Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Fabrication and analysis of flexible and transparent antenna on polyamide substrate for laptop computer

폴리아미드 기판에 제작된 노트북용 플렉서블 투명 전극 안테나의 제작 및 분석

  • Lee, Changmin (Graduate School of NID Fusion Technology, Seoul National University of Science and Technology) ;
  • Kim, Ilkwon (Department of Material Science & Engineering, Seoul National University of Science and Technology) ;
  • Kim, Youngsung (Graduate School of NID Fusion Technology, Seoul National University of Science and Technology) ;
  • Kim, Yongjin (Department of Electrical Information, Inha Technical College) ;
  • Jung, Changwon (Graduate School of NID Fusion Technology, Seoul National University of Science and Technology)
  • 이창민 (서울과학기술대학교 NID융합기술대학원) ;
  • 김일권 (서울과학기술대학교 신소재공학과) ;
  • 김용성 (서울과학기술대학교 NID융합기술대학원) ;
  • 김용진 (인하공업전문대학 전기정보과) ;
  • 정창원 (서울과학기술대학교 NID융합기술대학원)
  • Received : 2014.04.08
  • Accepted : 2014.07.10
  • Published : 2014.07.31
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents an antenna design that can be applied to flexible transparent conducting film. The antennas shaping PIFA (Planar Inverted F-shpae Antenna) were produced on polyamide substrates, which are flexible. The IZTO/Ag/IZTO multilayer films were used for the antennas and exhibited superior electrical, optical and flexible characteristics. This study compared the transparency and performance of two antennas (IZTO/Ag/IZTO multilayer film, and Ag monolayer film). The operation frequencies were set to 5.18~5.32 GHz of WLAN (802.11a). The performance showed a maximum efficiency and peak gain of 89 % and 5.86 dBi, respectively.

본 논문은 현재 폭넓게 연구 되고 있는 투명하면서 유연성을 갖는 플랙서블 투명전극 어플리케이션 (플렉시블 디스플레이, 터치패널, 투명 전자신문, 모바일 기기 등)에 사용 될 수 있는 안테나 설계에 관한 것이다. 안테나는 PIFA(Planar Inverted F-shaped Antenna) 구조의 노트북용 안테나로 플랙서블 (Flexible)한 폴리아미드 (Polyamide)기판위에 제작 되었으며, 안테나 전극은 IZTO/Ag/IZTO의 3층 투명 전극을 이용하여 우수한 전기적, 광학적 특성을 나타내면서 높은 유연성을 가진다. 또한 본 논문에서는 두 가지 전극 (IZTO/Ag/IZTO 3층전극, Ag 단층전극)에 따른 투명도 및 안테나 성능을 비교를 하였다. 안테나의 공진주파수는 WLAN (802.11a)의 5.18~5.32 GHz대역이며, 성능 측정 결과 최대 89 %의 효율과 5.86 dBi의 성능을 갖는다.

Keywords

References

  1. F. Colombel, X. Castel, M. Himdi, G. Legeay, S. Vigneron and E. Motta Cruz, "Ultrathin metal layer, ITO film and ITO/Cu/ITO multilayer towards transparent antenna", IET Science, Measurement and Technology, Volume 3 Issue 3, pp. 229-234, September 2009. DOI: http://dx.doi.org/10.1049/iet-smt:20080060
  2. D. J. Son, Y. D. Ko, D. G. Jung, J. H. Boo, S. H. Choa, and Y. S. Kim, "Thermal Effect on characteristics of IZTO Thin Films Deposited by Pulsed DC Magnetron Sputtering", Bull. Korean Chem Soc, Volume 32 No 3, pp. 847-851, 2011. DOI: http://dx.doi.org/10.5012/bkcs.2011.32.3.847
  3. J. W. Kang, W. I. Jeong, J. J. Kim, H. K. Kim, D. G. Kim, and G. H. Lee, "High Performance Flexible Organic Light-Emitting Diode Using Amorphous Indium Zinc Oxide Anode", Electrochemical and Solid-State Ltters, Volume 10 Issue 6, pp. J75-J78, March 2007. DOI: http://dx.doi.org/10.1149/1.2720635
  4. K. H. Choi, H. J. Nam, J. A. Jeong, S. W. Cho, H. K. Kim, J. W. Kang, D. G. Kim, and W. J. Cho, "Highly flexible and transparent InZnSnOx/Ag/InZnSnOx multilayer electrode for flexible organic light emitting diodes", Applied Physics Letters, Volume 92, No. 223302, June. 2008. DOI: http://dx.doi.org/10.1063/1.2937845
  5. K. L. Wong, W. J. Chen, T. and W. Kang, "Small-Size Loop Antenna With a Parasitic Shorted Strip Monopole for Internal WWAN Notebook Computer Antenna", IEEE Transaction on Antennas and Propagation, Vol. 59, No. 5, pp.1733-1738, May, 2011. DOI: http://dx.doi.org/10.1109/TAP.2011.2122298
  6. K. L. Wong, W. J. Chen, L. C. Chou, and M. R. Hsu "Bandwidth Enhancement of the Small-Size Internal Laptop Computer Antenna Using a Parasitic Open Slot for Penta-Band WWAN Operation", IEEE Transaction on Antennas and Propagation, Vol. 58, No. 10, pp.3431-3435, October, 2010. DOI: http://dx.doi.org/10.1109/TAP.2010.2055815
  7. C. T. Lee and K. L. Wong "Internal WWAN Clamshell Mobile Phone Antenna Using a Current Trap for Reduced Ground Plane Effects", IEEE Transaction on Antennas and Propagation, Vol. 57, No. 10, pp.3303-3308, October, 2009. DOI: http://dx.doi.org/10.1109/TAP.2009.2029612