Journal of information and communication convergence engineering

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
권호 표지
DOI QR코드

DOI QR Code

Compact Microstrip-Fed Square Loop Antenna for DTV Applications

  • Yeo, Junho (School of Computer and Communication Engineering/Information and Communication Research Center, Daegu University) ;
  • Lee, Jong-Ig (Division of Mechatronics Engineering, Dongseo University)
  • Received : 2016.09.07
  • Accepted : 2016.10.18
  • Published : 2016.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

A design method for a compact square loop antenna fed by a microstrip (MS) line for indoor digital television (DTV) applications is proposed. The proposed antenna consists of a square loop, circular sectors, and an MS line. The square loop combined with circular sectors is printed on one side of a substrate, and a $75-{\Omega}$ MS line is printed on the other side. The circular sectors are used as a wideband balun or transition to connect the MS line and the square loop. A prototype of the proposed square loop antenna operating in the DTV band (470-806 MHz) is designed and fabricated on an FR4 substrate. Experimental results show that the proposed antenna has the desired impedance characteristics in the frequency band of 464-1,220 MHz (89.8%) for a voltage standing wave ratio (VSWR) of <2 covering the DTV band, and a broadside gain of 0.8-3.3 dBi in the DTV band.

Keywords

References

  1. Digital television [Internet]. Available: https://www.fcc.gov/general/digital-television.
  2. J. Holopainen, O. Kivekas, C. Icheln, and P. Vainikainen, "Internal broadband antennas for digital television receiver in mobile terminals," IEEE Transactions on Antennas and Propagation, vol. 58, no. 10, pp. 3363-3374, 2010. https://doi.org/10.1109/TAP.2010.2055786
  3. C. M. Su, L. C. Chou, C. I. Lin, and K. L. Wong, "Internal DTV receiving antenna for laptop application," Microwave and Optical Technology Letters, vol. 44, no. 1, pp. 4-6, 2005. https://doi.org/10.1002/mop.20531
  4. Y. W. Chi and K. L. Wong, "Wideband printed dipole antenna for DTV signal reception," in Proceedings of IEEE Region 10 Conference (TENCON2007), Taipei, Taiwan, pp. 1-4, 2007.
  5. M. N. A. Karim, M. K. A. Rahim, T. Masri, and O. Ayop, "Fractal Koch dipole antenna for digital TV application," in Proceedings of 2008 IEEE International RF and Microwave Conference, Kuala Lumpur, Malaysia, pp. 314-317, 2008.
  6. 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, 2013. https://doi.org/10.1002/mop.28012
  7. R. E. Schneider, J. E. Ross III, C. Feit, D. Picolet, and C. Stuemke, "Antenna assemblies with tapered loop antenna elements and reflectors," U.S. Patent 7 839 347, Nov. 23, 2010.
  8. J. Yeo and J. I. Lee, "Coupled-sectorial-loop antenna with circular sectors for super wideband applications," Microwave and Optic Technology Letters, vo. 56, no. 7, pp. 1683-1689, 2014. https://doi.org/10.1002/mop.28416