Diapason Properties of Resonant Aperture Sensors for Microwave Diagnostics of Small Objects

Gordienko, Yu. Ye.; Shcherban, I. M.

doi:10.1615/telecomradeng.v79.i9.60

Cited by 1 publication

(2 citation statements)

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“…An alternative to the tip-sample distance, as a tool for expanding the sensitivity of the probe, as shown in our works, can be a resonator with a displaced tip relative to the aperture plane [14,17]. The range of measurement of electrophysical parameters of objects of classical quarterwave RMT is within the limits ε: 1-15, tg: 0.001-0.1.…”

Section: Description and Analysis Of The Re-sultsmentioning

confidence: 74%

“…8. As shown in our works [14,17,18], the most effective range of change in the position of the tip tip is limited primarily by the sensitivity of the sensor and is of the order of several values of the tip radius both when extending from the resonator and when immersed in it. However, as shown in [19], when the tip of the probe extends beyond the aperture plane by an amount exceeding ten times or more the value of R1t, the sensor begins to radiate and switches to the monopole antenna mode.…”

Section: Description and Analysis Of The Re-sultsmentioning

confidence: 81%

See 1 more Smart Citation

Electrodynamic Properties of Resonator Probes for Local Microwave Diagnostics of Nanoelectronic Objects

Babychenko,

Vasiliev,

Karnaushenko

et al. 2024

J. Nano- Electron. Phys.

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The work focuses on detailing the distribution of the near evanescent field depending on the geometry of the aperture-forming region, the electrical properties of the objects under study, and assessing methods for scanning the properties of objects in depth. The results of a study of the electrodynamic properties of resonator probes with a coaxial aperture, developed for local microwave diagnostics of various objects, are presented. In particular, the influence of the size and shape of the tip and the tip-sample distance on the field distribution of a classical quarter-wave resonator measuring transducer is analyzed. Quantitative dependencies are presented that comprehensively characterize the probe-object system in terms of locality and sensitivity. Various options for changing the geometry of the probe aperture assembly are discussed to optimize the conversion characteristics of microwave sensors. The results of a study of the field distribution of a probe with tunable sensitivity by changing the position of the tip tip relative to the aperture plane are presented. The dependence of the field distribution on the tip displacement in such a probe has been established. Various variations of the operating modes of a probe with tunable sensitivity were studied: immersion of the tip into the probe aperture, extension of the tip into the interior of the object, extension of the probe tip from the aperture to the surface of the object.

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Section: Description and Analysis Of The Re-sultsmentioning

confidence: 74%