A symmetric dual-ring cross stub based dual-band THz metamaterial absorber design for permittivity sensing applications

This paper presents a novel dual-band terahertz (THz) metamaterial absorber based on a symmetric dual-ring cross-stub (SDR-CS) resonator, designed for high-sensitivity permittivity sensing. The absorber, composed of aluminum resonators and a polyamide substrate, features a compact unit cell of 80 ×...

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Main Authors:	Alqurashi, Ahmed, Al Gburi, Ahmed Jamal Abdullah, Khanam, Sayeeda, Zafar, Esam Y.O.
Format:	Article
Language:	en
Published:	Elsevier B.V. 2025
Online Access:	http://eprints.utem.edu.my/id/eprint/29580/2/02702261120251158312569.pdf http://eprints.utem.edu.my/id/eprint/29580/ https://pdf.sciencedirectassets.com/778126/1-s2.0-S2666950125X00031/1-s2.0-S2666950125001452/main.pdf?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEOv%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJHMEUCIQDHH0cTOz2PqMuG0wNAapBPGYsdkZWWlE6DEsoMQDWWrQIgLlP5kwEsYXVwR1QgKxmMrNoiuCxE0BXcq%2Bp%2FwZcixAYqvAUIs%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwwNTkwMDM1NDY4NjUiDIpmsCtexwMCYnu1KSqQBSShGqt4zKmJLXMRByOOhuYebBF521MAlQK6y3sWpHbO0WcFouU4v%2Fhycdk5RBt2FXAeWH%2Boxw1Gz2weYyc4yonLSREt0dhN7lvnSpuogxRFUdAGvH8IA42%2FUQXdjBWRfmsOCcTPGSQ%2Fjc93bFv34M4ERSOAyPgWLDgyTpmzujgsm%2BNbgGYyls7lKn4X88u9XCYPgmrRENGiioino9HOJScWSyOfCPkYY966PgAkUX93nnGQVu6z2RQDPpkcN4uXxr2OZsUifdmlVwnBfFfDs2Bawd6O37xlR1sleTDhdfVssIECpCgrEWLEFtNFoNH2BLsr89dYy2L4aQCVsnzB6rDzFKJtw01H%2BosIJhlKbISj0N7Zuh2tktVrzKThPa45txXvyOIv5Ul1MAr7Ge5pEIuU%2Fh0rEIMqDI65P%2BxZ%2BN%2FQ3PkjiryIFlzpXU08P3rhoDeembUg54ps5hEVGTK%2Fu%2Fxmks96oHWNBnCWINVObDCTFu4bFuy8Tn%2BrDPFE9IFt5qIyno3JmWPhLl%2B4V49%2BfFxNxyN5Nl1KCNNSrlYvnSXQ0XdvDrDwBWDmntiuiwrJIPdIQjhnPGHA64ORi%2B9HsuOXf7WxBrhAgBMv5Ux%2BpnXzdYWRtUqLlkhoHwVJARAFoiE%2FmgJBcD0qoiBbyd7LOIeE22H5dvUF6ykKxbTjDAfCcPV0%2B60RWItFgUCZhRxEp7dVBMc0KmOioImYQsIfc%2Bg8H0dmr87c0u1cyGalvgXkCcNkhbnzdldQ7jsG%2B4CNKXPVaza94UIK4h0DqXJZkQklA8NC9KTbpv1yIiSEIPl%2Fnk2MmeJD57r9C25I3FfBCtxe3i2bhok6MH0ZiLHhDYjt18RQ9FNEPumCIPf4mHHkMO%2FLr8wGOrEBFxgRG0J0L8GncoRiVyu2NWFvXK252KM57zIQazDD7KrlwFGl1UXEuXj2D%2FFviCkxuyhg5z5RhUhmccQmomJgxPGmPUWPfbyqy4cPCsFPh%2Fspi4DV8MXGuG1IVvyeSkBY3Qaoa1mnFmeBZ%2FKAGm9NTJP%2F14W4cQWTpiMC2zFuvlwxjgQH52cYtC%2F0d%2BtzxVz86SKGml6vKGbta6Xf%2FlEU%2B1S%2BNoNrR69ivRa2FifDSq6x&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20260211T030743Z&X-Amz-SignedHeaders=host&X-Amz-Expires=300&X-Amz-Credential=ASIAQ3PHCVTY5N7SMOPR%2F20260211%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=874a9a7a2b73eaaa48b821749f68dbe7d0795ec9ec68ce1a8f69e45f49eafb30&hash=5634f63e6727b30adff7b3eeedb2a2733fd0750de44676c0d31fb6b69d76b3e0&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&pii=S2666950125001452&tid=spdf-d47306dd-67ee-497e-9919-09c604b6c050&sid=0503f635863889483e18bc8-80a623e13aa4gxrqb&type=client&tsoh=d3d3LnNjaWVuY2VkaXJlY3QuY29t&rh=d3d3LnNjaWVuY2VkaXJlY3QuY29t&ua=091e57050153005d50&rr=9cc0a33a49d7fc5d&cc=my https://doi.org/10.1016/j.rio.2025.100917
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