Microstrip antenna gain enhancement with metamaterial radome

Attachi, S.; Saleh, Chaker Mohsen; Bouzouad, Mouloud

doi:10.1007/s00339-016-0641-3

Cited by 11 publications

(2 citation statements)

References 11 publications

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“…In [11] and [12] an controllable MTM unit cell with two different behaviors was stacked and then used as a controllable lens capable of increasing the gain of the antenna and rotating the main lobe of its radiation pattern. In [13], multiple layers of controllable MTM unit cells were applied in front of a patch antenna to improve its characteristics and make it agile in frequency. In this work, we design a digital programmable metamaterial for radar cross section reduction.…”

Section: Introductionmentioning

confidence: 99%

Radar cross-section reduction using digital programmable metamaterials

Bouras,

Labiad,

Bouzouad

2023

Preprint

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This paper presents radar cross-section reduction using a digital programmable metamaterials (MTM). The proposed structure is composed of agile unit cells with two different behaviors that can be controlled using an external command system, such as PIN installed in every unit cell. When the diode states are swapped, two types of unit cells are produced. The ON-state is for the absorber type with an absorption rate of 96%, and 180-phase of reflection, and the OFF-state is for the reflector type MTM unit cell with zero-phase reflection. A field-programmable gate array (FPGA) is used to supply binary codes (0/1) to control the diode states (ON/OFF) of the MTM unit cell, and the structure becomes completely coded. By combining these two types in the same structure, we were able to obtain a MTM supercell that can switch between five prototypes (sequences) in which the unit cells are symmetrical, and each prototype has its own working frequency.

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Section: Introductionmentioning

confidence: 99%

Radar cross-section reduction using digital programmable metamaterials

Bouras,

Labiad,

Bouzouad

2023

Preprint

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“…Several kinds of infrared spectral selective materials, such as coreshell composites, nanocom posite films and multilayered structures, have been developed to lower infrared emissivity at the atmospheric window of 3-5 µm and 8-14 µm [9][10][11]. Traditional materials for reducing the radar cross section during the transmission process mainly use frequency selective surfaces (FSSs), Eglass/epoxy and quartz/epoxy [12,13]. However, with the rapid development of detection technology, single spectral selection has been far from able to meet the practical needs.…”

Section: Introductionmentioning

confidence: 99%

Multi-layer composite structure covered polytetrafluoroethylene for visible-infrared-radar spectral Compatibility

Dong

Cheng

Wang

et al. 2017

J. Phys. D: Appl. Phys.

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In this paper, a polytetrafluoroethylene (PTFE) top-covered multi-layer composite structure PTFE/Hs/(Ge/ZnS)3 (Hs represents the surface layer ZnS with various thicknesses) for spectral compatibility is proposed and investigated theoretically and experimentally. A substantial decline of glossiness from over 200 Gs to 74.2 Gs could be realized, due to high roughness and interface reflection of the 800 nm PTFE protection layer. In addition, similar to the structure of Hs/(Ge/ZnS)3, the designed structure with a certain color exhibits ultra-low emissivity of average 0.196 at 8–14 µm and highly transparent performance of 96.45% in the radar frequency range of 2–18 GHz. Our design will provide an important reference for the practical applications of the spectral compatible multilayer films.

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Liquid metamaterial based radome design

Patel

Kosta

Charola

2018

Micro & Optical Tech Letters

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We present liquid metamaterial based radome design. Radome is a layer used to protect antenna from weather disturbances. The addition of this layer reduces the gain of antenna. Our aim here is to improve this gain. Liquid metamaterial based radome presented in the manuscript improves the gain performance of antenna. The designed liquid metamaterial radome structure is applied to patch antenna for its performance observation. Antenna design with and without liquid metamaterial radome is tested in this manuscript. The design results in the form of return loss, bandwidth and gain are measured and compared. From the comparison, it is evident that the design with liquid metamaterial radome improves the gain of the antenna. The designed antenna with metamaterial liquid radome is applicable in narrowband sensitive radar antenna applications.

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Microstrip antenna gain enhancement with metamaterial radome

Cited by 11 publications

References 11 publications

Radar cross-section reduction using digital programmable metamaterials

Radar cross-section reduction using digital programmable metamaterials

Multi-layer composite structure covered polytetrafluoroethylene for visible-infrared-radar spectral Compatibility

Liquid metamaterial based radome design

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