Multiband small zeroth-order metamaterial antenna

Dakhli, Nabil; Choubani, Fethi; David, Jacques

doi:10.1007/s00339-010-6182-2

Cited by 10 publications

(3 citation statements)

References 3 publications

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“…As a fire-new type of tunable anisotropic material, it attracts extensive attention over the superiority of its small size, light weight, low cost, wide application frequency range and easy conformity [4][5][6]. Up to now, LC has been comprehensively employed on tunable phase shifters [7], filters [8], resonators [9], antennas [10] and other microwave devices [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Electronic Beam Steering Metamaterial Antenna with Dual-Tuned Mode of Liquid Crystal Material

et al. 2023

Sensors

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In this study, a dual-tuned mode of liquid crystal (LC) material was proposed and adopted on reconfigurable metamaterial antennas to expand the fixed-frequency beam-steering range. The novel dual-tuned mode of the LC is composed of double LC layers combined with composite right/left-handed (CRLH) transmission line theory. Through a multi-separated metal layer, the double LC layers can be loaded with controllable bias voltage independently. Therefore, the LC material exhibits four extreme states, among which the permittivity of LC can be varied linearly. On the strength of the dual-tuned mode of LC, a CRLH unit cell is elaborately designed on three-layer substrates with balanced dispersion values under arbitrary LC state. Then five CRLH unit cells are cascaded to form an electronically controlled beam-steering CRLH metamaterial antenna on a downlink Ku satellite communication band with dual-tuned characteristics. The simulated results demonstrate that the metamaterial antenna features’ continuous electronic beam-steering capacity from broadside to −35° at 14.4 GHz. Furthermore, the beam-steering properties are implemented in a broad frequency band from 13.8 GHz to 17 GHz, with good impedance matching. The proposed dual-tuned mode can make the regulation of LC material more flexible and enlarge the beam-steering range simultaneously.

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Section: Introductionmentioning

confidence: 99%

Electronic Beam Steering Metamaterial Antenna with Dual-Tuned Mode of Liquid Crystal Material

et al. 2023

Sensors

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“…Studies of metamaterials applications on these devices have shown distinct improvement in performance characteristics, such as increased radiated power or gain [7]- [11], [44], increased efficiency [9], [11]- [13], improved impedance matching [9], [14], minimized losses [15], [16] and increased bandwidth [17]. It is also possible to manipulate and control the directivity of an antenna and, in the case of a receiving antenna system, it is possible to increase the electric field reception [18].…”

mentioning

confidence: 99%

“…11: Important figures-of-merit for the conventional monopole antenna and for the monopole antenna with three different metamaterial covers based, respectively, on omega, single and double SRR cells. The cover is located at a distance d = 4/5 λ0 from the antenna.…”

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confidence: 99%

Design and experimental characterization of a metamaterial-assisted monopole antenna

Lima¹

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Flexible ultra-wideband antenna incorporated with metamaterial structures: multiple notches for chipless RFID application

et al. 2016

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Multiband small zeroth-order metamaterial antenna

Cited by 10 publications

References 3 publications

Electronic Beam Steering Metamaterial Antenna with Dual-Tuned Mode of Liquid Crystal Material

Electronic Beam Steering Metamaterial Antenna with Dual-Tuned Mode of Liquid Crystal Material

Design and experimental characterization of a metamaterial-assisted monopole antenna

Flexible ultra-wideband antenna incorporated with metamaterial structures: multiple notches for chipless RFID application

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