Analysis of Narrow Slot Loading on a Half Guided Wavelength Folded Substrate Integrated Waveguide

In this paper, effects due to variation in positioning, width and length of a narrow slot loaded on central metal septum of a half guided wavelength Folded Substrate Integrated Waveguide (FSIW) segment is presented. The study shows that the most significant effect is due to variation in slot length. It was observed that the slot loading can be used both for slow wave structure and filter depending on the length of the slot. The smaller lengths of the slot provide the slow wave effect, whereas the longer lengths result in filtering effect. Both the phenomena are explained with the help of field diagrams for different propagating modes and extracted equivalent circuit for the Slot Loaded Folded Substrate Integrated Waveguide (SFSIW) segment. This study will help in deciding the dimensions of the slot as per application. The measured scattering parameters of the fabricated structure are compared with the simulated results obtained from the HFSS and the circuit simulator in ADS and are in good agreement.

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Study of dielectric loss on helical slow-wave structure using high frequency circuit simulator

2009 IEEE International Vacuum Electronics Conference ◽

10.1109/ivelec.2009.5193565 ◽

2009 ◽

Cited By ~ 3

Author(s):

XianPu Liang ◽

JianQing Li ◽

Li Xu ◽

ZhongHai Yang ◽

Bin Li ◽

...

Keyword(s):

Dielectric Loss ◽

Slow Wave ◽

High Frequency ◽

Wave Structure ◽

Slow Wave Structure ◽

Circuit Simulator

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Experimental investigation and modelling of light scattering in a-Si:H solar cells deposited on glass/ZnO:Al substrates

MRS Proceedings ◽

10.1557/proc-715-a13.3 ◽

2002 ◽

Vol 715 ◽

Cited By ~ 3

Author(s):

J. Krc ◽

M. Zeman ◽

O. Kluth ◽

F. Smole ◽

M. Topic

Keyword(s):

Surface Roughness ◽

Experimental Investigation ◽

Solar Cells ◽

Angular Distribution ◽

Light Scattering ◽

Optical Model ◽

Distribution Functions ◽

Interface Roughness ◽

Scattering Parameters ◽

Good Agreement

AbstractThe descriptive scattering parameters, haze and angular distribution functions of textured ZnO:Al transparent conductive oxides with different surface roughness are measured. An approach to determine the scattering parameters of all internal interfaces in p-i-n a-Si:H solar cells deposited on the glass/ZnO:Al substrates is presented. Using the determined scattering parameters as the input parameters of the optical model, a good agreement between the measured and simulated quantum efficiencies of the p-i-n a-Si:H solar cells with different interface roughness is achieved.

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Amplification of the Multifrequency Signal in the Coaxial Slow-Wave Structure

Telecommunications and Radio Engineering ◽

10.1615/telecomradeng.v67.i2.70 ◽

2008 ◽

Vol 67 (2) ◽

pp. 177-189

Author(s):

K. V. Galaidych ◽

P. I. Markov ◽

G. V. Sotnikov

Keyword(s):

Slow Wave ◽

Wave Structure ◽

Slow Wave Structure ◽

Coaxial Slow Wave Structure ◽

Multifrequency Signal

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Excitation of Lower-Hybrid Waves by a Slow-Wave Structure

Physical Review Letters ◽

10.1103/physrevlett.34.124 ◽

1975 ◽

Vol 34 (3) ◽

pp. 124-127 ◽

Cited By ~ 58

Author(s):

P. Bellan ◽

M. Porkolab

Keyword(s):

Slow Wave ◽

Wave Structure ◽

Slow Wave Structure ◽

Lower Hybrid ◽

Hybrid Waves ◽

Lower Hybrid Waves

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Improvement of the Performance of a Helix Slow-Wave Structure With a Copper-Embedded Barrel

IEEE Transactions on Electron Devices ◽

10.1109/ted.2010.2043398 ◽

2010 ◽

Vol 57 (5) ◽

pp. 1178-1182 ◽

Cited By ~ 1

Author(s):

Yong Han ◽

Yan-Wen Liu ◽

Yao-Gen Ding ◽

Pu-Kun Liu

Keyword(s):

Slow Wave ◽

Wave Structure ◽

Slow Wave Structure

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Interferential seeing monitor, a seeing monitor for atmospheric turbulence studies: calibration with the differential image motion monitor

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/staa2400 ◽

2020 ◽

Vol 500 (2) ◽

pp. 1884-1888

Author(s):

Mohammed Sabil ◽

A Habib ◽

Z Benkhaldoun

Keyword(s):

Structure Function ◽

Atmospheric Turbulence ◽

Wave Structure ◽

Image Motion ◽

Phase Fluctuations ◽

Amplitude Fluctuations ◽

Focus Plane ◽

Cross Calibration ◽

Double Slit ◽

Good Agreement

ABSTRACT In this work, we aim to calibrate an interferential seeing monitor (ISM), which is a testing instument used at astronomical sites. Its method is based on the study of the diffraction pattern produced by a Young’s double-slit at the focus plane of a telescope. This method allows us to obtain the wave structure function by taking into account both phase and amplitude fluctuations of the light wavefront. A phase seeing εϕ was assigned to phase fluctuations and an amplitude seeing εχ was assigned to amplitude fluctuations (scintillation phenomenon), which allows us to obtain both phase and amplitude fluctuations. The feasibility of the ISM method was demonstrated by numerical simulations presented in a previous work. In this work, we have conducted a cross-calibration campaign of the ISM with a differential image motion monitor (DIMM) over 16 nights at the Oukaimeden and Atlas Golf Marrakech Observatories. The goal of this campaign was to study the reliability of this new method. In this paper, we present the calibration measurements and a comparison between the seeing measured by the ISM (εϕ, εχ) and that obtained by the DIMM (εdimm). These results show good agreement between the phase- eeing εϕ and εdimm.

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