A wide inter-absorption dual-transmission dual-polarized frequency selective rasorber based on SRRs

IF 0.6 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Electromagnetics Pub Date : 2022-07-04 DOI:10.1080/02726343.2022.2118428

G. Sen, Aditi Sharma, Saptarshi Ghosh, Santanu Das

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引用次数: 1

Abstract

ABSTRACT In this letter, a dual-polarized dual-transmission frequency selective rasorber (FSR) geometry is demonstrated. The top layer of the FSR is built of a cross-dipole design loaded with chip resistors for obtaining a wideband absorption. In addition, two different split ring resonator patterns are printed at each side of the substrate connected by metallized vias to achieve two in-band transmission responses. The bottom layer is designed from a slot geometry to exhibit two transmission bands similar to that of the top layer. The overall FSR structure exhibits a −10 dB reflection response ranging from 2.0 GHz to 8.15 GHz (having a fractional bandwidth of 121%), with transmission peaks appearing at 4.2 GHz and 6.2 GHz having insertion losses of 2.3 dB and 2.9 dB, respectively. The unit cell topology is miniaturized with dimensions of 0.1λL×0.1λL, λL being the free space wavelength at the lowest operating frequency. The proposed FSR also satisfies polarization-insensitive characteristic and angular stability behavior for differentmodes. The working principle behind such wideband absorption and in-band transmission phenomena are analyzed and an equivalent circuit model is presented. A prototype of the proposed FSR is manufactured and measured, confirming the simulated responses.

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基于SRRs的宽互吸收双透射双极化选频器

摘要在这封信中，演示了一种双极化双传输频率选择性rasorber（FSR）几何结构。FSR的顶层由装载有芯片电阻器的交叉偶极子设计构建，用于获得宽带吸收。此外，在通过金属化过孔连接的基板的每一侧印刷两个不同的开口环谐振器图案，以实现两个带内传输响应。底层由缝隙几何结构设计，以显示与顶层相似的两个传输带。整个FSR结构表现出−10 dB的反射响应，范围从2.0 GHz到8.15 GHz（具有121%的部分带宽），在4.2 GHz和6.2 GHz处出现的传输峰值的插入损耗分别为2.3 dB和2.9 dB。晶胞拓扑结构被小型化，尺寸为0.1λL×0.1λL，λL是最低工作频率下的自由空间波长。所提出的FSR还满足不同模式下的偏振不敏感特性和角稳定性行为。分析了这种宽带吸收和带内传输现象背后的工作原理，并提出了等效电路模型。制造并测量了所提出的FSR的原型，证实了模拟的响应。

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来源期刊

Electromagnetics 工程技术-工程：电子与电气

CiteScore

1.60

自引率

12.50%

发文量

审稿时长

6 months

期刊介绍： Publishing eight times per year, Electromagnetics offers refereed papers that span the entire broad field of electromagnetics and serves as an exceptional reference source of permanent archival value. Included in this wide ranging scope of materials are developments in electromagnetic theory, high frequency techniques, antennas and randomes, arrays, numerical techniques, scattering and diffraction, materials, and printed circuits. The journal also serves as a forum for deliberations on innovations in the field. Additionally, special issues give more in-depth coverage to topics of immediate importance. All submitted manuscripts are subject to initial appraisal by the Editor, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. Submissions can be made via email or postal mail.