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A Study on the Advancement of Chinese Industry and the Strategy of Korean Companies in China (중국산업의 고도화와 중국진출 한국기업의 대응전략)

  • Rho, Hyung-Jin
    • Journal of the Korea Society of Computer and Information
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    • v.12 no.2 s.46
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    • pp.251-263
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    • 2007

  • A This study was conducted to identify the advancement of Chinese industry and the strategy of advancing Korean companies into China. According to the results of the study, it is very important for Korean companies to adapt themselves to Chinese circumstances. The development of Chinese industry can be a threat to Korean companies, but it can also be an opportunity to Korean companies. It's up to Korean companies' correspondence strategy. The best strategy of Korean companies on the advancement of Chinese industry is development a blue ocean strategy.

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A Study on AESA Antenna Performance Advancement for Seeker (탐색기용 AESA 안테나 성능 고도화 연구)

  • Youngwan Kim;Jong-Kyun Back;Hee-Duck Chae;Ji-Han Joo
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.23 no.5
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    • pp.103-108
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    • 2023

  • In this paper, a performance enhancement study of an AESA antenna that can be applied to a seeker that serves as the eye of a missile was conducted, and the performance of the antenna was verified through actual measurement. When designing an AESA antenna, the optimization of the active reflection coefficient must be considered during transmission due to the mutual coupling between radiators that inevitably occurs, and the selection of a radiator that can overcome the space limitation of the seeker with a small size/light weight is an important design consideration. Accordingly, optimization in terms of electrical performance and low-profile structure is required through research on array antennas for application to the AESA structure. The radiator designed and measured in this paper was designed as an SFN that can satisfy the low-profile structure while enhancing the performance of a general vivaldi antenna. Through this paper, it was confirmed that SFN has the same broadband characteristics as general vivaldi antennas and has optimized characteristics required for AESA antennas. The structure optimized through simulation confirmed the pattern characteristics and active reflection coefficient characteristics through the fabrication of actual proto-type antennas.

  • https://doi.org/10.7236/JIIBC.2023.23.5.103 인용 PDF HTML