On the nature of the microwave field emerging from a composite pupil
| Autor: | Daniela Mugnai, Anedio Ranfagni, Ilaria Cacciari |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
microwave Field (physics) business.industry Composite number Statistical and Nonlinear Physics Near and far field 02 engineering and technology Dissipation 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Pupil 010309 optics Optics 0103 physical sciences composed pupil 0210 nano-technology business Microwave |
| Zdroj: | Modern physics letters B (2020). doi:10.1142/S0217984920502474 info:cnr-pdr/source/autori:I.Cacciari, Daniela Mugnai, Anedio Ranfagni/titolo:On the nature of the microwave field emerging from a composite pupil/doi:10.1142%2FS0217984920502474/rivista:Modern physics letters B/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume |
| ISSN: | 1793-6640 0217-9849 |
| Popis: | Further experimental investigations in the microwave field emerging from a composite pupil are reported in order to determine the nature of the wave propagation. The experiments consisted of delay-time measurements as a function of the distance of the detector from the pupil under test, as well as of the phase variation of a radio-frequency signal at 35 MHz that modulated the same microwave carrier at 9.33 GHz. In addition, measurements employing an admittance comparator were made in order to determine the character of the propagation impedance. All results obtained confirmed superluminal behavior in the near field, up to a distance of about 40 cm. These results were then interpreted within the framework of a stochastic model. |
| Databáze: | OpenAIRE |
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