Analytical Investigation on a New Approach for Achieving Deep Penetration in a Lossy Medium: The Lossy Prism

Frezza, Fabrizio; Simeoni, Patrizio; Tedeschi, Nicola

doi:10.26636/jtit.2017.119917

Cited by 2 publications

(16 citation statements)

References 18 publications

(36 reference statements)

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“…We can observe that increasing the σ value of the lossy medium the penetration performance of the two antennas tends to align, while when σ diminishes LWA penetration becomes noticeably higher. This result confirms the theoretical results found in [6] for inhomogeneous plane waves.…”

Section: Results Varying the Conductivitysupporting

confidence: 92%

“…Moreover, it was demonstrated in [1], [2], that the deeppenetration condition can only be obtained for oblique incidence. Such a condition, as highlighted in [6], is not very practical for many applications, where, instead, normal incidence is recommended. We investigate here the penetration achievable in the normal incidence condition employing leaky-wave antennas, we numerically verify the role played by the incidence angle, and finally, the lossy prism proposed in [6] is numerically studied in a suitable antenna structure to verify its penetration properties.…”

Section: The Scenariomentioning

confidence: 99%

“…Such a condition, as highlighted in [6], is not very practical for many applications, where, instead, normal incidence is recommended. We investigate here the penetration achievable in the normal incidence condition employing leaky-wave antennas, we numerically verify the role played by the incidence angle, and finally, the lossy prism proposed in [6] is numerically studied in a suitable antenna structure to verify its penetration properties. The design proposed here is a numerical prototype which intends to serve as an input to lossy-prism antennas design for practical and realistic scenarios.…”

Section: The Scenariomentioning

confidence: 99%

“…Recently, it has been demonstrated, analytically, that a twodimensional lossy prism, firstly introduced in [24], may achieve a larger penetration than the one obtained by conventional leaky-wave antennas [6]. The first numerical prototype of this geometrical structure was presented in [25].…”

Section: Leaky Wave Through a Two-dimensional Lossy Prismmentioning

confidence: 99%

“…a two-dimensional horn antenna also known in the literature as dihedral horn [26]: a TEM antenna allows a full control of the beam incidence angle on the lossy prism. The vertex of the lossy prism, indicated with χ in [6], is set to 90…”

Section: Leaky Wave Through a Two-dimensional Lossy Prismmentioning

confidence: 99%

See 4 more Smart Citations

Numerical Evaluation of Electromagnetic-wave Penetration at Normal Incidence through an Inhomogeneous-wave Approach

Calcaterra¹,

Frezza²,

Simeoni³

et al. 2018

JTIT

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Abstract-This paper presents numerical scenarios concerning penetration in a lossy medium that can be obtained by radiating inhomogeneous electromagnetic waves. Former papers approached this problem, both analytically and numerically, finding requirements and limits of the so-called "deeppenetration" condition, which consists of a wave transmitted in a lossy medium having an attenuation vector whose direction forms the angle of ninety degrees with the normal to the separation surface. The deep-penetration condition always requires an oblique incidence, therefore is not practical in many applications. For this reason, we are interested here in finding whether an inhomogeneous wave guarantees larger penetration than the one obtainable with homogeneous waves, even when the incident wave is normal to the separation surface between two media, i.e. when the deep-penetration condition is not satisfied. We are also interested in verifying numerically whether the lossy-prism structure may achieve larger penetration than the one obtainable through traditional leakywave antennas, and we also wish to propose a lossy-prism design more realistic than the one previously presented in the literature.

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Section: Results Varying the Conductivitysupporting

confidence: 92%

Section: The Scenariomentioning

confidence: 99%

Section: The Scenariomentioning

confidence: 99%

Section: Leaky Wave Through a Two-dimensional Lossy Prismmentioning

confidence: 99%

Section: Leaky Wave Through a Two-dimensional Lossy Prismmentioning

confidence: 99%

See 3 more Smart Citations

Numerical Evaluation of Electromagnetic-wave Penetration at Normal Incidence through an Inhomogeneous-wave Approach

Calcaterra¹,

Frezza²,

Simeoni³

et al. 2018

JTIT

Self Cite

View full text Add to dashboard Cite

show abstract

Verification of the electromagnetic deep-penetration effect in the real world

Baccarelli

Calcaterra

Frezza

et al. 2021

Sci Rep

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The deep penetration of electromagnetic waves into lossy media can be obtained by properly generating inhomogeneous waves. In this work, for the very first time, we demonstrate the physical implementation and the practical relevance of this phenomenon. A thorough numerical investigation of the deep-penetration effects has been performed by designing and comparing three distinct practical radiators, emitting either homogeneous or inhomogeneous waves. As concerns the latter kind, a typical Menzel microstrip antenna is first used to radiate improper leaky waves. Then, a completely new approach based on an optimized 3-D horn TEM antenna applied to a lossy prism is described, which may find applications even at optical frequencies. The effectiveness of the proposed radiators is measured using different algorithms to consider distinct aspects of the propagation in lossy media. We finally demonstrate that the deep penetration is possible, by extending the ideal and theoretical evidence to practical relevance, and discuss both achievements and limits obtained through numerical simulations on the designed antennas.

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Analytical Investigation on a New Approach for Achieving Deep Penetration in a Lossy Medium: The Lossy Prism

Cited by 2 publications

References 18 publications

Numerical Evaluation of Electromagnetic-wave Penetration at Normal Incidence through an Inhomogeneous-wave Approach

Numerical Evaluation of Electromagnetic-wave Penetration at Normal Incidence through an Inhomogeneous-wave Approach

Verification of the electromagnetic deep-penetration effect in the real world

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