A novel ultra-wideband waveguide-to-microstrip transition for millimeter-wave applications

Xu, W.; Liu, Fei; Xu, Handong

doi:10.1063/1.4964492

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…Recently, many researchers explored variant perovskites as potential candidates in the fields of spintronic, optoelectronics and thermoelectric power generation 1–13 . These compounds are commonly symbolized by X 2 YZ 6 , where, X, Y are generally cations, and Z is a halide 14 .…”

Section: Introductionmentioning

confidence: 99%

Structural, electronic, magnetic and thermoelectric properties of Tl₂NbX₆ (X = Cl, Br) variant perovskites calculated via density functional theory

Ali,

Bahajjaj,

Al‐Qaisi

et al. 2023

J Comput Chem

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This article presents detailed structural, electronic, magnetic, and thermoelectric properties of two experimentally existing isostructural variant perovskite compounds Tl2NbX6 (X = Cl, Br) with the help of first principles calculations. As per requirement of stability in the device applications, the structural and thermodynamic stabilities were, respectively verified by tolerance factor and negative formation energies. The structural parameters in ferromagnetic phase were calculated and found in close agreement with the available experimental results. The electronic nature was found as half metallic from spin polarized calculations of electronic band structures and density of states, where the semiconductor nature was found in the spin down states and metallic nature in the spin up states. The magnetic moments of both the compounds were calculated as 1 μB majorly contributed by Nb atom. The Boltzmann transport theory was implemented via BoltzTraP for calculating the spin resolved thermoelectric parameters, such as Seebeck coefficient, electronic and thermal conductivities, and figure of merit. Overall, both the compounds were found suitable for use in spintronics and spin Seebeck effect for energy applications.

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Section: Introductionmentioning

confidence: 99%

Structural, electronic, magnetic and thermoelectric properties of Tl₂NbX₆ (X = Cl, Br) variant perovskites calculated via density functional theory

Ali,

Bahajjaj,

Al‐Qaisi

et al. 2023

J Comput Chem

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“…It is necessary to couple the microwaves from the waveguide into the microstrip line. A novel waveguide-to-microstrip transition [10] was developed based on probe coupling. In this paper, according to the design process, the detector diode, low-pass filter, and matching circuit are discussed in turn, and then the designed detector is simulated and analyzed.…”

Section: Introductionmentioning

confidence: 99%

Millimeter-wave detector for gyrotron power monitoring

Liu

et al. 2020

AIP Conference Proceedings

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The real-time power monitoring of gyrotron is one of the key issues in the operation of electron cyclotron resonance heating system. The detector can be used for real-time power monitoring. We analyzed the principle of diode detection and designed a D-band wideband detector based on Schottky diode in this paper. The detector includes a waveguide-to-microstrip transition, a matching circuit, a diode, and a low pass filter. A novel waveguide-to-microstrip transition was developed based on probe coupling. A wideband lossy matching circuit was developed based on tapered-line and series matching resistor. The simulation results show that when the input power is -30dBm at 140 GHz, the detection sensitivity is about 1600V/W.

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“…The Experimental Advanced Superconducting Tokamak (EAST), an all-superconducting non-circular cross-section tokamak nuclear fusion experimental device built by the Institute of Plasma Physics, Chinese Academy of Sciences, is the world's first fully superconducting non-circular cross-section Tokamak nuclear fusion experiment device successfully operated [1] . To achieve fusion ignition, the plasma needs to be heated to a sufficient temperature, and ohmic heating is the main heating method [2] .…”

Section: Introductionmentioning

confidence: 99%

Design of real-time power control system for gyrotron

Yin

Xu²,

Xu³

et al. 2022

6th International Workshop on Advanced Algorithms and Control Engineering (IWAACE 2022)

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For the purpose of meeting the further requirements of East operation experiment for gyrotron power, a set of gyrotron power real-time control system is designed. Through mode switching, the system can realize two real-time control modes of gyrotron power: ECRH local control and EAST center console remote control. The system uses NI CompactRIO and its components as the lower computer hardware platform and LabVIEW as the programming language. The test results show that the control system performances stably and accurately, meeting the requirements of EAST operation experiment for real-time control of gyrotron power. It has important application value for the further research of EAST operation experiment and popularization value for the development of similar control systems.

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A novel ultra-wideband waveguide-to-microstrip transition for millimeter-wave applications

Cited by 5 publications

References 9 publications

Structural, electronic, magnetic and thermoelectric properties of Tl₂NbX₆ (X = Cl, Br) variant perovskites calculated via density functional theory

Structural, electronic, magnetic and thermoelectric properties of Tl₂NbX₆ (X = Cl, Br) variant perovskites calculated via density functional theory

Millimeter-wave detector for gyrotron power monitoring

Design of real-time power control system for gyrotron

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A novel ultra-wideband waveguide-to-microstrip transition for millimeter-wave applications

Cited by 5 publications

References 9 publications

Structural, electronic, magnetic and thermoelectric properties of Tl2NbX6 (X = Cl, Br) variant perovskites calculated via density functional theory

Structural, electronic, magnetic and thermoelectric properties of Tl2NbX6 (X = Cl, Br) variant perovskites calculated via density functional theory

Millimeter-wave detector for gyrotron power monitoring

Design of real-time power control system for gyrotron

Contact Info

Product

Resources

About

Structural, electronic, magnetic and thermoelectric properties of Tl₂NbX₆ (X = Cl, Br) variant perovskites calculated via density functional theory

Structural, electronic, magnetic and thermoelectric properties of Tl₂NbX₆ (X = Cl, Br) variant perovskites calculated via density functional theory