3D frequency selective rasorber with wide lower absorption band (invited)

Luo, Guo Qing; Yu, Wei Liang; Yu, Yu Feng

doi:10.1109/apcap.2017.8420507

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2020

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“…Therefore, a new ideal radome was proposed to compensate this deficiency, which is nearly transparent at the passband while the wave can be absorbed by the structure out of the passband. This new structure is named as frequencyselective rasorber (FSR) [16]. The word "rasorber" is the combination of "radome" and "absorber", and is a type of radome that functions as an absorber [11].…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Frequency Selective Rasorber Based on Meander-Lines Loaded Lumped Resistors and a Coupled Resonator Spatial Filter

Shen¹,

Kou²,

Yu³

et al. 2020

PIER M

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This paper presents a miniaturized frequency selective rasorber (FSR) with both wide absorption and transmission bands. The proposed FSR consists of a resistive sheet and a band-pass frequency-selective surface (FSS) with non-resonant constituting elements. The unit cell structure of the resistive sheet is a meander line loaded with four lumped resistors, which generate a wide absorption band from 2.4 to 6.2 GHz, while the layer of FSS is coupled resonator spatial filter (CRSF) that generates a wide transmission band from 7.5 to 10.2 GHz. Furthermore, there is a 10.5 mm air spacer between the resistive and FSS layers. The period of the FSR structure, which maintains its passband and absorption band performance, is only 10 mm (0.08λ L). Simulated and measured results are compared and found to show good agreement.

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Section: Introductionmentioning

confidence: 99%