Results 11 to 20 of about 14,945 (257)
Pattern-Reconfigurable Cylindrical Dielectric Resonator Antenna Based on Parasitic Elements
IEEE Access, 2017 A novel pattern-reconfigurable cylindrical dielectric resonator antenna is presented. By the incorporation of four p-i-n diode switches and four parasitic elements, the mode of dielectric resonator excited by the probe changed.
Bei-Jia Liu +3 more
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A new planar feeding method of dielectric rod antenna using dielectric resonator
Scientific Reports, 2023 This article proposes a new method for exciting surface waves in dielectric rod antennas using dielectric resonator antennas. The method involves housing a rectangular dielectric resonator antenna with a dielectric constant of 10.2 inside a hollow ...
Saeed Fakhte
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TWO-LAYERED QUASIOPTICAL SAPPHIRE RESONATOR FOR BIOLIQUIDS DIELECTROMETRY [PDF]
Радиофизика и электроника, 2017 WGM resonators can be used for studies of condensed matter, especially for the study of the dielectric liquids properties. However, the electromagnetic properties of the real resonator structures are not well understood.
А. А. Barannik +2 more
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Rotations of Cylindrical Dielectric Resonators in a Rectangular Waveguide
Vìsnik 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
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International Journal of Antennas and Propagation, 2022 In this paper, a single-fed wideband circularly polarized dielectric resonator antenna (DRA) is proposed. The antenna consists of a substrate, a cylindrical dielectric resonator, and four curved parasitic metal blocks that are rotated and placed around ...
Zizu Chen +5 more
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Cylindrical dielectric resonator antenna array
Electronics Letters, 1995 A 1/spl times/2 linear cylindrical resonator antenna array is studied experimentally. The DR antenna is excited by an aperture-coupled source and is operated at the fundamental broadside TM/sub 110/ mode. The input impedance, the radiation pattern, the antenna gain, and the mutual coupling of the array are studied.
K.Y. Chow +3 more
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Reconstruction of annular bi-layered media in cylindrical waveguide section [PDF]
, 2016 A radial transverse resonance model for two cylindrical concentric layers with different complex dielectric constants is presented. An inverse problem with four unknowns - 3 physical material parameters and one dimensional dielectric layer thickness ...
Beilina, Larisa +2 more
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Switchable cylindrical dielectric resonator antenna
Electronics Letters, 1996 A switchable cylindrical dielectric resonator antenna operating in four different radiation modes is reported. Two linear polarised, one circular polarised, and a nonradiating mode are implemented. The experimental results of the resonant frequency, boresight axial ratio, gain, unloaded Q-factor, impedance bandwidth and radiation efficiency are ...
G. Drossos, Z. Wu, L.E. Davis
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International Journal of Antennas and Propagation, 2012 The-hybrid dielectric resonator antenna consisted of a cylindrical high-permittivity dielectric resonator, a rectangular slot, and two-rectangular patches were implemented. The hybrid dielectric resonator antenna had three resonant frequencies. The lower,
Yih-Chien Chen
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YIG Matrix Based Multiband Magneto-Dielectric Cylindrical Resonator Antenna
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021 A multiband magneto-dielectric resonator antenna with cylindrical geometry is proposed in this paper. The resonator is composed of yttrium iron garnet (YIG) with chemical composition Y3Fe2(FeO4)3. The final structure is built on a low-cost FR4 dielectric
Andrécia Pereira da Costa +3 more
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