Transmission frequency variable stealth radome using the mutual inductance effect for two frequency selective surfaces

Son, Dae-Sung; Hyun, Jong-Min; Lee, Jung-Ryul

doi:10.1088/1361-665x/ab1928

Cited by 4 publications

(4 citation statements)

References 16 publications

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“…In this manner, undesirable radiation from the antenna can be eliminated to a great extent. Layered MA&S structures are used for the development of stealthy radomes at the higher frequency regime (Son et al 2019).…”

Section: Potential Applications and Future Outlookmentioning

confidence: 99%

Recent advances in thin and broadband layered microwave absorbing and shielding structures for commercial and defense applications

Panwar¹,

Lee²

2019

Funct. Compos. Struct.

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The development of cost-effective, lightweight, wideband microwave absorbing and shielding (MA&S) structures with exotic electromagnetic and mechanical properties is a complex task for academia and industry. The microwave absorption and shielding properties of materials can be significantly improved by the application of layered structures. In this article, an attempt is made to critically analyze and understand the current state of layered MA&S structures and their development directions. This article presents a critical and systematic review of the design and implementation of advanced and diversified layered MA&S structures such as nanocomposite, honeycomb, pyramidal, metamaterial and plasma structures. The objective of this article is to assist in the material and geometry selection process for the development of layered MA&S structures. The theory and operating principle of layered MA&S structures is briefly sketched with attention paid to the electromagnetic mixing models and optimization strategies. This article aims to address various issues associated with such a rapidly expanding field. This article also offers a perspective on the experimental efforts towards the development of efficient layered MA&S structures. This article will be helpful for academicians and scientists dealing with the design and development of electromagnetic structures for distinct practical electromagnetic applications.

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Section: Potential Applications and Future Outlookmentioning

confidence: 99%

Recent advances in thin and broadband layered microwave absorbing and shielding structures for commercial and defense applications

Panwar¹,

Lee²

2019

Funct. Compos. Struct.

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“…Essentially, the FSS functions as a filter, selectively reflecting or transmitting electromagnetic waves in space, providing a shielding function. Owing to its excellent spatial filtering capabilities, FSS finds extensive applications in military target detection and reconnaissance, including uses such as radar cross-section (RCS) reduction [3][4][5][6][7], polarization converters [8,9], filters [10,11] and various other wave modulation devices. One of the most common application of FSS is its usage in radome to reduce the RCS of an antenna system.…”

Section: Introductionmentioning

confidence: 99%

Frequency selective rasorber based on cross bend resonators for wideband transmission and absorption

Li,

Wang,

Wang

et al. 2024

J. Phys. D: Appl. Phys.

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The wideband absorption and transmission of frequency-selective rasorber (FSR) remain a persistent challenge in the application of radar devices. In this article, a novel high performance wideband FSR design based on cross bend resonators (CBR) was proposed. The FSR consists of an upper absorption lossy layer, which offers broad absorption and transmission bands, and a lower bandpass frequency-selective surface (FSS) that enables a highly selective transmission of incident electromagnetic wave. Full wave simulation results showed that this novel design achieves an absorption bandwidth of 83.7% with more than 90% absorptivity in the frequency range of 5.2-12.7 GHz. Furthermore, the passband's fractional bandwidth (FBW) for the insertion loss (IL) less than -3 dB is 33.9%, ranging from 14.9 to 21 GHz, with the minimum IL recorded at 0.69 dB at 17.7 GHz. To further verify the proposed method, a prototype FSR with 10×10 units of 120 mm×120 mm was fabricated and the performance of the FSR was tested. The experiment results were in good agreement with the simulated results, and it showed a significant monostatic radar cross-section (RCS) reduction in the frequency range of 5.3 GHz to 18.3 GHz compared with a metallic plane of the same size.

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“…polarization converters [10][11][12][13], absorbers [14][15][16][17], antennas [18][19][20][21] and radomes [20,[22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Intelligent electromagnetic mapping via physics driven and neural networks on frequency selective surfaces

Miao

Zhang

Zhou

et al. 2023

J. Phys. D: Appl. Phys.

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The high mapping efficiency between various structures and electromagnetic (EM) properties on frequency selective surfaces (FSSs) is the state-of-the-art in EM community. The most straightforward approaches for beams analysis depend on the measurements and conventional EM calculation methods, which are inefficient and time-consuming. Equivalent circuit model (ECM) with excellent intuitiveness and simplicity is put forward extensively. Despite of several applications, the bottlenecks of ECM still exist, i.e., the application scope is restricted in narrow band and specific structure, which is triggered by the ignorance of EM nonlinear coupling. In this work, a lightweight physic model based on neural network (ECM-NN) is proposed for the first time, which exhibits a great physical interpretability and spatial generalization ability. The nonlinear mapping relationship between structures and beams behaviors is interpreted by corresponding simulations. Specially, two deep parametric factors obtained by multi-layer perceptron (MLP) network are introduced to serve as the core of lightweight strategy and compensate for the absence of nonlinearity. Experimental results of single square loop (SL) and double SL indicate that compared with related works, better agreements of the frequency responses and resonant frequencies are achieved by ECM-NN in broadband (0-30 GHz) as well as oblique incident angles (0-60°). The average accuracy of mapping is higher than 98.6%. The discoveries of this work provide a novel strategy for further studies of complex FSSs.

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Transmission frequency variable stealth radome using the mutual inductance effect for two frequency selective surfaces

Cited by 4 publications

References 16 publications

Recent advances in thin and broadband layered microwave absorbing and shielding structures for commercial and defense applications

Recent advances in thin and broadband layered microwave absorbing and shielding structures for commercial and defense applications

Frequency selective rasorber based on cross bend resonators for wideband transmission and absorption

Intelligent electromagnetic mapping via physics driven and neural networks on frequency selective surfaces

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