Results 21 to 30 of about 29,052 (301)

Entangling two oscillators with arbitrary asymmetric initial states [PDF]

open access: yes, 2016
A Hamiltonian is presented, which can be used to convert any asymmetric state $|\varphi \rangle_{a}|\phi \rangle_{b}$ of two oscillators $a$ and $b$ into an entangled state.
Han, Siyuan   +4 more
core   +2 more sources

A Novel Broadband Microwave Lumped-Element Quadrature Hybrid MMIC

open access: yesIEEE Access, 2022
In this paper, a novel broadband lumped-element quadrature hybrid MMIC for interferometric correlation radiometer is proposed. First, the cause of the bandwidth limitation in the lumped-element branch-line coupler is analyzed, which is the two identical ...
Xi Chen   +5 more
doaj   +1 more source

Broadband circularly polarized antennas for UHF SATCOM [PDF]

open access: yes, 2011
Novel circularly polarized (CP) antenna configurations derived from Moxon type antenna (bent dipole element over a ground plane) for broadband VHF SATCOM applications.
Manzhura, Oksana   +3 more
core   +1 more source

All-Fiber Wideband Supercontinuum Generation in Short Hybrid Highly Nonlinear Fibers With a Femtosecond Erbium-Doped Fiber Laser

open access: yesFrontiers in Physics, 2022
Wideband supercontinuum (SC) generation has attracted considerable attention due to its various practical applications in many fields. We report on all-fiber SC generation in hybrid highly nonlinear fibers (HNLFs) pumped with a femtosecond erbium-doped ...
Shuang Zhang   +5 more
doaj   +1 more source

Performance Study of Hybrid Magnetic Coupler Based on Magneto Thermal Coupled Analysis

open access: yesEnergies, 2017
Specific to a problem of large vibro-impact aris ing from the cutting unit of the hard rock tunnel boring machine (TBM), a hybrid magnetic coupler based on soft start was proposed in this paper.
Shuang Wang   +3 more
doaj   +1 more source

A Hybrid-Plasmonic-Waveguide-Based Polarization-Independent Directional Coupler

open access: yesIEEE Access, 2020
In optical interconnection field, inconsistent coupling behaviors of TE and TM modes may cause abnormal operation. Therefore, it is very significant to implement a polarization-independent directional coupler.
Li Zhang   +5 more
doaj   +1 more source

Non-volatile Optical Switch Based on a GST-Loaded Directional Coupler [PDF]

open access: yes, 2018
We present a non-volatile optical switch based on a directional coupler comprising a silicon-Ge2Sb2Te5 (GST) hybrid waveguide. The non-volatility of GST makes it attractive for reducing static power consumption in optical switching.
Chen, J.   +4 more
core   +1 more source

Composite GPS Patch Antenna for the AR Bandwidth Enhancement

open access: yesInternational Journal of Antennas and Propagation, 2016
A composite Global Positioning System (GPS) patch antenna with a quadrature 3 dB hybrid coupler was designed and implemented for working RHCP and had a broadband axial ratio (AR) bandwidth.
Minkil Park, Wonhee Lee, Taeho Son
doaj   +1 more source

Analysis and Design of Wideband 90° Microstrip Hybrid Coupler

open access: yesIEEE Access, 2019
A wideband 90° microstrip hybrid coupler with a bandwidth of 84.3% is proposed. The hybrid coupler consists of a two-section coupled-line power divider and a 90° phase shifter.
Ruying Sun   +3 more
doaj   +1 more source

An active wearable dual-band antenna for GPS and Iridium satellite phone deployed in a rescue worker garment [PDF]

open access: yes, 2013
An active wearable dual-band circularly polarized microstrip patch antenna for Global Positioning System and Iridium satellite phone applications is presented. It is constructed using flexible foam and fabric substrates, combined with copper-on-polyimide
Declercq, Frederick   +2 more
core   +1 more source

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