Results 31 to 40 of about 260 (157)
Linear and nonlinear filters under high power microwave conditions [PDF]
The development of protection circuits against a variety of electromagnetic disturbances is important to assure the immunity of an electronic system. In this paper the behavior of linear and nonlinear filters is measured and simulated with high power ...
F. Brauer, J. L. ter Haseborg
doaj
Experimental study of destructive effects on materials with different energy electron bombardment
In the study of breakdown in high power microwave (HPM) devices, researchers pay attention to the plasma effects caused by material ablation under electron bombardment.
Nongchao Tan +5 more
doaj +1 more source
ABSTRACT With the rapid proliferation of unmanned aerial vehicles (UAVs) in the military, logistics and public safety sectors, the threat of illegal intrusion, information theft, and security breaches has increased. This paper provides a comprehensive review of recent developments in counter‐unmanned aerial vehicle (counter‐UAV) systems, focussing on ...
Lei Xing, Can Cui, Miao Wang, Chao Xu
wiley +1 more source
A K‐Band Dual‐Polarised Hetero‐Integrated Quasi‐Planar Transverse Electromagnetic Antenna
In this article, a design of the dual linear‐polarised/dual circular‐polarised transverse electromagnetic (TEM) antenna is presented, which is designed to operate in K‐band (18–19.5 GHz). The Quasi‐TEM wave is achieved by the low‐profile metallic stepped horn antennas and the planar multilayer feeding structure. The cross‐shaped slot and the multilayer
Yifang Wei, Jiasheng Hong, Jianpeng Wang
wiley +1 more source
Blocking Interference Mechanism in Networked Radios Under UWB HPM
This paper conducts a systematic cross‐level analysis of the damage mechanism encompassing ‘electromagnetic interference–hardware impairment–communication performance’ for QPSK‐based networked radios. Using ultra‐wide spectrum pulse signals as the interference source, the study considers the scenario where electromagnetic interference causes damage to ...
Jiale Zhou +6 more
wiley +1 more source
Effects of input voltage rise time on the performance of magnetron with diffraction output
High Power Microwave (HPM) usually refers to sources with output power higher than 300 MW, and the approach to achieve such high output power is related to the use of pulsed power (PP) technology, which stores energy over a relatively long time and ...
Shen Shou Max Chung
doaj +1 more source
Laver (Porphyra haitanensis) is a nutritious seaweed. Desiccation affects its quality and flavor, but the molecular changes during drying are unclear. Here, the effects of hot air drying temperatures (60°C, 70°C, 80°C, 90°C, and 100°C) on rehydration performance, drying kinetics, microstructure, and the biological activity of laver were evaluated.
Hui Huang +8 more
wiley +1 more source
This study evaluated the extraction efficiency, composition, and techno‐functional properties of bambara groundnut protein (BGP) obtained using enzyme‐assisted (EAE), ultrasonic‐assisted (UAE), and microwave‐assisted extraction (MAE) methods, compared to conventional alkaline extraction (CE).
Paul Ndubuisi Anyiam +7 more
wiley +1 more source
Shielding effectiveness (SE) dominates the shielding performance of materials. Under the excitation of high-intensity transient electromagnetic pulse, especially the wide-band transient electromagnetic pulse, how to characterize and calculate the SE of ...
Zhiyang Yan +4 more
doaj +1 more source
Enhancing Vircator Efficiency Using Tapered Reflectors With Increasing Interreflector Distance
The effectiveness of virtual cathode oscillator (Vircator) applications has been restricted due to the low efficiency in converting the electron beam to microwave. This research introduces the design of an axial Vircator that achieves higher power output by using reflectors in the drift area.
Khuban Lateef Khan +5 more
wiley +1 more source

