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

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
권호 표지
DOI QR코드

DOI QR Code

Transition Structure Design of Wideband Double-sided Parallel-Stripline to Coplanar Stripline for Millimeter-wave Compact Radar System

밀리미터파 초소형 레이다용 광대역 DSPSL-CPS 전이구조 설계

  • Received : 2017.10.23
  • Accepted : 2017.12.08
  • Published : 2017.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

A high-performance wideband transition from double-sided parallel-stripline (DSPSL) to coplanar stripline (CPS) is proposed. This transition is designed by consideration of gradual field transformation and optimal impedance matching between DSPSL and CPS. Clear design guidelines of proposed transition are provided to determine the ground shape and the transition length. The fabricated transition exhibits less than 0.7 dB insertion loss per transition for frequencies from 6.2 to 18.2 GHz, and less than 1.25 dB insertion loss to over 30 GHz.

본 논문에서는 낮은 삽입 손실을 가지는 광대역 DSPSL (double-sided parallel-stripline) - CPS (coplanar stripline) 전이구조를 제안하였다. 제안하는 전이구조는 자연스러운 전계분포의 필드 변환과 DSPSL과 CPS 사이의 임피던스 정합의 관점에서 설계되었다. 전이구조의 명확한 설계방법을 제시하여 바닥면 그라운드의 변화와 전이구조의 길이를 결정할 수 있게 하였다. 설계의 제작된 전이구조의 특성은 전이구조 당 6.2 ~ 18.2 GHz의 대역에서 0.7 dB의 낮은 삽입 손실을 가지고 있으며, 6.2 ~ 30 GHz 이상의 대역에서 1.25 dB의 삽입 손실을 가짐을 확인하였다.

Keywords

References

  1. Z. Zhou, K. L. Melde, "Development of a broadband coplanar waveguide-to-microstrip transition with vias", IEEE Trans. Adv. Packag., vol. 31, no. 4, pp.861-871, Nov.2008. https://doi.org/10.1109/TADVP.2008.924254
  2. J. X. Chen, J. L. Li, Q Xue, "Novel via-less double-sided parallel-strip line to coplanar waveguide transition", Microw. Opt. Technol Lett., vol. 48, pp. 1717-1718, Sep. 2007.
  3. H-C. Ki, "A Study on Waveguide to Microstrip Antipodal Transition for 5G cellular systems", The Journal of The Institute of Internet, Broadcasting and Communication, Vol. 15, No. 4, pp. 185-190, Aug 2015. DOI: https://dx.doi.org/10.7236/JIIBC.2015.15.4.185
  4. X. Y. Zhang, J. X. Chen, Q. Xue "Broadband transition between double-sided parallel-strip line and coplanar waveguide', IEEE Microw. Wirel Compon. Lett. vol. 17, no. 2, pp. 103-105, Feb. 2007. https://doi.org/10.1109/LMWC.2006.890329
  5. Y-G. Kim, , D-S Woo, K. W. Kim, Y. K.Cho, "A new ultra-wideband microstrip-to-CPS transition'. IEEE MTT-S Int. Microw. Symp. Dig., Honolulu, HI, USA, 2007, pp. 1563-1566
  6. S. G. Kim, K Chang, "Ultrawide-band transitions and new microwave components using double-sided parallel-strip line", IEEE Trans. Microw. Theory Tech., vol. 52, no. 9, pp. 2148-2152, Sept. 2004. https://doi.org/10.1109/TMTT.2004.834165
  7. G-Q. Liu, L-S. Wu, W-Y. Yin, "Miniaturised dual-band rat-race coupler based on double-sided parallel stripline", Electron Lett.. 2011, 47, (14), pp. 800-802 https://doi.org/10.1049/el.2011.1488
  8. Ahn, C. H., and Chang, K.: 'Wideband coplanar stripline to double-sided parallel-strip line transition', Electron Lett., 2009, 45, (14), pp. 748-749 https://doi.org/10.1049/el.2009.1049
  9. Gupta, K. C., Garg, R., Bahl, I., and Bhartia, P.: 'Microstrip Lines and Slotlines' (Artech House, Norwood, MA, 1996), pp. 375-456.
  10. Pozar, D. M.: 'Microwave Engineering' (Wiley, 3rd edition, 2005), pp. 255-261
  11. Li, Y., Xue Q. Yung K.-N, and Long Y., 'The Backfire-to-Broadside Symmetrical Beam-Scanning Periodic Offset Microstrip Antenna', IEEE Trans. Antennas Propag., Vol. 58, No. 11, pp. 3499-3504, Sep. 2010 https://doi.org/10.1109/TAP.2010.2071352
  12. Y-G. Kim, Y-J Kim, K. W. Kim "An Efficient Design for an Ultra-Wideband Microstrip-to-CPS Transition Applicable to Millimeter-Wave Systems'. THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE, Vol. 26, No. 3, pp. 268-275, Mar 2015. https://doi.org/10.5515/KJKIEES.2015.26.3.268