In-Band Scattering Control of Ultra-Wideband Tightly Coupled Dipole Arrays Based on Polarization-Selective Metamaterial Absorber

Zhang, Zhechen; Huang, Ming; Chen, Yikai; Qu, Shi‐Wei; Hu, Jun; Yang, Shiwen

doi:10.1109/tap.2020.3001446

Cited by 40 publications

(13 citation statements)

References 43 publications

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“…It is hard to determine these two mode fields and their phase difference. Zhang Z et al analysed the scattering field of the phased array based on the scattering matrix representation and predicted the antenna radar cross section (RCS) by comparing the scattering fields under different load conditions [12]. Lu B et al proposed that the scattering field of antennas can be obtained as the product of the element factor and the scattering array factor when neglecting the element mutual coupling and edge effect [13].…”

Section: Introductionmentioning

confidence: 99%

Sub‐array level structural compensation method for radiating and scattering performance of array antennas

Wang,

Yan,

et al. 2023

IET Microwaves Antenna & Prop

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The detection and stealth abilities of array antennas depend mainly on the antennas' radiating and scattering performance, respectively. However, the operating environmental loads and assembly lead to serious structural errors, including deformation and random errors, which affect both the radiating and scattering performance. As the demand to guarantee high performance in detection as well as in stealth, a new sub‐array level structural compensation method is presented to simultaneously guarantee the radiating and scattering performance of array antennas in service. First, a statistical model of scattering performance with structural deformation and random position error is established to quickly evaluate the impact of a random structural error on scattering performance. Then, the effects of structural errors in different directions on radiating and scattering performance are analysed to determine the structural adjustment direction. Moreover, the multi‐objective problem considering the comprehensive compensation of radiating and scattering performance is converted into a single‐object problem by constructing a fitness function to realise the sub‐array level structural compensation. Finally, a typical case is used to verify the effectiveness of the compensation method. The results show that the presented method can guarantee both the radiating and scattering performance effectively, providing advantageous guidance for structural design and performance compensation for array antennas.

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Section: Introductionmentioning

confidence: 99%

Sub‐array level structural compensation method for radiating and scattering performance of array antennas

Wang,

Yan,

et al. 2023

IET Microwaves Antenna & Prop

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“…With the increasing demand for conformal applications and the integration of antennas, strict requirements have been imposed on their size. Reducing the RCS of antennas while maintaining their radiative performance without increasing their size is a challenging task that, however, offers considerable rewards 16–18 . Many technologies developed to this end have limitations in terms of single use such that they cannot maintain the radiative characteristics of the antenna while reducing its RCS and maintaining its overall size 18,19 .…”

Section: Introductionmentioning

confidence: 99%

“…Reducing the RCS of antennas while maintaining their radiative performance without increasing their size is a challenging task that, however, offers considerable rewards. [16][17][18] Many technologies developed to this end have limitations in terms of single use such that they cannot maintain the radiative characteristics of the antenna while reducing its RCS and maintaining its overall size. 18,19 Therefore, it is worth exploring whether the RCS of the antenna can be further reduce through the use of composite technology.…”

mentioning

confidence: 99%

A low RCS microstrip antenna based on a composite technology of slotting and loading split‐rings

Zhang

Yabing²,

Anqi³

et al. 2022

Int J RF Mic Comp-Aid Eng

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This study proposes a method to reduce the wideband radar cross-section (RCS) of a microstrip antenna while maintaining its dimensions. Modifications to the design of the antenna consist of patch slotting, ground slotting, and coplanar split-ring loading without changing its size. The results of simulations show that a significant reduction in the RCS can be obtained in the range of frequency of 1-3 GHz. The maximum in-band RCS and out-of-band RCS are 20.8 and 38 dB, respectively. Prototypes of the reference antenna and the proposed composite antenna are manufactured and tested, and the results are consistent with those of the simulation.

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“…[23][24][25][26] Many intriguing applications based on metasurfaces have been inspired from visible to microwave region, such as flat lenses, [27][28][29] vector beam generations, [30,31] holograms, [32,33] polarization conversions, [34] and communications. [35] In the stealth field, emergence of metasurfaces has significantly promoted the development of the low-scattering technology, and several novel stealth mechanisms, including EM cloaking, [36][37][38] perfect absorbing, [39,40] dynamical camouflage, [41] and EM diffusion, [42][43][44] have been explored. Compared with the traditional MAMs, metasurface technologies bring in substantial advantages for the design of low-scattering materials, such as ultrathin thickness, strong scattering-reduction performance, and multifunctional integration capacity.…”

Section: Introductionmentioning

confidence: 99%

All‐Ceramic Coding Metastructure for High‐Temperature RCS Reduction

et al. 2022

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Metasurfaces provide a new avenue for backscattering reduction due to their strong capability of manipulating electromagnetic wave. However, most of the previously reported low‐scattering metasurfaces are very sensitive to temperature and their performance will be disabled under high‐temperature environment. Herein, an all‐ceramic metastructure is proposed for high‐temperature backscattering reduction at microwave frequencies. Such a metastructure consists of two kinds of refractory ceramics such as Al2O3 and TiB2. The ceramics of Al2O3 adopts two different coding meta‐atoms for generating 1‐bit reflection phase, while the ceramics of TiB2 acts as a metallic reflection plane due to its good electrical conductivity. Wideband radar‐cross‐section (RCS) reduction can be realized with appropriate arrangement of the coding meta‐atoms. Both the simulated and experimental results have demonstrated that the proposed all‐ceramic metastructure can achieve 10 dB RCS reduction over a wide frequency band ranging from 4.9 to 13.1 GHz, and its RCS reduction property is still remained even as the environment temperature is increased to 1000 °C. In addition, it has good angle stability under oblique incidence; good thermal stability is also verified by long‐term temperature test and thermal‐cycling test. This study provides a simple way to construct the low‐scattering material in high‐temperature applications.

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In-Band Scattering Control of Ultra-Wideband Tightly Coupled Dipole Arrays Based on Polarization-Selective Metamaterial Absorber

Cited by 40 publications

References 43 publications

Sub‐array level structural compensation method for radiating and scattering performance of array antennas

Sub‐array level structural compensation method for radiating and scattering performance of array antennas

A low RCS microstrip antenna based on a composite technology of slotting and loading split‐rings

All‐Ceramic Coding Metastructure for High‐Temperature RCS Reduction

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