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Complexation‐Mediated Diffusion‐Limited Crystal Growth: A General Framework for Anisotropic Crystal Growth in Cu‐Based Perovskites

Advanced Functional Materials, EarlyView.
A Complexation‐Mediated Diffusion‐Limited Growth (CMDLG) framework is established to rationalize the anisotropic growth of lead‐free perovskites. Integrating coordination chemistry with mass transport kinetics, this study theoretically derives and experimentally validates that stable iodocuprate complexes induce a diffusion‐limited regime.
Hyunmin Lee, Mu Geun Son, Thanh Van Vu, Hokyeong Jeong, Joonhee Kang, Youngjong Kang   +5 more
wiley   +1 more source

Robust architecture with central frequency adjustement and phase and voltage detection for self-contained power amplifiers with hybrid couplers at millimeter frequencies.

, 2020
Jérémie Forest
openalex   +1 more source

Ultra-Wideband RCS Reduction and Gain Enhancement of Aperture-Coupled Antenna Based on Hybrid-FSS

, 2017
Lili Cong, Xiangyu Cao, Tai‐Kyong Song
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Waveguide Hybrid Septum Coupler

IEEE Transactions on Microwave Theory and Techniques, 2021
The design of a patented broadwall waveguide hybrid coupler, derived from the working principle of a septum polarizer, is presented. This $E$ -plane coupler requires a single and large aperture in the common broadwall of the two parallel waveguide transmission lines to function, facilitating its manufacturing and assembly. The working principle of
Nelson J. G. Fonseca, Jean-Christophe Angevain   +1 more
openaire   +1 more source

Optical-waveguide hybrid coupler

Optics Letters, 1982
As a novel guided-wave passive device, the optical-waveguide hybrid coupler is proposed and its first known demonstration is reported. The proposed device consists of symmetric and nonsymmetric branching forks connected at a junction. An explanation of the working mechanism is presented.
M, Izutsu, A, Enokihara, T, Sueta
openaire   +2 more sources

VHF quadrature hybrid coupler

2015 23rd Telecommunications Forum Telfor (TELFOR), 2015
In this paper the practical design of a VHF quadrature hybrid coupler is presented. Knowing, before the production, the conditions that the coupler has to satisfy, has enabled us to acquire, through computer simulation, the dimensions of the coupler that was later produced. Values of the S-parameters of the simulated coupler are compared, to the values
Veljko Crnadak, Sinisa Tasic
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Coupled‐line 180° hybrid coupler

Microwave and Optical Technology Letters, 2005
AbstractA new 180° hybrid‐coupler structure based on coupled lines is proposed. It consists of two quarter‐wave coupled‐line sections and one half‐wave transmission‐line section. The coupled outputs are always in phase with the input signal for all ports, and the through or direct outputs are either in phase or out of phase from the input signal ...
Myun‐Joo Park, Byungje Lee
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Hybrid couplers in bilevel microstrip

IEEE Transactions on Microwave Theory and Techniques, 1993
Hybrid couplers can be built using a bilevel microstrip structure in which two strips are positioned broadside, one above the other. This simple geometry provides large coupling factors without the need for rigorous manufacturing tolerances. Remarkably, if the dielectric constant of one of the layers can be freely chosen, ideal hybrid coupler ...
M.D. Prouty, S.E. Schwarz
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Improved VHF quadrature hybrid coupler

2016 24th Telecommunications Forum (TELFOR), 2016
In this paper the practical design of the VHF quadrature hybrid coupler is presented. Knowing, before the production, what are the conditions that coupler has to satisfy, has enabled us to acquire, through computer simulation, the dimensions of the coupler that was later produced.
Veljko Crnadak, Sinisa Tasic
openaire   +1 more source

Ultrashort hybrid metal–insulator plasmonic directional coupler

Applied Optics, 2013
An ultrashort plasmonic directional coupler based on the hybrid metal-insulator slab waveguide is proposed and analyzed at the telecommunication wavelength of 1550 nm. It is first analyzed using the supermode theory based on mode analysis via the transfer matrix method in the interaction region.
Mahmoud Talafi, Noghani, Mohammad Hashem Vadjed, Samiei   +1 more
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