Results 71 to 80 of about 3,502 (339)
Dielectric EBG Leaky-Wave Antenna: Design and Experimental Validation
IEEE Open Journal of Antennas and PropagationThis paper proposes a novel Electromagnetic Band-Gap (EBG) leaky-wave antenna (LWA) operating in the K-band with enhanced directivity at broadside. A rigorous method that combines the analysis of the band diagrams of Bloch waves propagating within two ...
Ludovica Tognolatti +5 more
doaj +1 more source
Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook
Advanced Materials, EarlyView.Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain +5 more
wiley +1 more source
Single-Conductor Strip Leaky-Wave Antenna
, 2020 In this case, the normalized phase constant is very close to 1 and this results in a fixed main-beam radiation pattern in the end-fire direction. This leaky-wave antenna with only a single rectangle stripline of length 110 mm can achieve the same broad ...
Yu-De Lin, Wanchu Hong
core
Beam scanning one-dimensional leaky-wave antenna
, 2022 Although the beam of a leaky-wave antenna (LWA) scans with frequency, steering through the broadside is usually challenging. Various methods have been developed to overcome this limitation.
Karmokar, D.K.
core +1 more source
Realizable Leaky Wave Antenna Based on Spin Photonic Topological Insulators
IEEE AccessThe discovery of topological insulators and their photonic counterparts has led to significant advancements in electromagnetics. These materials offer an innovative way to control electromagnetic fields at the interface of trivial and topological ...
Sayyed Ahmad Abtahi +2 more
doaj +1 more source
Role of the Recombination Zone in Organic Light‐Emitting Devices
Advanced Materials, EarlyView.This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley +1 more source
Electromagnetic inspired acoustic leaky-wave antenna
In this article we make an analogy between Electromagnetic and Acoustic transmission-line modelling. Then we use this to introduce acoustic transmission-line metamaterials and finally we introduce the acoustic leaky-wave antenna on the basis of previous ...
Karkar, Sami +3 more
core +1 more source
Improved Gain Graphene Based Leaky Wave Antenna Loaded by Dielectric Slab in THz Regime [PDF]
, 2019 A sinusoidally modulated graphene microstrip linebased leaky wave antenna that operates in the THz regime ispresented. The dispersion diagram of the unit cell of the antennais obtained by numerical simulation with commercial ...
Ladislau Matekovits +2 more
core
The fundamental of leaky wave antenna
, 2018 The fundamental of leaky-wave antenna (LWAs) that have been compiled and published are presented in this paper. A leaky-wave antenna uses the guiding structural, which support the propagation of waves along the length of the structure.
Nur Asiha Binti Sazali 2
core +2 more sources
n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz
Advanced Materials, EarlyView.Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis +19 more
wiley +1 more source