Results 21 to 30 of about 18,665 (298)
Cylindrical resonator filled with four alternating sectors of DPS and DNG materials [PDF]
, 2013 A circular cylindrical metallic resonator with four alternating sectors of DPS and DNG materials is analyzed, in the frequency domain. The two materials are linear, lossless, homogeneous, and anti-isorefractive to each other.
Graglia, Roberto +7 more
core +1 more source
Evaluation of Microwave Characterization Methods for Additively Manufactured Materials
Designs, 2019 Additive manufacturing (AM) has become more important and common in recent years. Advantages of AM include the ability to rapidly design and fabricate samples much faster than traditional manufacturing processes and to create complex internal geometries.
Chih-Kuo Lee +10 more
doaj +1 more source
Klynotron with using the open resonator and symmetric conical corrugated mirrors – goratron
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2021 А further development of the radial klynoorotron idea – klynotron with symmetric conical radial corrugated resonator mirrors, is presented in the article.
A. A. Kurayev, V. V. Matveyenka
doaj +1 more source
Quasioptical millimeter wave solid-state generator [PDF]
Радиофизика и электроника, 2018 Subject and purpose. Open resonant system as the oscillating circuit of the solid-state oscillators and characteristics of the quasi-optical oscillators properly are the object of investigations.
O. I. Bilous +5 more
doaj +1 more source
Sensors, 2022 A stabilized narrow-linewidth random fiber laser for strain detection, based on a three-grating ring (TGR) resonator and half-open-cavity structure, is proposed and investigated experimentally.
Bing Lv +4 more
doaj +1 more source
Q-FACTOR MEASUREMENTS UNDER CONDITIONS OF CLOSE-FREQUENCY MODES CONVERGENCE IN OPEN RESONATORS [PDF]
Радиофизика и электроника, 2015 A method is proposed for measuring the Q-factor of microwave resonators, which allows the study of microwave properties of materials and environments using open resonators of different types under conditions of availability of close-frequency modes in ...
V. N. Skresanov, V. V. Glamazdin
doaj +1 more source
Comparative study of textile material characterization techniques for wearable antennas
Results in Materials, 2021 A comparative study of Quarter-wavelength λ4 stub and ring resonator techniques for the characterization of four (4) different textile materials (Kente-Oke (M1), Sanya (M2), Alaari (M3) and Etu (M4)) are presented in this work for the first time.
Jeremiah O. Abolade +2 more
doaj +1 more source
THE HIGHER ORDER MODES IN THE OPEN RESONATOR WITH THE SEGMENT OF THE CIRCULAR WAVEGUIDE
Radio 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
Pollicott–Ruelle Resonances for Open Systems [PDF]
Annales Henri Poincaré, 2016 We define Pollicott-Ruelle resonances for geodesic flows on noncompact asymptotically hyperbolic negatively curved manifolds, as well as for more general open hyperbolic systems related to Axiom A flows. These resonances are the poles of the meromorphic continuation of the resolvent of the generator of the flow and they describe decay of classical ...
Dyatlov, Semyon, Guillarmou, Colin
openaire +3 more sources
OPEN RESONATOR FOR SUMMATION OF POWERS IN SUB-TERAHERTZ AND TERAHERTZ FREQUENCIES
Radio Physics and Radio Astronomy, 2017 Purpose: Study of excitation features for the first higher axialasymmetric type oscillations in an open resonator connected into the waveguide transmission line. Design/methodology/approach: To determine the efficiency of higher oscillation excitation
I. K. Kuz’michev +3 more
doaj +1 more source