Dielectric half-disk resonator with whispering-gallery modes for measurements of the electric properties of water

Kirichenko, A. Ya.; Kogut, A. E.

doi:10.1007/s11141-008-9073-z

Cited by 2 publications

(3 citation statements)

References 3 publications

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“…We have designed a measurement waveguide cavity (Figs 1 and 2) for our dielectrometer with the operating frequency 31.82 GHz [24]. The advantages of our dielectrometer are as follows: autonomy, small overall dimensions (compared to the laptop size), transportability, ease of operation, short measurement time (up to 5 min.…”

Section: The Differential Waveguide Measurement Cavitymentioning

confidence: 99%

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High loss liquid dielectric characterization: Comparison of microwave waveguide and resonator measurement techniques

Eremenko

Shubnyi

Kogut

et al. 2020

Int. J. Microw. Wireless Technol.

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The microwave waveguide and resonator methods are compared as applied to the experimental determination of the dielectric properties of high loss liquids. A differential microwave waveguide cavity for measuring high loss liquids complex permittivity in a small volume has been designed and studied. This cavity consists of two circular waveguide cells with central rods made of quartz and surrounded by high loss liquid tested. The cells have different lengths to eliminate complex propagation coefficient measurement errors due to the diffraction effect on the ends of the layered waveguide cells. We have measured the wave amplitude and phase coefficients for the waveguide cavity to estimate physical properties of a high loss liquid under test. The resonant frequencies and the Q-factor of a semi-disk dielectric resonator with high loss liquid filling a capillary have been measured. We have selected water-ethanol solutions as a high loss liquid under test for both techniques. We have determined the measurement sensitivity for these two techniques. The measuring results are discussed. Both the waveguide and resonator methods provide comparable sensitivity and can be successfully used for the complex permittivity characterization of high loss liquids in small volumes.

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Section: The Differential Waveguide Measurement Cavitymentioning

confidence: 99%

“…3). The liquid under test fills both measurement cells unlike the previously used measurement cavity [24]. Now we do not need a reference liquid.…”

Section: The Differential Waveguide Measurement Cavitymentioning

confidence: 99%

High loss liquid dielectric characterization: Comparison of microwave waveguide and resonator measurement techniques

Eremenko

Shubnyi

Kogut

et al. 2020

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

show abstract

“…Starting from the eighties, the importance of the WGM resonators for mm-wave, subMM-wave, and visible-wave applications became more and more recognized [10,11,[18][19][20][21][22]. Despite their simplicity, WGM resonators can combine extremely high quality factors with a well-resolved resonance spectrum [23], which makes these resonators an ideal candidate for many applications as electronic [20,[24][25][26][27][28][29], spectroscopy, and sensing [30,31].…”

Section: Introductionmentioning

confidence: 99%

Millimeter Wave All-Around Antenna Based on Whispering Gallery Mode Dielectric Resonator for IoT-Based Applications

Kogut

Annino

Bakkali

et al. 2022

Wireless Communications and Mobile Computing

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This work is devoted to the study of the emitting properties of azimuthally inhomogeneous segmental dielectric resonators excited by whispering gallery modes. Due to the diffraction of the azimuthal waves on local nonhomogeneities located equidistantly along the azimuthal coordinate, intense electromagnetic radiation is achieved in the azimuthal sector of the angles 0°-360°. A prototype of an all-around emitting antenna based on basis of a segmental dielectric resonator is proposed, and its characteristics in the far zone are studied. It is shown that such an antenna forms a multilobe radiation pattern (72 lobes) in the circle sector of angles. The antenna gain in the lobes at the resonant frequency reaches 12 dB. Antenna optimization is achieved in the proposed method because of the large gain produced by the antenna. It is also analyzed that these types of radiation patterns observed by antennas are well used for the Internet of Things- (IoT-) based applications.

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Dielectric half-disk resonator with whispering-gallery modes for measurements of the electric properties of water

Cited by 2 publications

References 3 publications

High loss liquid dielectric characterization: Comparison of microwave waveguide and resonator measurement techniques

High loss liquid dielectric characterization: Comparison of microwave waveguide and resonator measurement techniques

Millimeter Wave All-Around Antenna Based on Whispering Gallery Mode Dielectric Resonator for IoT-Based Applications

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