An angle-insensitive electromagnetic absorber enabling a wideband absorption

Ni Flower/MXene-Melamine Foam Derived 3D Magnetic/Conductive Networks for Ultra-Efficient Microwave Absorption and Infrared Stealth

“…Accordingly, the demand for EM wave absorbing materials has become increasingly urgent. Although there are many traditional EM waves absorbing materials, most of them do not meet the requirements of lightweight, thin matching thickness, wide effective absorption bandwidth (EAB), and strong absorption capacity [5][6][7][8][9]. Therefore, how to effectively absorb EM radiation and meet the requirements of EM wave absorbing materials has attracted widespread attention.…”

Patternable Nanocellulose/Ti3C2Tx Flexible Films with Tunable Photoresponsive and Electromagnetic Interference Shielding Performances

“…The ubiquitous use of electronic equipment led to an increase in electromagnetic radiation, and the EMI shielding performance of the device was one aspect of evaluating their safety and sustainability. , The EMI shielding performance of assembled devices with the functional TOCN/Ti 3 C 2 T x film was measured by a vector network analyzer in a microwave frequency range of 8.2–12.4 GHz in the X-band. The SE T value was positively correlated with the electromagnetic wave propagating through the shielding material, which resulted from reflection (SE R ) and absorption (SE A ) mechanisms .…”

Wood-Derived Porous Carbon/Iron Oxide Nanoparticle Composites for Enhanced Electromagnetic Interference Shielding

“…Such a difference is related to the high-ordered porous structures of PC substrates. When the EM energy propagates into the porous structures, a multiple reflection behavior could be activated to improve the attenuation performance. , However, when the EM energy propagates in the axial direction, it could be reflected at once due to the high electric conductivity of PC, reducing the attenuation effects of the anisotropic microstructures. , The SE R and SE A values at the axial orientation have been calculated (Figure D). The original PC contained the lowest values in both SE R and SE A , demonstrating a relatively poor shielding performance.…”

“…25,33 However, when the EM energy propagates in the axial direction, it could be reflected at once due to the high electric conductivity of PC, reducing the attenuation effects of the anisotropic microstructures. 56,57 The SE R and SE A values at the axial orientation have been calculated (Figure 4D). The original PC contained the lowest values in both SE R and SE A , demonstrating a relatively poor shielding performance.…”