An efficient high-frequency method of the EM near-field scattering from an electrically large target
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Conghui Qi
Abstract
In this paper, an efficient high-frequency method combining physical optics and shooting and bouncing rays is proposed to calculate the electromagnetic near-field scattering from the electrically large target (such as ship) in the near zone. In order to solve the mono-static and bi-static scattering problems, the local expansion technique based on the facets of target is presented to account for the near-field scattering, which has a singularity-free characteristic. And then the near-field contour-integral representation is introduced by refining the formulations in traditional far-field calculation to reduce the computational complexity. Therefore, this method is more straightforward to deal with the near-field scattering problem. Finally, some analyses on the near-field scattering characteristics and Doppler spectra of a surveillance ship in near zone are investigated by using the proposed method.
Funding source: National Natural Science Foundation of China 10.13039/501100001809
Award Identifier / Grant number: 61801090
Award Identifier / Grant number: 61901394
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This work is supported by National Natural Science Foundation of China (61901394, 61801090).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Research Articles
- Analysis on space transmission model of the Microwave Wireless Power Transfer system
- Impact of broadband power line communication on high frequency equipment using impact analysis
- Design of high-efficiency Hybrid Power Amplifier with concurrent F&F−1 class operations for 5G application
- An E-band Variable Gain Amplifier with 24 dB-control range and 80 to 100 GHz 1 dB bandwidth in SiGe BiCMOS technology
- An efficient high-frequency method of the EM near-field scattering from an electrically large target
- Design and fabrication of miniaturized tri-band frequency selective surface with polarization-independent and angularly stable response
- Efficient and optimized six- port MIMO antenna system for 5G smartphones
- Diversity performance analysis of four port triangular slot MIMO antenna for WiBro and ultrawide band (UWB) applications
- An on-chip circular Sierpinski shaped fractal antenna with defected ground structure for Ku-band applications
- Compact rat-race ring coupler with modified T type capacitor loading
- Design and development of metamaterial bandpass filter for WLAN applications using circular split ring resonator
- A microstrip planar lowpass filter with ultra-wide stopband using hexagonal-shaped resonators
- CSRR metamaterial based BPF with wide attenuation band
- DEMUX with low crosstalk and compact channel drop filter based on photonics crystals ring resonator with high quality factor
- High power and immunity high Q PMC packaged dual notch high power suspended defected stripline filter
