Results 11 to 20 of about 6,007 (164)
Research on the Theory of Optical Transmission for Bragg Fiber With High-Index-Core
Frontiers in Physics, 2020 The paper analyzes the two theories of conducted light signal for Bragg fiber with high-index core, namely total internal reflection and photonic bandgap.
Daojun Liu, Ji Zhang
doaj +1 more source
Reduced sized cells for electromagnetic bandgap structures [PDF]
Electronics Letters, 2003 Electromagnetic bandgap structures of simple squares are compared to convoluted and interleaved elements to reduce bandgap frequency for fixed periodicity. A reduction of`42% in bandgap frequency is obtained for one (Hilbert) convolution.
Tse, S. +3 more
openaire +1 more source
An Overview of Electromagnetic Band-Gap Integrated Wearable Antennas
IEEE Access, 2020 The recent advancement in the wireless technology has led to the advent of wearable antennas. These antennas are utilized for Wireless Body Area Networks (WBANs) purposes such as health-care, military sportive activities and identification systems ...
Adel Y. I. Ashyap +8 more
doaj +1 more source
Bandstop Filter Synthesis Scheme for Reactively Loaded Microstrip Line Based 1-D Periodic Structures
IEEE Access, 2020 A 1-D finite electromagnetic bandgap (EBG) periodic structure is studied. In the structure, EBG behaviour arises from a unit cell comprised of a metallic patch sandwiched between microstrip line and ground plane.
Irfan Shahid +3 more
doaj +1 more source
UWB Notch Antennas in MIMO System with High Isolation Performance [PDF]
Radioengineering, 2021 This article presents a detailed analysis and design of an ultra-wideband (3.1 GHz – 10.6 GHz) notch antennas in a two-element MIMO system with high isolation performance.
D. Z. Nazif +3 more
doaj
Compact High Q Configurable Quint-Band Electromagnetic Bandgap Filter
IEEE Access, 2018 A compact quint-band bandpass filter using an electromagnetic bandgap (EBG) material is proposed. To the best of authors' knowledge, this is the first quint-band filter using the EBG material.
Yu Guo +3 more
doaj +1 more source
Mutual Coupling Reduction in Phased Array Antennas Applying High-Impedance Surface at X Band
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2020 This paper presents a microstrip phased array using High Impedance Surface - Electromagnetic Bandgap (HIS-EBG) in order to minimize the effects of mutual coupling among the antenna elements.
José Bruno O. de Araújo +6 more
doaj +1 more source
Switchable Electromagnetic Bandgap Surface Wave Antenna
International Journal of Antennas and Propagation, 2014 This paper presents a novel switchable electromagnetic bandgap surface wave antenna that can support both a surface wave and normal mode radiation for communications at 2.45 GHz.
Qiang Bai +2 more
doaj +1 more source
Micromachines, 2023 This article provides a comprehensive review of wide and ultrawide bandgap power electronic semiconductor devices, comparing silicon (Si), silicon carbide (SiC), gallium nitride (GaN), and the emerging device diamond technology.
S M Sajjad Hossain Rafin +5 more
doaj +1 more source
Bandgap Control of Two-Dimensional Coaxial Bragg Structures With Helically Corrugated Conductors
IEEE Access, 2020 The untunable bandgap is a difficult problem for Bragg structures constructed from corrugated metallic waveguides, and becomes a major barrier for applications.
Ying-Xin Lai +4 more
doaj +1 more source