Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지
DOI QR코드

DOI QR Code

Study on Broadband HTS Antenna Array for Satellite Communication

위성통신용 광대역 고온초전도 배열 안테나에 관한 연구

  • 정동철 (우석대학교 정보통신컴퓨터공학부) ;
  • 윤창훈 (우석대학교 정보통신컴퓨터공학부)
  • Published : 2004.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

Although $High-T_c $superconducting HTS antennas have high efficiency and high gain, narrow bandwidth due to the high Q is the major limitation for application of satellite communication and mobile communication. Defining bandwidth as the frequency range over which standing wave ratio (SWR) is 2:1 or less, HTS antenna bandwidths are typically less than 1 %. Thus considerable effort has been focused on developing HTS antennas for broadband operation. In this work the HTS antenna array, using the bipin antenna which consisted of two triangle-radiation patches, was designed and fabricated using a ${YBa}_2{Cu}_3{O}_7x (YBCO)$ superconducting thin film on a MgO substrate for broadband operation. Also gold antennas with the same dimension as our HTS antennas were fabricated on the MgO substrate for the comparison. Experimental results for both antennas were reported in terms of radiation patterns, return losses, bandwidths and other various characteristics. The center frequency of HTS antennas was 20.28 GHz and the bandwidth obtained was significant 10 %.

Keywords

References

  1. H. Appl. Phys. v.8 no.12 Anomalous microwave properties of high-Tc superconducting microstrip antennas ariund the critical temperature D.C.Chung;B.S.Han;Y.H.Lee;H.S.Choi;O.B.Hyun
  2. 전기전재재료학회논문지 v.16 no.11 고온처전도 마이크로파 통시소자 연구개발현황 정동철
  3. 전기전재재료학회논문지 v.9 no.8 고온초전도 미이크로스트립 패치 안테나의 근거리 전자장 해석 정동철;박경국;한태희;김민기;한병성
  4. 전기전재재료학회논문지 v.9 no.7 Bi(Pb)SrCaCuO superconductor fabricated by interdiffusion of srCaCuO and BiPbCuO double layers H.S.Choi;D.C.Chung;B.S.Han
  5. Unt. J.Infrared Waves" v.6 A low-noise receiver for milli-meter and submillimeter waves C.Zah;D.P.Woody;R.E.Miller;T.G.Phillips https://doi.org/10.1007/BF01011947
  6. IEEE Trans. Microwave Theory Tech. v.26 no.2 Planar tiangular resonators with magnetic walls J.Helszajn;D.S.James
  7. IEEE Trans. Antennas Propagat. v.41 no.9 Theoretical and numerical treatment of surface integrals involving the free space Greens function S.Caorsi;D.Moreno;F.Sidoti https://doi.org/10.1109/8.247757
  8. IEEE Trans. Antennas Propagat. v.30 no.3 Electromagnetic scattering by surfaces of arbitraty shape S.M.Rao;D.R.Wilton;A.W.Glisson https://doi.org/10.1109/TAP.1982.1142818
  9. IEEE Trans. Applied Supercond. v.8 Thin film HTS plannar antennas M.Lancaster;H.Wang;J.S.Hong https://doi.org/10.1109/77.740682
  10. IEEE Trans. on Antennas & Prop. v.41 no.7 Superconducting microstrip antennas: an experimental of two feeding methods M.A.Richard;K.B.Bhasin;C.Claspy https://doi.org/10.1109/8.237630
  11. IEEE Trans. Appl. Supercond. v.11 no.1 Broadband HTS microstrip antennas for satellite communication Dong Chul Chung https://doi.org/10.1109/77.919296