An Antenna Proximity Sensor for Mobile Terminals Using Reflection Coefficient [PDF]
Sensors, 2018 This paper presents a new antenna proximity sensor for mobile terminals based on the measured reflection coefficient using a bidirectional coupler which is positioned between the main antenna and the front-end module.
Wonsub Lim, Dongil Yang, Youngoo Yang
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Interface coupling properties and reflection of bulk spin waves from biaxial multilayer ferromagnetic media [PDF]
, 2008 The reflection coefficient of bulk spin waves from multilayer ferromagnetic structure with periodically modulated parameters of exchange interaction, uniaxial and rhombic magnetic anisotropy and saturation magnetization is calculated with a non-ideal ...
Homenko, Tat'yana A +1 more
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Artery Research, 2020 Introduction The concept of re-reflections of blood pressure waves at the heart has been neglected in most models and is only poorly understood so far.
Bernhard Hametner +2 more
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Microwave Radar Sensing of Sea Waves: An Effective Reflection Coefficient
Russian Journal of Earth Sciences, 2023 At the small incidence angles, the dominant backscattering mechanism for sea waves is the quasi-specular backscattering mechanism. The power of the reflected signal depends on the distribution function of the slopes of large-scale waves (in comparison ...
Karaev Vladimir +6 more
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Imaginary Potential as a Counter of Delay Time for Wave Reflection from a 1D Random Potential [PDF]
, 1999 We show that the delay time distribution for wave reflection from a one-dimensional random potential is related directly to that of the reflection coefficient, derived with an arbitrarily small but uniform imaginary part added to the random potential ...
A. Comtet +23 more
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Generalized Reflection Coefficients [PDF]
Communications in Mathematical Physics, 2015 I consider general reflection coefficients for arbitrary one-dimensional whole line differential or difference operators of order $2$. These reflection coefficients are semicontinuous functions of the operator: their absolute value can only go down when limits are taken.
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Theoretical and Experimental Studies of Acoustic Reflection of Bubbly Liquid in Multilayer Media
Applied Sciences, 2022 Bubbly liquids are widely present in the natural environment and industrial fields, such as seawater near the ocean bottom, the multiphase flow in petroleum reservoirs, and the blood with bubbles resulting in decompression sickness.
Yu Wang +3 more
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The phase shift of an ultrasonic pulse at an oil layer and determination of film thickness [PDF]
, 2005 An ultrasonic pulse incident on a lubricating oil film in a machine element will be partially reflected and partially transmitted. The proportion of the wave amplitude reflected, termed the reflection coefficient, depends on the film thickness and the ...
Astridge D. G. +4 more
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Наукові вісті Національного технічного університету України "Київський політехнічний інститут", 2017 Background. This work is devoted to theoretical study of the behavior of spin waves passing through multilayer ferromagnetic with complex interfaces. Objective.
Serhii O. Reshetniak +1 more
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Measurements of Antenna Surface for a Millimeter-Wave Space Radio Telescope II; Metal Mesh Surface for Large Deployable Reflector [PDF]
, 2012 Large deployable antennas with a mesh surface woven by fine metal wires are an important technology for communications satellites and space radio telescopes.
Kamegai, Kazuhisa, Tsuboi, Masato
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