Articles with "non foster" as a keyword



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Design and analysis of a broadband and miniaturized linear polarized converter based on non‐Foster metasurfaces

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Published in 2020 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32591

Abstract: A broadband highly efficient and miniaturized polarizing converter, employing non‐Foster metasurface composed of a single layer cut‐wire resonator is presented in microwave regime. Non‐Foster component are loaded to traditional dipole‐type linear polarized converter to further… read more here.

Keywords: polarized converter; converter; non foster; broadband ... See more keywords
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Perceived Impact of the COVID-19 Lockdown on the Family Context of Foster and Non-Foster Families

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Published in 2021 at "Journal of Child and Family Studies"

DOI: 10.1007/s10826-021-02185-x

Abstract: The COVID-19 pandemic and the resulting lockdown have had a far-reaching impact across all levels of society. In Spain, severe restrictions were placed on people’s mobility, and leaving the home was only possible under special… read more here.

Keywords: non foster; lockdown family; family context; family ... See more keywords
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Broadband and thin magnetic absorber with non-Foster metasurface for admittance matching

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Published in 2017 at "Scientific Reports"

DOI: 10.1038/s41598-017-07323-4

Abstract: One of the long-standing and challenging problems in microwave engineering is the realization of ultra-wideband absorption using extremely-thin structures. Magnetic material can facilitate thickness reduction for microwave absorbers but also bring inherent narrowband admittance matching… read more here.

Keywords: admittance matching; admittance; thin magnetic; absorber ... See more keywords
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A Novel Fully Reconfigurable Non Foster Capacitance Using Distributed Negative Group Delay Networks

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2927259

Abstract: A novel reconfigurable non-Foster capacitance (NFC) using negative group delay (NGD) circuit is presented in this paper. The NGD circuit is based on a multi-order distributed amplifier which is used to achieve both NGD performance… read more here.

Keywords: foster capacitance; group delay; reconfigurable non; negative group ... See more keywords
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A 44–64-GHz mmWave Broadband Linear Doherty PA in Silicon With Quadrature Hybrid Combiner and Non-Foster Impedance Tuner

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Published in 2022 at "IEEE Journal of Solid-State Circuits"

DOI: 10.1109/jssc.2022.3171570

Abstract: The proliferation of millimeter-wave (mmWave) bands across 24–90 GHz and the strict spectral efficiency requirements demand future transmitter front ends to operate across multiple bands with simultaneously back-off efficiency and high linearity—characteristics that typically trade… read more here.

Keywords: quadrature hybrid; doherty; non foster; efficiency ... See more keywords
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Electrically Small, Broadside Radiating Huygens Source Antenna Augmented With Internal Non-Foster Elements to Increase Its Bandwidth

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Published in 2017 at "IEEE Antennas and Wireless Propagation Letters"

DOI: 10.1109/lawp.2016.2600525

Abstract: A broadside radiating, linearly polarized, electrically small Huygens source antenna system that has a large impedance bandwidth is reported. The bandwidth performance is facilitated by embedding non-Foster components into the near-field resonant parasitic elements of… read more here.

Keywords: broadside radiating; electrically small; source antenna; huygens source ... See more keywords
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Toward Self-Oscillating Non-Foster Unit Cell for Future Active Metasurfaces

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Published in 2020 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2019.2951529

Abstract: The concept of a self-oscillating non-Foster unit cell, intended for use in future active metasurfaces, is introduced. It is based on two orthogonally polarized small antennas connected via a negative impedance converter (NIC). An NIC… read more here.

Keywords: self oscillating; oscillating non; non foster; unit cell ... See more keywords
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Stability and Bifurcation Analysis of Multi-Element Non-Foster Networks

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Published in 2018 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2018.2793893

Abstract: A stability and bifurcation analysis of multi-element non-Foster networks is presented, illustrated through its application to non-Foster transmission lines. These are obtained by periodically loading a passive transmission line with negative capacitors, implemented with negative-impedance… read more here.

Keywords: analysis; multi element; stability; bifurcation ... See more keywords
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Mental Health Diagnoses of Children in Foster Care: A Comparison Study between Foster and Non-Foster Children Covered by Medicaid

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Published in 2020 at "Pediatrics"

DOI: 10.1542/peds.146.1_meetingabstract.508-a

Abstract: Purpose The purpose of this study was to examine and analyze Medicaid utilization data from a comprehensive sample of foster and non-foster Medicaid patients in a large metropolitan area to determine rates of diagnoses of… read more here.

Keywords: foster; children foster; mental health; foster non ... See more keywords