The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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Design of Low Pass Filters Using Corrugated Waveguide for Satellite Communications

코르게이트 도파관을 사용한 위성통신용 저역통과 여파기의 설계

  • 김회종 (단국대학교 대학원 전자전기공학과) ;
  • 최학근 (단국대학교 전자공학과)
  • Received : 2013.01.24
  • Accepted : 2013.04.12
  • Published : 2013.04.30
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Abstract

In this paper, low pass filters(LPF) using corrugated waveguide for satellite communication is proposed. To design the proposed LPF, the corrugated waveguide and impedance transformers are combined. The corrugated waveguide is formed by arrangement of T-junction. To obtain low insertion loss and high isolation propriety, T-junction is designed by using Chebyshev function. Impedance transformers is designed by combining T-junction with different heights at both ends of the corrugated waveguide to get high return loss. The measured results of the proposed LPF have a return loss of over 35.4 dB, a insertion loss of less than 0.1 dB from 12.25 GHz to 12.75 GHz and a isolation propriety of over 54.5 dB from 14 GHz to 14.5 GHz. From these results, it is confirmed that the proposed waveguide LPF can be used for satellite communication.

본 논문에서는 코르게이트 도파관을 사용한 위성통신용 저역통과 여파기를 제안하였다. 본 구조는 위성통신용 시스템으로 사용되기 위해 임피던스 트랜스포머와 T-junction을 배열한 코르게이트 도파관이 결합된 형태로 설계하였다. T-junction은 낮은 삽입손실과 높은 격리도의 특성을 만족시키기 위해 Chebyshev 함수를 사용하여 설계하였다. 임피던스 트랜스포머는 높은 반사손실을 위해 코르게이트 도파관의 양 끝에 높이가 다른 T-junction을 결합한 구조로 설계하였다. 제작된 여파기는 12.25 ~ 12.75 GHz에서는 반사손실이 35.4 dB이상, 삽입손실은 0.1 dB이하, 14.0 ~ 14.5 GHz에서는 격리도가 54.4 dB이상으로 나타났다. 따라서 본 논문에서 제안된 저역통과 여파기는 위성통신용 시스템에 사용 가능함을 보였다.

Keywords

References

  1. Gyu-Je Sung, Sang-Won Yun, "The Design of Miniaturized Waveguide Bandpass Filters with Improved Spurious Characteristics", The journal of Korea Electromagnetic Engineering Society, Vol. 10, no.2, pp. 237-246, 1999
  2. David M. Pozer, "Microwave Engineering -3rd", John Wiely & son, USA, 2005
  3. Mike Golio, "The RF and microwave handkook", CRC Press, USA, 1954
  4. Sun-Won Kim, Jae-Hyuk Lim, Sung-Hoon Kim, Do-Soon Hwang, Ik-Min Jin, "Recent Trend in Satellite Manufacturing Market", Current Industrial and Technological Trends in Aerospace, Vol. 10, pp. 81-90, 2012
  5. Hyeon-Jin Lee, Hyun-Chul Kim, "Design of K-band Array Antenna for Satellite Communications", The Korean Institute of Electrical Engineers, Vol. 60P, pp. 167-171, 2012 https://doi.org/10.5370/KIEEP.2011.60.4.167
  6. J. Uher, J. Bornemann, Uwe Rosenberg, "Waveguide Components for Antenna Feed Systems : Theory and CAD", Artech House, Boston, USA, 1993
  7. S.B. Cohn, "Design Relations for the Wide-Band Waveguide Filter", Proc. of the I.R.E., Vol. 37, pp. 799-803, 1950
  8. Ralph Levy, "Tapered Corrugated Waveguide Low-pass Filter", IEEE Transactions on Microwave Theory and Techniques, Vol. 21, pp. 526-532, 1973 https://doi.org/10.1109/TMTT.1973.1128052
  9. W. Hauth, R. Keller, U. Rosenberg, "CAD of Waveguide Low-Pass Filters for Satellite Applications", 17th EuMC Proc. Rome, pp. 151-156, 1987
  10. Esteban, J., Rebollar, J.M., "Characterization of corrugated waveguides by modal analysis", Microwave Theory and Techniques, IEEE Transactions on, Vol. 39, NO. 6, pp. 937-61, 1991 https://doi.org/10.1109/22.81662
  11. Clarricoats, P.J.B,; Saha, P.K., "Propagation and radiation behaviour of corrugated feeds. Part 1: Corrugated-waveguide feed", Proc. of the IEE., Vol. 118, No.9, pp. 1167-1176, 1971
  12. James, G.L., "Analysis and Design of TE11-to -HE11 Corrugated Cylindrical Waveguide Mode Converters", Microwave Theory and Techniques, IEEE Transactions on , Vol. 29, pp. 1059-1066, 1981 https://doi.org/10.1109/TMTT.1981.1130499
  13. George L. Matthaei, Leo Young, E. M. T. Jones, "Microwave Filters, Impedance-Matching Networks, and Coupling Structures", Artech House INC, Dedham, USA, 1980
  14. N. Marcviz, "Waveguide Handbook", IEE, London, UK, 1986

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