Wideband Quasi-Nondiffraction Beam With Accurately Controllable Propagating Angle and Depth-of-Field

Zhong, Yi; Cheng, Yu Jian

doi:10.1109/tap.2017.2736536

Cited by 42 publications

(12 citation statements)

References 27 publications

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“…As the frequency increases, the main beam is bent and the deflection angle almost remains unchanged. Besides, the inclined non-diffractive beam has lower sidelobes compared to that in [12] and [14], as displayed in Table 1.…”

Section: Performance Of Transmission Phase-shifted Metasurface Arraymentioning

confidence: 95%

“…But its deflection angle was only 12°and the radio frequency feeder was on the same side of the target, which would limit the deflecting direction of the nondiffractive beam. To solve the problem, the transmission structures have been designed to achieve non-diffracting beams [11,12]. In [11], a curved leaky wave antenna structure was designed to deflect the non-diffractive beam.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, the non‐diffractive beams at arbitrary tilted angle have been generated [11–13]. In 13, Cheng et al.…”

Section: Introductionmentioning

confidence: 99%

“…Many structures have been designed to achieve nondiffractive beams in optics and microwaves, such as axicon lens, radial leakage waveguides and radial line slot arrays [11,12], etc. However, the non-diffractive beams generated by those structures are always perpendicular to the aperture.…”

Section: Introductionmentioning

confidence: 99%

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Phase‐shifted metasurface design for pseudo‐nondiffractive beam deflection

Yang

Chen

et al. 2022

IET Microwaves Antenna & Prop

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A transmission phase-shifted metasurface (PSM) array has been proposed for nondiffractive beam deflection. A PSM element consists of two identical semicircular rings and an I-shaped structure, which is symmetrically printed on both sides of the F4B substrate. According to the geometric optics, the phase distribution on the metasurface can be obtained. To achieve the desired phase distribution, the metasurface elements rotated at different angles are rearranged, since the phase of the transmitted wave is manipulated by rotating the metasurface element. Then, the standard horn is used to produce the sphere wave across the proposed metasurface array for the non-diffractive beam deflection. Simulated (measured) results show that the inclined non-diffractive beam can be generated at a tilted angle of 35°(34.9°) with a maximum non-diffractive distance of 100 mm (97.5 mm) at 10 GHz. The proposed metasurface array has the advantages of nondiffractive beam deflection, low sidelobes and miniaturisation.

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Section: Performance Of Transmission Phase-shifted Metasurface Arraymentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

“…Recently, the non‐diffractive beams at arbitrary tilted angle have been generated [11–13]. In 13, Cheng et al.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Phase‐shifted metasurface design for pseudo‐nondiffractive beam deflection

Yang

Chen

et al. 2022

IET Microwaves Antenna & Prop

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“…Among the very few designs which control the propagation direction and depth‐of‐field of inclined Bessel beam, a novel transmitting‐type metasurface is proposed by employing phase‐shift surface. [ 23 ] Nevertheless, this metasurface is difficult to simultaneously realize two or more beams with orthogonal polarization for multiplexing. In addition, being similar with conventional transmitting arrays, it suffers high profile and potential misalignment, since the bulky feeding horn and metasurface are separately located.…”

Section: Figurementioning

confidence: 99%

Tensor Holographic Metasurface Using Addition Theory to Independently Manipulate Orthogonally Polarized Bessel Beams

Shen

Xue

Yang

et al. 2021

Adv Materials Technologies

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A tensor holographic metasurface is proposed, to independently manipulate nondiffractive beams with orthogonal polarization and flexible propagation direction. To theoretically analyze the proposed topology, addition theory is developed to modulate surface impedance using tensor cells. Moreover, a polynomial formula is derived to express the equivalent surface impedance of tensor unit cells for pattern generation. To validate this concept, a tensor holographic metasurface is designed, fabricated, and measured. The well‐matched simulation and measurement results show that, for the first time, the proposed holographic metasurface with tensor unit‐cells, simultaneously generates two Bessel beams, not only with orthogonal polarization, but also with expected propagation direction rather than fixed along the broadside. Moreover, the proposed topology is promising to manipulate multiple beams not limited to two Bessel beams.

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Bessel‐Beam Antennas

Comite

Fuscaldo

Burghignoli

et al. 2021

Wiley Encyclopedia of Electrical and Electronics Engineering

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The capability of controlling the spatial broadening of the radiation moving away from the relevant sources is considered a very attractive feature for a plethora of applications, such as imaging, diagnostic, and wireless power transfer. An important class of ideal solutions of the scalar wave equation that remain confined and do not undergo diffracting spreading are the so‐called Bessel beams.In the past few decades, several techniques have been proposed to design zeroth‐ and higher order Bessel beams, all based on the scalar wave theory.More recently, a significant amount of research activity has been devoted to design devices and techniques for the generation of Bessel beams at lower frequencies, thus based on conventional vector solutions of Maxwell's equation. A comprehensive review of the most representative approaches constitutes the main goal of this article.

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Wideband Quasi-Nondiffraction Beam With Accurately Controllable Propagating Angle and Depth-of-Field

Cited by 42 publications

References 27 publications

Phase‐shifted metasurface design for pseudo‐nondiffractive beam deflection

Phase‐shifted metasurface design for pseudo‐nondiffractive beam deflection

Tensor Holographic Metasurface Using Addition Theory to Independently Manipulate Orthogonally Polarized Bessel Beams

Bessel‐Beam Antennas

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