Proceedings ArticleDOI
Design and simulation of an ultra-wideband parabolic antenna with three-source based on time reversal method
Ju Feng,Cheng Liao,Xuan Zheng,Ling-Lu Chen,Haijing Zhou +4 more
- Vol. 1, pp 433-437
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TLDR
In this article, a novel application of the time reversal technique for multi-source reflector antenna design is proposed, where the focus of a shaped reflector and the time sequence of its feeds can be determined by time reversal method, exploiting its spatial-temporal focusing property.Abstract:
A novel application of the time reversal technique for multi-source reflector antenna design is proposed in this paper. The focus of a shaped reflector and the time sequence of its feeds can be determined by time reversal method, exploiting its spatial-temporal focusing property. Then a designed three-source parabolic antenna was simulated by the FDTD. The radiation properties show that the designed antenna can lead higher peak value of electric field which is 238% compared to a standard parabolic antenna with one-source and same aperture. It means time reversal method for designing multi-source antenna is effective, and can realize the spatial power combination in the far field.read more
Citations
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Journal ArticleDOI
Experimental and numerical analysis of a parabolic reflector with a radiant heat source
Eun-Ho Lee,Dong-Yol Yang +1 more
TL;DR: In this paper, a numerical model for the simulation of the parabolic reflectors was proposed and the results of finite element simulation using the proposed model were compared with the experimental results.
Journal ArticleDOI
Design and Analysis of Infrared Heating with Overlapping Heater Array Scheme for Industrial Application
Eun-Ho Lee,Dong-Yol Yang +1 more
TL;DR: In this paper, a recently developed infrared (IR) local heating method was used to reduce the springback of high strength steel in manufacturing processes of car chassis, which was shown to be fairly effective.
Journal Article
Design and simulation of a wide-beam ultra-wideband paraboloidal antenna with dual-source
TL;DR: In this article, a paraboloid was improved from an original paraboliod, which was separated in the middle and the two parts were comected by a metallic plate, and the improved planar TEM horn antenna was adopted as the source, and it is fed by the coaxial-cable vertically.
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Research on Combined Efficiency of Spatial Power-combining Technique
TL;DR: In this paper, the authors introduced the spatial power-combining technique and analyzed the main factors affecting the combined efficiency, the efficiency of the AWGN environment under the influence of carrier-phase-error and envelope delay error and the relationship of combined efficiency and signal coherent bandwidth.
Journal ArticleDOI
Application of time-reversal in electromagnetic power synthesis under distributed motion platform
TL;DR: In this article , the spatial power synthesis process based on time-reversal on a distributed fixed platform is modeled, and the feasibility of realizing precise power focusing is verified in theory.
References
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Journal ArticleDOI
Time Reversal of Electromagnetic Waves
TL;DR: The first experimental demonstration of time-reversal focusing with electromagnetic waves in a high-Q cavity is reported, with the wave found to converge to its initial source and is compressed in time.
Journal ArticleDOI
Time-reversal mirrors
TL;DR: The paper introduces the time-reversal approach in a discussion of the techniques used in optics for focusing through inhomogeneous media to ultrasonic pulsed fields where adaptive time delay focusing and TRM focusing are the main techniques of interest.
Journal Article
Analysis of HPM Spatial Power Combining Methods
TL;DR: Based on the theory of microwave spatial power combining, the authors analyzes the characteristics of phase array method, converging beam method and cross beam method, and the energy densities of both converging beams and cross beams are computed in the far field.
Journal Article
Design and simulation of a wide-beam ultra-wideband paraboloidal antenna with dual-source
TL;DR: In this article, a paraboloid was improved from an original paraboliod, which was separated in the middle and the two parts were comected by a metallic plate, and the improved planar TEM horn antenna was adopted as the source, and it is fed by the coaxial-cable vertically.
Journal Article
Research on Combined Efficiency of Spatial Power-combining Technique
TL;DR: In this paper, the authors introduced the spatial power-combining technique and analyzed the main factors affecting the combined efficiency, the efficiency of the AWGN environment under the influence of carrier-phase-error and envelope delay error and the relationship of combined efficiency and signal coherent bandwidth.