Isolator concept based on ferromagnetic nanowired substrates

Spiegel, Judith; Torre, J. de la; Piraux, Luc; Huynen, Isabelle

doi:10.1109/mwsym.2009.5165624

Cited by 10 publications

(4 citation statements)

References 7 publications

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“…Hemour et al [27] propose an SIW isolator based on ferrite, with lower performances reported in Table 2. The first demonstration of an isolator based on ferromagnetic nanowires (NW) was reported in [28]. Cobalt NW are included in nanoporous polycarbonate (PC) thin substrate, and 10 dB isolation is obtained, however with 15 dB insertion losses and requiring a 9 kOe DC magnetic bias.…”

Section: Nwsiw Isolatormentioning

confidence: 99%

Challenges and Perspectives for SIW Hybrid Structures Combining Nanowires and Porous Templates

Kerckhoven¹,

Piraux²,

Huynen³

2023

Hybrid Planar - 3D Waveguiding Technologies

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The chapter presents a review of properties and applications of a particular category of Substrate Integrated Waveguide (SIW) named NWSIW, for NanoWire-based Substrate Integrated Waveguide. The NWSIW topology combines metallic nanowires embedded in a porous template in order to form planar compact integrated waveguides; nanowires selectively grown in the template are used for building the walls of the waveguide, but also allow to achieve microwave functionalities such as filtering, isolation. Through the chapter the comparison made with classical waveguides including SIW will lead to a discussion on future perspectives and possible improvements of this NWSIW topology. Their performances will be explained and illustrated with regards to current state-of-the art, and based on results obtained at UCLouvain.

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Section: Nwsiw Isolatormentioning

confidence: 99%

Challenges and Perspectives for SIW Hybrid Structures Combining Nanowires and Porous Templates

Kerckhoven¹,

Piraux²,

Huynen³

2023

Hybrid Planar - 3D Waveguiding Technologies

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“…Ferromagnetic nanomaterials have been recently studied to large extent as promising candidates for frequency-agile microwave circuit applications such as phase shifters [1], filters [2], isolators [3] and circulators [4]. Magnetic materials have played an important role in addressing problems in electronics technology of the continued increase in the operational frequency in gigahertz range and degree of integration.…”

Section: Introductionmentioning

confidence: 99%

Tunable Coplanar Waveguide Microwave Devices on Ferromagnetic Nanowires

Sharma¹,

Kuanr²,

Sharma³

et al. 2014

IJMMM

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Abstract-Ferromagnetic nanowires (FMNW) in porous alumina template are excellent candidates for monolithic integrated microwave devices that can be tuned by material properties and also by externally applied magnetic field. We designed, fabricated and characterized coplanar waveguide (CPW) structures on FMNW substrates. Ni and Co nanowires are grown by electrodeposition method and their surface morphology is determined using scanning electron microscope. We observed that operational frequency of Ni nanowire based band stop filter increases linearly with applied magnetic field and has very wide frequency tunability. Complex microwave permeability is calculated from the observed transmission response.

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“…With the development of miniaturization and integration and extreme application environment of microstrip isolator [4,5], stress failure under temperature shock gets more and more attention. Now, many researches focused mainly on microstrip isolator electromagnetic properties [6][7][8][9] and new modes [5,[10][11][12][13] and magnetic application of ferrite [4,[14][15][16][17], but few papers reported the stress distribution of microstrip isolator and its influence on the device reliability under temperature shock. In this paper, the stress of microstrip isolator under 50 temperature shocks was simulated by ANSYS to obtain the stress distribution of the device, and the influence of every part in microstrip isolator on device reliability was analyzed according to stress distribution under temperature shock, material properties, and process features.…”

Section: Introductionmentioning

confidence: 99%

Thermal stress and reliability analysis of microstrip isolator under temperature shock

Rong

et al. 2013

2013 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering (QR2MSE)

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The stress of microstrip isolator under 50 temperature shocks was simulated using ANSYS. Simulation results showed that the maximum stress of microstrip isolator was in ferrite substrate after 50 temperature shocks, and the maximum stress of ferrite substrate increased from 38.3MPa to 60MPa with a growth of 56.7% and especially increased by 43.3% after first 5 temperature shocks, and the bottom surface of ferrite substrate was its maximal stress region. The importance of first 5 shocks in 50 temperature shocks was analyzed, and the influence of each part in microstrip isolator on device reliability was discussed according to stress distribution under 50 temperature shocks, material properties, and process features, and some measures were provided for improving microstrip isolator reliability under temperature shock.

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Isolator concept based on ferromagnetic nanowired substrates

Cited by 10 publications

References 7 publications

Challenges and Perspectives for SIW Hybrid Structures Combining Nanowires and Porous Templates

Challenges and Perspectives for SIW Hybrid Structures Combining Nanowires and Porous Templates

Tunable Coplanar Waveguide Microwave Devices on Ferromagnetic Nanowires

Thermal stress and reliability analysis of microstrip isolator under temperature shock

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