Wen Kaihuai, Han Tiancheng, Lu Haipeng, Luo Wei, Zhang Linbo, Chen Haiyan, Liang Difei, Deng Longjiang
Opt Express. 2021 Mar 15;29(6):8872-8879. doi: 10.1364/OE.418575.
We propose a radar-infrared bi-stealth rasorber that not only provides broad microwave absorptivity and low infrared emissivity but also possesses a microwave transmission window at low frequency. It is composed of three functional layers, which are carefully designed to independently control the infrared emission, microwave absorption, and transmission, respectively. The structure exhibits broadband (8.1-19.3 GHz) and high-efficiency (>90%) absorption. A transmission window appears at low frequency with a transmission peak of 80% at 2.68 GHz. The thermal emissivity of the structure is about 0.27 in the atmosphere window, which is close to that of metal. Moreover, the total thickness of the proposed structure is only 3.713 mm. The low-infrared-emissivity, high-microwave-absorption and frequency-selective-transmission properties promise it will find potential applications in various stealth fields.
我们提出了一种雷达-红外双隐身吸波器，它不仅具有宽频带微波吸收能力和低红外发射率，还在低频处拥有一个微波传输窗口。它由三个功能层组成，这三个功能层经过精心设计，分别独立控制红外发射、微波吸收和传输。该结构展现出宽带（8.1 - 19.3 GHz）和高效（>90%）吸收特性。在低频处出现一个传输窗口，在2.68 GHz时传输峰值为80%。该结构在大气窗口的热发射率约为0.27，与金属相近。此外，所提出结构的总厚度仅为3.713 mm。低红外发射率、高微波吸收和频率选择性传输特性使其有望在各种隐身领域找到潜在应用。
