Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Diplexer of Microstrip Transmission Lines

마이크로스트립 선로 형태의 다이플렉서

  • Park, Yhl (Dept. of Radio Comm. Dongyang Jr. Tech. College)
  • 박일 (양공업전문대학 무선정보통신과)
  • Published : 2008.03.25
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Abstract

Transmission line characteristics in microstrip line is used to in this paper. 5-microstrip lines composed of various spacing between them suggests characteristics of a diplexer in simulation. By applying the simiulation results, the diplexer realized shows better results of flat responses in bandpass characteristics and bandstop characteristics around 15 dB than symmetric spacing one.

본 논문에서는 마이크로스트립선의 전송선로 특성을 이용하여 5선으로 선간 간격의 폭을 조정한 값으로 시뮬레이션하여 다이플렉서 특성을 구하고 이를 실현하였다. 제작한 다이플렉서를 실험한 결과 기존의 균등한 선간 간격 배열 구조에서의 특성보다 선간 간격을 각기 다르게 한 경우 통과 대역에서 평탄 특성이, 저지 대역에서는 감쇠량이 약 15dB이상 개선되었음을 확인하였다.

Keywords

References

  1. Lange, J., "Interdigitated Stripline Quadrature Hybrid," IEEE Trans. on Microwave Theory and Techniques, vol.MTT-17,no.12, pp.1150-1151, December, 1969
  2. Tajima, Y. and Kimihashi, S., "Multiconductor Couplers," IEEE Trans. on Microwave Theory and Techniques, vol. MTT-26, no.10, pp. 795-801, October 1978
  3. Tripathi,V.K.,"The Scattering Parameters and Directional Coupler Analysis of Characteristically Terminated Three-Line Structures in an Inhomogeneous Medium," IEEE Trans. on Microwave Theory and Techniques, vol. MTT-29, no.1, pp.22-26, January, 1981
  4. Lee H. J., "Computational Methods for the Quasi-TEM Characteristics of Fundamental MIC Planar Structures," Ph.D. Thesis,Electrical and Computer Eng. Dept., Oregon State University, U.S.A., Feb.1983
  5. Chin Y. K. and Tripathi, V. K., "Analysis of the General Nonsymmetrical Directional Coupler with Arbitrary Terminations,"IEE Proc. vol.129, Pt.H. No.6, pp360-362, December 1982
  6. Schiffman,B.M. and Matthaei, G.L.,"Exact Design of Bandstop Microwave Filters," IEEE Trans. on Microwave Theory and Techniques, vol. MTT-12, no.1,pp.6-15,January 1964
  7. Bates, R. N., "Design of Microstrip Spurline Bandstop Filters," IEEJ. Microwaves, Optics and Acoustics,vol.1,No.6,pp.209-214, November 1977 https://doi.org/10.1049/ij-moa.1977.0029
  8. Nguyen, C., Hsieh, C., and Ball, D., "Millimeter Wave Printed Circuit Spurline Filters," IEEE 1983, MTT-S, Int.Microwave Symposium Dig. pp.98-100
  9. Nguyen,C.and Chang,K., "On the Analysis and Design of Spurline Bandstop Filters," IEEE Trans. on Microwave Theory and Techniques, vol. MTT-33, no.12, pp.1416-1421, December 1985
  10. Tripathi,V.K.,"Asymetric Coupled Transmission Lines in an Inhomogeneous Medium," IEEE Trans. on Microwave Theory and Techniques, vol.MTT-23, no.9, pp.734-739, September 1975
  11. Tripathi,V.K.,"On The Analysis of Symmetrical Three-line Microstrip Circuits," IEEE. Trans. on Microwave Theory and Techniques. vol.MTT-25, no.9, pp.726-729, September 1977
  12. 박일, 진년강, "MIC를 위한 지선형 대역소거 여파기의 주파수와 임피던스 특성의 연구," 한국통신학회지 제12권, 399-403쪽, 1987년.8월
  13. Cohn,S.B. and Coale,F.F.,"Directional Channel Separation Filters," Proc.IRE.44, pp.1018-1024, August 1956
  14. 박일, 강희창, 진년강, "마이크로파 집적회로를 이용한 복수 마이크로스트립선 결합회로의 설계," 한국통신학회 논문지 제16권 제9호, 862-875쪽, 1991년, 9월