A Cross-Shaped 2-D Periodic Leaky-Wave Antenna

Sengupta, Sohini; Jackson, David R.; Almutawa, Ahmad T.; Kazemi, Hamidreza; Capolino, Filippo; Long, Stuart A.

doi:10.1109/tap.2019.2948524

Cited by 11 publications

(4 citation statements)

References 26 publications

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“…Increasing the cells' period results in the excitation of higherorder Floquet modes. As a result, a PLWA can scan from backward endfire to forward endfire [1]− [5], [55]− [57]. This is one of the main advantages of a PLWA.…”

Section: Leaky-wave Antennamentioning

confidence: 99%

A Review of Reconfigurable Leaky-Wave Antennas

et al. 2021

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A comprehensive survey of the reconfigurable leaky-wave antennas (LWAs) is made in this paper. Beam-steering and unique radiating features of LWA are highlighted particularly. Therefore, radiation mechanism of different types of LWA, including uniform, quasi-uniform, periodic, and metamaterial LWAs are discussed in detail. The guiding structures for realizing LWAs, namely microstrip, waveguide, substrate integrated waveguide (SIW), and half-mode SIW (HMSIW) are investigated as well. Basic concepts of electronic beam-scanning LWAs are also introduced, and several state-of-the-art reconfigurable LWAs are studied thoroughly. The investigated reconfigurable LWAs are suitable for beam-scanning applications due to their compactness, ease of implementation, reasonably high gain, and relatively wide beam-scanning range, as will be demonstrated through this comprehensive review.

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Section: Leaky-wave Antennamentioning

confidence: 99%

A Review of Reconfigurable Leaky-Wave Antennas

et al. 2021

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“…The operation of the periodic structure can be completely characterized by its first repetition of the phase shift, known as the first Brillouin zone [6], [7]. In the microwave regime, great research effort has been devoted to studying the dispersion properties of 2D periodic structures, which are further applied to the designs of transmit/reflect arrays, frequency-selective surfaces, slow wave structures, etc [11], [12], [13], [14]. Although the fruitful qualitative dispersion properties provided by the introduction of higher symmetries in periodic structures were reported a few decades ago [15], [16], it has been in recent years that these higher symmetries have been exploited in microwave applications.…”

Section: Introductionmentioning

confidence: 99%

Dispersion Analysis of Metasurfaces With Hexagonal Lattices With Higher Symmetries

Yang,

Zetterstrom,

Mesa

et al. 2023

IEEE J. Microw.

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This article investigates the dispersion properties of metasurfaces with hexagonal lattices, including potential higher symmetric configurations. We explore the relationships between the periodicity of hexagonal lattices and their dispersion properties, paying special attention to how hexagonal periodic structures can be analyzed with either a hexagonal primitive unit cell or a rectangular supercell. We also study the possibility of introducing higher symmetries into hexagonal periodic structures, including glide symmetry and mirrored half-turn symmetry. To complement and validate the analysis, we designed a graded-index Luneburg lens antenna with a dielectric-filled hexagonal holey structure working in the K a -band. The antenna generates steerable highly directive beams from 26 GHz to 30 GHz, which corroborates our analysis. Our findings provide valuable insight into the dispersion properties of hexagonal-lattice metasurfaces and demonstrate the feasibility of using such structures in practical applications.

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“…Leaky-wave antennas (LWAs) have been investigated in the past decades for their low profile, simplicity in feeding network, and 1-D scanning capibility [4][5][6][7]. To realize 2-D beam scanning, some successful antenna designs have been published [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A W‐band long‐slot array antenna with two‐dimensional beam‐scanning capability

Ma,

Xu,

Deng

et al. 2023

IET Microwaves Antenna & Prop

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A low‐cost W‐band leaky‐wave antenna with two‐dimensional scanning capability is presented. By using the low‐loss transversal long‐slot array structure with a single‐layer parabolic reflector, the antenna realizes a passband from 85 to 102.8 GHz with Voltage Standing Wave Ratio <2. This antenna has a backward radiation direction, which changes with frequency in one dimension, and with the feeding wave front direction in the other dimension. The maximum sidelobe is measured to be −14.2 dB, 5 dB lower compared to the previous‐published longitudinal long‐slot array. A low‐cost, low‐loss, low‐profile design is provided for W‐band 2‐D beam scanning, with backward scanning capability, which is easy to fabricate and could be used for high‐solution sensing and point‐to‐point communications.

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A Cross-Shaped 2-D Periodic Leaky-Wave Antenna

Cited by 11 publications

References 26 publications

A Review of Reconfigurable Leaky-Wave Antennas

A Review of Reconfigurable Leaky-Wave Antennas

Dispersion Analysis of Metasurfaces With Hexagonal Lattices With Higher Symmetries

A W‐band long‐slot array antenna with two‐dimensional beam‐scanning capability

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