A TM01-TE11 Circular Waveguide Mode Converter on the Basis of Dielectric Filling [PDF]
MicromachinesIn this paper, a dielectric-filled circular waveguide TM01-TE11 mode converter is proposed, which has high conversion efficiency and a wide operating bandwidth.
Zibin Weng +4 more
doaj +2 more sources
Simulation and performance analysis of plasma switch for microwave amplification in T shaped circular waveguide in the S band [PDF]
Scientific ReportsIn this work, the control and amplification of microwaves in a T-shaped circular waveguide in the S-band using a plasma switch are simulated using Computer Simulation Technology (CST) software and the Finite-Difference Time-Domain (FDTD) method.
Javad Taghinejad +2 more
doaj +2 more sources
Attenuation in Superconducting Circular Waveguides [PDF]
Advanced Electromagnetics, 2016 We present an analysis on wave propagation in superconducting circular waveguides. In order to account for the presence of quasiparticles in the intragap states of a superconductor, we employ the characteristic equation derived from the extended Mattis ...
K. H. Yeap +4 more
doaj +2 more sources
Simulation-Based Approach to the Matching of a Dielectric-Filled Circular Waveguide Aperture [PDF]
SensorsThe circular waveguide aperture or open-end radiator, one of the canonical antenna elements, can be filled with a dielectric material for miniaturization.
Songyuan Xu +4 more
doaj +2 more sources
THE TE₀₁ WAVE EXCITATION IN A CIRCULAR WAVEGUIDE USING HIGHER-ORDER MODES OF AN OPEN RESONATOR [PDF]
Radio Physics and Radio Astronomy, 2023 Subject and Purpose. Peculiarities of the TE₀₁ wave excitation in a circular waveguide located in the center of the flat mirror of a hemispherical open resonator (OR) are studied using the OR oscillation type TEМ₃₀q and the OR degenerate oscillation type
I. K. Kuzmichov +4 more
doaj +1 more source
The Use of Mathematical Finite Element Method to find the Optimum Waves Amplification by a Novel Elliptical Waveguide [PDF]
Mathematics Interdisciplinary Research, 2021 In this paper, a combinatorial elliptic-circular waveguide is introduced to amplify electromagnetic waves. The cross-section of this waveguide is elliptic and filled by a dielectric material, whereas two axial circular hollows have been created in it ...
Zeinab Rahmani
doaj +1 more source
Circular Waveguide Polarizer for Weather Radars and Satellite Information Systems
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021 This research presents the design and main electromagnetic characteristics of the novel compact microwave waveguide polarizer. The developed device's structure is based on a circular waveguide and anti-phase conducting posts located in it.
Stepan Piltyay
doaj +1 more source
Design, and Fabrication of X-band Antenna for Sensing Satellite with the Use of Circular Probe and Radiation Pattern Directing Blades [PDF]
علوم، فناوری و کاربردهای فضایی, 2023 In this paper a waveguide antenna to create a saddle shaped pattern for remote sensing satellite applications has been introduced, and a method to excite a waveguide as feeding X-band antenna with the aim of achieving circular polarization has been ...
Hossein Eskandari +2 more
doaj +1 more source
Broadband Circularly Polarized Conical Corrugated Horn Antenna Using a Dielectric Circular Polarizer
Micromachines, 2022 In this paper, a broadband left-handed circularly polarized (LHCP) corrugated horn antenna using a dielectric circular polarizer is proposed. Circularly polarized (CP) waves are generated by inserting an improved dovetail-shaped dielectric plate into the
Jun Xiao +4 more
doaj +1 more source
Bose-Einstein Condensation in a Circular Waveguide [PDF]
Physical Review Letters, 2005 We have produced Bose-Einstein condensates in a ring-shaped magnetic waveguide. The few-millimeter diameter non-zero bias ring is formed from a time-averaged quadrupole ring. Condensates which propagate around the ring make several revolutions within the time it takes for them to expand to fill the ring.
Gupta, S. +4 more
openaire +3 more sources