نتایج جستجو برای: dual band

تعداد نتایج: 285181  

Journal: :Optics letters 2011
Miguel Navarro-Cía Carlos García-Meca Miguel Beruete Alejandro Martínez Mario Sorolla

An effective negative refractive index (NRI) is demonstrated and experimentally verified for the first two propagation bands of a fishnet-like metamaterial at millimeter-wave frequencies. The dual-band NRI behavior is achieved by engineering the diffraction order (±1, ±1) associated with the internal mode supported between holey layers to correspond with the second propagation band. In addition...

Journal: :JURNAL INFOTEL - Informatika Telekomunikasi Elektronika 2016

Journal: :Nigerian Journal of Technology 2022

This paper presents a single-element microstrip spade-shaped patch antennas with partial ground plane, integrated an electromagnetic band-gap (EBG) structure, and fed feedline to achieve wideband, dual-band band-notched characteristic. Two similar mushroom-like EBG structures built into the wideband antenna were used suppress specific band, resulting in dual-band. The wide-band achieved broad b...

Journal: :Advances in Electrical and Computer Engineering 2012

Journal: :Indonesian Journal of Electrical Engineering and Computer Science 2019

Journal: :Progress In Electromagnetics Research 2012

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