Results 21 to 30 of about 41,645 (243)

Bragg waveguide of rectangular cross-section [PDF]

open access: yesКомпьютерная оптика, 2020
A method for calculating parameters of rectangular waveguides using separation of variables is presented. The method makes it possible to calculate multilayer Bragg waveguides with an arbitrary number of layers and an arbitrary composition as photonic ...
N.V. Selina
doaj   +1 more source

Rotations of Cylindrical Dielectric Resonators in a Rectangular Waveguide

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2021
The coupling coefficients of cylindrical dielectric resonators with a regular rectangular waveguide under the condition their axes rotation are calculated. The dependences of the coupling coefficients on the angles of rotation and transverse coordinates
A. A. Trubin
doaj   +1 more source

Trapped modes in a waveguide with a long obstacle [PDF]

open access: yes, 2002
Consider an infinite two-dimensional acoustic waveguide containing a long rectangular obstacle placed symmetrically with respect to the centreline. We search for trapped modes, i.e.
Khallaf, NSA, Parnovski, L, Vassiliev, D
core   +1 more source

Rectangular Waveguide Filters With Meandered Topology [PDF]

open access: yesIEEE Transactions on Microwave Theory and Techniques, 2018
This work was supported by ESA’s Networking/Partnering Initiative (NPI) under Contract 4000114859/15/NL/HK, Gobierno de Navarra under Project 0011-1365-2017-000130, and MINECO (Spain) under Projects TEC2014- 51902-C2-2-R and TEC2017-85529-C3-2-R.
Fernando Teberio   +6 more
openaire   +3 more sources

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

An Ultra-Thin and Compact Band-Pass Filter Based on Spoof Surface Plasmon Polaritons

open access: yesIEEE Access, 2020
In this work, we report an ultra-thin and compact SSPPs-based waveguide band-pass filter with metals etched on the top surface of substrate, and the side and bottom surfaces of substrate also are covered with metals.
Liaori Jidi   +5 more
doaj   +1 more source

ENERGY CHARACTERISTICS OF A RECTANGULAR WAVEGUIDE T-JUNCTION INTERACTING WITH A MULTIELEMENT VIBRATOR-SLOT COUPLING STRUCTURE [PDF]

open access: yesРадиофизика и электроника, 2016
The study of peculiarity of influence of the impedance insertions on the electrodynamic characteristics of the rectangular waveguide junctions, which are widely used in the antenna-waveguide devices, is important for practical applications.
S. L. Berdnik   +4 more
doaj   +1 more source

Element for Matching a Waveguide Transmission Line with a Diode

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2023
The article deals with the issues of matching a waveguide transmission line with millimeter wave diodes. The implementation of the transition of a rectangular waveguide to a microstrip switching line in the form of a line of the fin-line type is ...
I. A. Zakharov   +7 more
doaj   +1 more source

General Approach for the Sensitivity Analysis and Optimization of Integrated Optical Evanescent-Wave Sensors [PDF]

open access: yes, 2014
The optimization of integrated optical evanescent-wave sensors is dual. For optimal performances, we require waveguides with both maximal sensitivity to the measurand, the quantity intended to be measured, and minimal sensitivities to perturbations.
Delezoide, Camille   +2 more
core   +1 more source

Broadband and High-Efficiency Excitation of Spoof Surface Plasmon Polaritons Through Rectangular Waveguide

open access: yesFrontiers in Physics, 2020
Spoof surface plasmon polaritons (SPPs) are highly localized surface waves that can be supported on metal surfaces with subwavelength decorations. Mode matching and momentum matching have been investigated so as to efficiently excite the spoof SPPs ...
Wenxuan Tang   +6 more
doaj   +1 more source

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