WebAug 18, 2024 · Magnesium phosphate cement-based reactive powder concrete (MPC-RPC) is a cement-based material with early strength, high strength and excellent durability. The slump flow and setting time of steel fibers reinforced MPC-RPC are investigated. Meanwhile, the flexural strength, the compressive strength, the ultrasonic velocity and the electrical … WebSep 3, 2004 · Using the exact image formulation for the fields of elementary sources above impedance surfaces, it is shown that a purely reactive impedance plane with a specific surface reactance can minimize the interaction between the elementary source and its image in the RIS substrate.
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WebA reactive impedance surface for enhancing antenna isolation on cylindrical platforms Abstract: An investigation into a design of a reactive impedance surface that can be used for wide bandwidth enhancement of isolation between transmit and receive antennas mounted on a cylindrical radio-frequency (RF) repeater is discussed in this work. WebRIS (Reactive Impedance Surface) I am just beginning to study RIS (reactive impedance surfaces) for my antenna structure miniaturization. I would like to know as to what should … dying light 2 steam key cdkeys
A reactive impedance surface for enhancing antenna isolation on ...
WebJan 9, 2024 · The proposed absorber utilizes a reactive impedance surface (RIS) to boost field enhancement without an ultrathin spacer and maintains near-perfect absorption by … WebAbstract: In this paper, an aperture efficient wideband high-gain patch antenna is designed using a novel multilayer-based metamaterial structure combined with a reactive impedance surface (RIS)-backed patch antenna. The metamaterial unit cell is a two-layer structure which is stacked one after other to form the overall unit cell. The microscopic behavior of … WebFeb 1, 2024 · It is necessary to systematically study the relationship between the aspect ratio and the mechanical properties of RPC and the force-electricity response. In this paper, the flexural strength, the compressive strength and the flexural toughness and AC electrical resistance and AC impedance spectroscopy of reactive powder concrete are investigated. dying light 2 steam unlocked