The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Fabrication and Characterization of Wideband HTS Antennas for Satellite to Satellite Communication

위성 대 위성 통신용 광대역 HTS 안테나 제작 및 특성 해석

  • 정동철 (우석대학교 정보통신컴퓨터공학부)
  • Published : 2002.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

We designed wideband HTS antennas which consists of two triangle -radiation patches using a $YBa_2Cu_3O_{7-X}$ (YBCO) superconducting thin film. The major limitation of high-Tc superconducting (HTS) microstrip antennas is the narrow bandwidth due to the high Q and thin substrate. Defining bandwidth as the frequency range over which standing wave ratio (SWR) 2:1 or less, HTS antenna bandwidths are typically 0.85 % to 1.1 %. Thus considerable effort has been focused on developing antennas for broadband operation. To calculate input impedance and design of the broadband HTS antennas a moment method technique was used. The HTS antenna fabricated in this work was designed for K-band, which is useful band for satellite to satellite communications. The bandwidth obtained was a significant 6.7 % and the other measured performance of our HTS antenna, including the bandwidth, radiation Pattern, efficiency, standing wave ratio (SWR) and return losses was reported.

Keywords

References

  1. M. A. Hein, Progress, 'properties and prospects of passive high-temperature superconductive microwave devices in Europe', Supercon. Sci. Technol. vol. 10 pp. 867 - 871, 1997 https://doi.org/10.1088/0953-2048/10/12/001
  2. K. Y. Kang, I. S. Song, Y. S. Ha, S. K. Han, G. Y. Sung, I. H Song and G. Park, 'Microwave radiation and sensing of Joshepson junction with the log-periodic toothed trapezoid antenna of high-Tc superconducting thin films', IEEE Trans. Appl. Supercond. vol. 9, no. 2 pp. 3074 - 3076, 1999 https://doi.org/10.1109/77.783678
  3. Dong-Chul Chung, Kyung-Kuk Park, Sung-Jin Park, Byoung-Sung Han and Jong-Sun Hwang, 'Comparison Between High-Tc Superconducting Microstrip Filters and Normal Conducting Counterparts', IEEE Trans on Applied supercond., vol. 9 no. 2 pp.3882-3885, 1999 https://doi.org/10.1109/77.783875
  4. M. A. Richard, K. B. Bashin, and P. C. Claspy, 'Superconducting microstrip antennas: an experimental comparison of two feeding methods', IEEE Trans. Antennas Propagat, vol. 41, No. 7, pp.967-974, 1993 https://doi.org/10.1109/8.237630
  5. J. Helszajn, and D. S. James, 'Planar tiangular resonators with magnetic walls', IEEE Trans. Microwave Theory Tech., vol.26, no.2, 1978
  6. G. H. Brown and O. M. Woodward, 'Experimentally determined radiation characteristics of conial and triangular', RCA Rev., pp.425-452, 1952
  7. S. Caorsi, D. Moreno and F. Sidoti, 'Theoretical and numerical treatment of surface integrals involving the free space Greens function', IEEE Trans. Antennas Propagat., vol. 41, no. 9, pp.1296-1301, 1993 https://doi.org/10.1109/8.247757
  8. S. M. Rao, D. R. Wilton and A. W. Glisson, 'Electromagnetic scattering by surfaces of arbitrary shape', IEEE Trans. Antennas Propagat., vol. 30, no. 3 , pp.409-418, 1982 https://doi.org/10.1109/TAP.1982.1142818
  9. D. H. Schaubert and K. S. Yngvesson, 'Experimental study of a microstrip array on high permittivity substrate', IEEE Trans. Antennas Propagat., vol. 34, pp.92-97, Jan. 1986 https://doi.org/10.1109/TAP.1986.1143723
  10. H. A. Wheeler, 'The radiansphere around a small antenna,' Proc. IRE., Vol. 47, pp. 1325-1331, Aug. 1959 https://doi.org/10.1109/JRPROC.1959.287198