Extremely compact microstrip branch‐line coupler with a novel fold structure
Sign Up to like & getrecommendations! Published in 2017 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.30901
Abstract: An extremely compact 900-MHz microstrip branch-line coupler with a novel fold structure was proposed. A novel profile of the fold structure prevented the overlapping of stub lines to minimize the branch-line coupler dimensions. The measured… read more here.
Keywords: fold structure; branch line; coupler; line coupler ... See more keywords
Miniaturized quadrature hybrid couplers based on novel U‐shaped transmission lines
Sign Up to like & getrecommendations! Published in 2018 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.31555
Abstract: In this paper, a miniaturized microstrip quadrature hybrid coupler (QHC) using U-shaped transmission lines (USTLs) is presented. The proposed approach replaces all arms of the conventional QHC with its equivalent USTL to achieve compactness. The… read more here.
Keywords: shaped transmission; transmission lines; coupler; quadrature hybrid ... See more keywords
A compact coupler design using meandered line compact microstrip resonant cell (MLCMRC) and bended lines
Sign Up to like & getrecommendations! Published in 2021 at "Wireless Networks"
DOI: 10.1007/s11276-020-02484-z
Abstract: In this paper, a novel branch-line coupler using meandered line compact microstrip resonant cell (MLCMRC) and bended lines is proposed. The presented coupler works at 0.9 GHz, with good specifications. The measured values of S 12… read more here.
Keywords: compact microstrip; line; using meandered; coupler ... See more keywords
[Use of coupler for venous anastomoses in cervico-facial reconstruction. Retrospective study on 51 free flaps].
Sign Up to like & getrecommendations! Published in 2019 at "Annales de chirurgie plastique et esthetique"
DOI: 10.1016/j.anplas.2019.06.011
Abstract: OBJECTIVE The aim of our study was to evaluate the interest of the mechanical anastomosic coupling device for venous anastomoses in a series of cervico-facial reconstructions after carcinologic excision. PATIENTS AND METHODS Between January 2010… read more here.
Keywords: free flaps; coupler; venous anastomoses; study ... See more keywords
An adaptive coupler for calibration of arbitrarily shaped microphones
Sign Up to like & getrecommendations! Published in 2019 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2019.04.024
Abstract: Abstract Accurate measurements of sound pressure level require regular calibration of the microphone, and closed-coupler calibration devices are commonly used. Standard acoustical couplers are designed to be used with working standard microphones, and the dimensions… read more here.
Keywords: adaptive coupler; calibration arbitrarily; arbitrarily shaped; coupler ... See more keywords
Dynamics and nonlinear modes of nonlinear saturable PT-symmetric coupler
Sign Up to like & getrecommendations! Published in 2020 at "Optik"
DOI: 10.1016/j.ijleo.2020.165158
Abstract: Abstract The existence and stability of nonlinear stationary states in nonlinear saturable coupler with balanced gain–loss (the parity-time symmetric distribution) are studied. Propagation and switching of beams at the different initial excitations are investigated. read more here.
Keywords: dynamics nonlinear; coupler; saturable symmetric; nonlinear saturable ... See more keywords
Evaluation of load transfer mechanism under axial loads in a novel coupler of dual height rock bolts
Sign Up to like & getrecommendations! Published in 2021 at "International journal of mining science and technology"
DOI: 10.1016/j.ijmst.2020.12.023
Abstract: Abstract The effective reinforcement of two or more overlying layers of mine openings in a single installation is usually done by coupling of two standard rock bolts mainly during the extraction of medium-thick coal seams.… read more here.
Keywords: rock bolts; load transfer; rock; coupler ... See more keywords
Spatial solitons in a nonlocal fused coupler
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2018.05.066
Abstract: Abstract We study soliton-modes of optical pulses and their stabilities in a nonlocal nonlinear fused dual-core planar waveguide. Taking the different parameters, we find the symmetric, antisymmetric and asymmetric bright soliton pairs and dipole soliton… read more here.
Keywords: spatial solitons; nonlocal fused; coupler; fused coupler ... See more keywords
Coupling performance enhancement using SOI grating coupler design
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2018.06.012
Abstract: Abstract Grating couplers are one of the most significant elements for the coupling of light between optical fibers and photonic integrated circuits. In this paper, we present the design, fabrication and experimental characterization of Silicon… read more here.
Keywords: performance enhancement; grating coupler; coupler; coupling performance ... See more keywords
Heterogeneous integration of LN and Si3N4 waveguides using an optical interlayer coupler
Sign Up to like & getrecommendations! Published in 2019 at "Optics Communications"
DOI: 10.1016/j.optcom.2018.11.058
Abstract: Abstract Integrated optical gyros (IOG) draw attention due to the remarkable promise of miniaturization, mass-manufacturability and high reliability. However, the wafer-scale integration of these devices is not available. A heterogeneous platform of lithium niobate (LN)… read more here.
Keywords: interlayer; si3n4; coupler; optical interlayer ... See more keywords
Switching behavior engineerable, electro-optic directional couplers in aperiodic optical superlattice waveguides
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.124800
Abstract: Abstract We report on the first study and a proof-of-principle demonstration of aperiodically alternating- Δ β couplers in LiNbO 3 waveguides whose switching behavior can be engineered with a high degree of freedom. A high… read more here.
Keywords: behavior engineerable; switching behavior; electro optic; coupler ... See more keywords