandwidth, low efficiency, and bulkiness. To overcome these limitations, a transmissive terahertz metasurface with mechanically reconfigurable ...
Sakib Quader +4 more
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POLARIZATION SWITCHING ANALOG TO DIGITAL CONVERTER
Integrated Ferroelectrics, 2006ABSTRACT This paper describes a new ferroelectric based circuit that is used to perform analog to digital conversion function. The successive approximation analog to digital conversion utilizes polarization switching properties of ferroelectric capacitors as a novel analog to digital conversion medium.
T. S. KALKUR, MIKE D'AMICO, GREG PAULS
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A metamaterial polarization converter with half reflection and half transmission simultaneously
Physics Letters, Section A: General, Atomic and Solid State Physics, 2021Yujie Liu, Helin Yang, Xiaojun Huang
exaly
Design of a flexible linear polarization converter
Physica ScriptaAbstract Polarisation converters frequently encounter limitations, such as restricted flexibility and instability under oblique incidence, which impede their application in radar cross-section (RCS) reduction on conformal surfaces. To overcome issues of narrow bandwidth and a diminished polarisation conversion ratio (PCR) at large ...
Baojun Chen +4 more
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