Results 11 to 20 of about 5,311 (260)

Dispersion Analysis of Twist-Symmetric Dielectric Waveguides

open access: yesPhotonics, 2021
We propose a circular twist-symmetric dielectric waveguide that is polarization-selective. In the practical implementation of optical fibers, a selective circular polarization is more convenient than its linearly polarized counterpart where previous ...
Pilar Castillo-Tapia   +5 more
doaj   +1 more source

Multipactor Analysis in Circular Waveguides

open access: yesJournal of Electromagnetic Waves and Applications, 2009
This work has been supported by Ministerio de Ciencia e Innovación, Spanish Government, under Research Project TEC2007-67630-C03-01.
Pérez Pastor, Antonio María   +5 more
openaire   +2 more sources

THE HIGHER ORDER MODES IN THE OPEN RESONATOR WITH THE SEGMENT OF THE CIRCULAR WAVEGUIDE

open access: yesRadio Physics and Radio Astronomy, 2019
Purpose: Study of the TE01 wave excitation efficiency in a segment of the circular waveguide located in the center of one of the mirrors of the open resonator with the help of the higher order mode TEM30q (in the Hermite-Gauss functions) and the ...
M. E. Ilchenko   +4 more
doaj   +1 more source

Vortex Solitons in Twisted Circular Waveguide Arrays

open access: yesPhysical Review Letters, 2022
6 pages, 5 figures, to appear in Physical Review ...
Liangwei Dong   +3 more
openaire   +5 more sources

Thick eccentric circular iris in circular waveguide [PDF]

open access: yesIEEE Transactions on Microwave Theory and Techniques, 1998
Other researchers have observed that eccentric irises possess certain advantageous features that may lead designers to prefer them over the conventional concentric irises. The least-squares boundary residual method (LSBRM) is utilized in this paper to analyze the behavior of such an eccentric-iris structure (of nonzero thickness).
S.P. Yeo, S.G. Teo
openaire   +1 more source

Mode selection characteristics in a circular waveguide loaded with a left-handed metamaterial

open access: yesAIP Advances, 2019
We theoretically study mode selection characteristics in a left-handed metamaterial (LHM) loaded into a circular waveguide. The existent modes in the circular waveguide are closely related to the radius of the coaxially loaded LHM, and a general rule ...
Zhiqiang Fan   +5 more
doaj   +1 more source

High-Efficiency, Broadband Converter From A Rectangular Waveguide TE10 Mode to A Circular Waveguide TM01 Mode for Overmoded Device Measurement

open access: yesIEEE Access, 2018
To accurately measure the performance of overmoded devices used in high-power microwave systems, a novel structure that effectively converts the TE10 mode in a rectangular waveguide to a high-purity TM01 mode in a circular waveguide is proposed.
Xinhong Cui   +8 more
doaj   +1 more source

High-efficiency and compact microwave heating system for liquid in a mug

open access: yesCase Studies in Thermal Engineering, 2023
The demand for efficient and compact heating for dynamic dielectric liquid has grown significantly. Compared with traditional heating, microwave heating has the advantages of being fast and efficient. Moreover, the demand for outdoor portable heating and
Yan Xia   +3 more
doaj   +1 more source

TERAHERTZ TRAVELING-WAVE TUBE ON A RECTANGULAR WAVEGUIDE FOLDED IN A CIRCULAR SPIRAL

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The most promising in the THz range is traveling-wave tubes (TWTs) and backward-wave tubes (BWTs) on a serpentine-curved (zigzag-rolled) rectangular waveguide.
A. A. Kurayev, V. V. Matveyenka
doaj   +1 more source

Characteristics of VLF atmospherics near the resonance frequency of the Earth-ionosphere waveguide 1.6–2.3 kHz by observations in the auroral region [PDF]

open access: yesAnnales Geophysicae, 2010
Recordings of ELF-VLF waves with the right-hand (RH) and the left-hand (LH) circular polarization were made in Northern Finland. Analysis showed a difference between the RH and LH polarized waves.
A. A. Ostapenko   +6 more
doaj   +1 more source

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