Journal ArticleDOI
Numerical investigations on radar cross-section of helicopter rotor with varying blade pitch
Zeyang Zhou,Jun Huang +1 more
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TLDR
In this paper , the radar cross-section (RCS) of the rotating rotor at different blade pitches is analyzed for the stealth design of helicopter rotors, and the effects of different control modes on the RCS of the rotor and helicopter are investigated.About:
This article is published in Aerospace Science and Technology.The article was published on 2022-04-01. It has received 3 citations till now. The article focuses on the topics: Helicopter rotor & Radar cross-section.read more
Citations
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Journal ArticleDOI
Auto Sweptback Wing Based on Low Scattering Demand for an Unmanned Aerial Vehicle in Phase Flight
Zeyang Zhou,Jun Huang +1 more
TL;DR: In this article, an auto-sweep scheme based on electromagnetic scattering evaluation and an improved particle swarm optimization algorithm was presented to study the optimal sweepback angle when a UAV exhibits a low radar cross-section (RCS) indicator during phase flight.
Journal ArticleDOI
Quantitative Weight and Two-Particle Search Algorithm to Optimize Aero-Stealth Performance of a Backward Inclined Vertical Tail
Zeyang Zhou,Jun Huang +1 more
TL;DR: In this article , an optimization method based on a quantitative weight coefficient and a two-particle search algorithm is presented to study the influence of the tilt-back design of a vertical tail on its aerodynamic stealth characteristics.
Journal ArticleDOI
Stealth performance evaluation of helicopter against airborne early warning radar considering trimming control
TL;DR: In this paper , the effects of helicopter flight speed, flying direction and operational environment on radar stealth performance are studied in focus, and it is demonstrated by the results that the trimming control does have a great influence of more than 5 dB on the radar cross section of helicopter.
References
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Journal ArticleDOI
A Comprehensive Survey on “Various Decoupling Mechanisms With Focus on Metamaterial and Metasurface Principles Applicable to SAR and MIMO Antenna Systems”
Mohammad Alibakhshikenari,Fatemeh Babaeian,Bal Singh Virdee,Sonia Aissa,Leyre Azpilicueta,Chan H. See,Ayman A. Althuwayb,Isabelle Huynen,Raed A. Abd-Alhameed,Francisco Falcone,Ernesto Limiti +10 more
TL;DR: It is shown that the mutual-coupling reduction methods inspired by MTM and MTS concepts can provide a higher level of isolation between neighbouring radiating elements using easily realizable and cost-effective decoupling configurations that have negligible consequence on the array’s characteristics such as bandwidth, gain and radiation efficiency, and physical footprint.
Journal ArticleDOI
A Comprehensive Survey of “Metamaterial Transmission-Line Based Antennas: Design, Challenges, and Applications”
Mohammad Alibakhshikenari,Bal Singh Virdee,Leyre Azpilicueta,Mohammad Naser-Moghadasi,Mobayode O. Akinsolu,Chan H. See,Bo Liu,Raed A. Abd-Alhameed,Francisco Falcone,Isabelle Huynen,Tayeb A. Denidni,Ernesto Limiti +11 more
TL;DR: A wide overview of key early-stage concepts of metematerial-based designs as a thorough reference for specialist antennas and microwave circuits designers are provided.
Journal ArticleDOI
A review of helicopter rotor blade tip shapes
TL;DR: In this article, a review of rotor blade tip design technology has been carried out with a view to undertaking subsequent computations to evaluate the performance of new tip designs, with the goal to obtain a better understanding of the helicopter tip design problem.
Journal ArticleDOI
Optimum design of a helicopter rotor for low vibration using aeroelastic analysis and response surface methods
TL;DR: In this article, the rotor blade is represented as an elastic cantilever beam undergoing flap and lag bending, elastic torsion and axial deformations, and response surface approximations are constructed for the objective function (vibratory hub loads).
Journal ArticleDOI
A Comprehensive Survey on Antennas On-Chip Based on Metamaterial, Metasurface, and Substrate Integrated Waveguide Principles for Millimeter-Waves and Terahertz Integrated Circuits and Systems
TL;DR: In this paper , the authors provide an overview of recent techniques and technologies investigated in the literature, to implement high performance on-chip antennas for millimeter-wave (mmWave) and terahertz (THz) integrated-circuit (IC) applications.