• 제목/요약/키워드: Gyoun

검색결과 205건 처리시간 0.023초

Estimation of the Substrate Size with Minimum Mutual Coupling of a Linear Microstrip Patch Antenna Array Positioned Along the H-Plane

  • Kwak, Eun-Hyuk;Yoon, Young-Min;Kim, Boo-Gyoun
    • Journal of Electrical Engineering and Technology
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    • 제10권1호
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    • pp.320-324
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    • 2015
  • Mutual coupling between antenna elements of a linear microstrip patch antenna array positioned along the H-plane including the effect of edge reflections is investigated. Simple formulas are presented for the estimation of the grounded dielectric substrate size with minimum mutual coupling. The substrate sizes calculated by these formulas are in good agreement with those obtained by the full-wave simulation and experimental measurement. The substrate size with minimum mutual coupling is a function of the effective dielectric constant for surface waves and the distance between the antenna centers. The substrate size with minimum mutual coupling decreases as the effective dielectric constant for surface waves on a finite grounded dielectric substrate increases.

Radiation Characteristics of a Probe-Fed Microstrip Patch Antenna on a Finite Grounded High Permittivity Substrate

  • Kwak, Eun-Hyuk;Yoon, Young-Min;Kim, Boo-Gyoun
    • Journal of Electrical Engineering and Technology
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    • 제10권4호
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    • pp.1738-1745
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    • 2015
  • Radiation characteristics of a probe-fed rectangular microstrip patch antenna printed on a finite grounded high permittivity substrate are investigated systematically for various square grounded dielectric substrate sizes with several thicknesses and dielectric constants by experiment and full wave simulation. The effect of the substrate size on the radiation characteristics of a rectangular patch antenna is mainly determined by the effective dielectric constant of surface waves on a grounded dielectric substrate. As the effective dielectric constant of surface waves increases, the substrate sizes for the maximum broadside gain and the required onset for a large magnitude of squint angle decrease, while the variations of the broadside gain, the front-to-back ratio, and the magnitude of squint angle versus the substrate size increase due to the increase of the power of the surface wave.

Resistance Switching Phenomena in Fe203 Thin Films Using

  • Lee, Sung-Yong;Lee, Jun-Young;So, Byung-Soo;Bae, Seung-Muk;Hwang, Jin-Ha;Lee, Ho-Min;Lee, Sun-Sook;Chung, Taek-Mo;Kim, Chang-Gyoun;An, Ki-Seok;Kim, Yeong-Cheol
    • 한국반도체및디스플레이장비학회:학술대회논문집
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    • 한국반도체및디스플레이장비학회 2007년도 춘계학술대회
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    • pp.251-251
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    • 2007
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