한국항행학회논문지 (Journal of Advanced Navigation Technology)

  • 제24권6호
  • /
  • Pages.581-586
  • /
  • 2020
  • /
  • 1226-9026(pISSN)
  • /
  • 2288-842X(eISSN)
한국항행학회 (The Korean Navigation Institute)
권호 표지
DOI QR코드

DOI QR Code

지상파 DTV 및 UHD TV용 수평 슬릿이 추가된 소형 광대역 루프 안테나 설계

Design of Compact Wideband Loop Antenna with Horizontal Slits for Terrestrial DTV and UHD TV Applications

  • Yeo, Junho (School of ICT Convergence, Daegu University) ;
  • Lee, Jong-Ig (Department of Applied Electronics Engineering, Dongseo University)
  • 투고 : 2020.11.09
  • 심사 : 2020.12.15
  • 발행 : 2020.12.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 수평 슬릿이 추가된 지상파 디지털 TV(DTV) 및 UHD TV용 광대역 루프 안테나의 설계 절차와 방법을 제안하였다. 제안된 루프 안테나는 정사각형 루프와 두 개의 원형 섹터로 구성되는 기존의 광대역 루프 안테나에 소형화하기 위해 두 개의 원형 섹터에 수평 슬릿을 추가하였다. 급전을 위해 아래쪽 원형 섹터의 중앙에 동일면 도파관(CPW; coplanar waveguide) 전송선로가 삽입되었다. CPW 급전선로는 DTV 및 UHD TV 응용을 위해 75 옴 포트 임피던스를 사용하여 설계되었으며, 임피던스 정합을 개선하기 위해 중심신호선의 끝이 점점 가늘어지게 설계되었다. 최종 설계된 안테나는 두께가 0.8 mm인 FR4 기판에 제작하였다. 특성 실험 결과, 전압 정재파비(VSWR; voltage standing wave) < 2인 대역이 444.3-820.1 MHz로 DTV 대역(470-698 MHz)과 UHD TV 대역(698-771 MHz)에서 동작하는 것을 확인하였다.

In this paper, the design process and method for a compact wideband loop antenna for terrestrial digital TV (DTV) and ultra high definition (UHD) TV applications was proposed. Horizontal slits were added on the two circular sectors of the proposed loop antenna in order to miniaturize the existing wideband loop antenna consisting of a square loop and two circular sectors. A CPW transmission line was inserted in the center of the lower circular sector as a feed line. The CPW feed line was designed using the 75 ohm port impedance for DTV and UHD TV applications, and a tapered center-signal line was designed to improve the impedance matching. The final designed antenna was fabricated on an FR4 substrate with a thickness of 0.8 mm. The experiment results show that the proposed compact loop antenna operates in the frequency band of 444.3-820.1 MHz for a VSWR < 2, which fully covers the DTV and UHD TV bands.

키워드

참고문헌

  1. UHD Korea [Internet]. Available: http://uhdkorea.org/?page_id=31123
  2. Digital conversion, channel reallocation, and DTV KOREA [Internet]. Available: http://tech.kobeta.com/wp-content/uploads/2016/10/21602.pdf
  3. A. Punchihewa, "Tutorial on digital terrestrial television broadcasting," in Proceeding of 5th International Conference on Information and Automation for Sustainability (ICIAFs), Colombo: Sri Lanka, pp. 58-63, Dec. 2010.
  4. O. T. C. Chen and C. Y. Tsai, "CPW-fed wideband printed dipole antenna for digital TV applications," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 12, pp. 4826-4830, Dec. 2011. https://doi.org/10.1109/TAP.2011.2165488
  5. J. I. Lee, J. Yeo, and Y. K. Cho, "Broadband compact quasi-Yagi antenna for indoor digital TV," Microwave and Optical Technology Letters, Vol. 55, No. 12, pp. 2859-2863, Dec. 2013. https://doi.org/10.1002/mop.28012
  6. SPECTRUM PRODUCT. LP49 [Internet]. Available: http://www.spectrum.co.kr/shop/product10.php?c1=1&c2=1&product=p
  7. J. I. Lee, J. Yeo, and J. T. Park, "Design of broadband planar dipole antenna for indoor digital TV reception," Journal of Korea Institute of Information and Communication Engineering, vol. 18, no. 3, pp. 497-502, Mar. 2014. https://doi.org/10.6109/jkiice.2014.18.3.497
  8. SPECTRUM PRODUCT. K-Vesta [Internet]. Available: http://www.spectrum.co.kr/shop/product10.php?c1=1&c2=1&product=p
  9. J. Yeo and J. I. Lee, "CPW-fed wideband loop antenna for indoor digital TV applications," Journal of Korea Institute of Information and Communication Engineering, Vol. 21, No. 8, pp. 1492-1497, Aug. 2017. https://doi.org/10.6109/jkiice.2017.21.8.1492