결합 마이크로스트립 선로상의 펄스형태 신호의 전파 및 누화 특성 해석

Propagation and Crosstalk Characteristic Analysis of Pulse Shaped Signals on the Coupled Microstrip Lines

  • 박순근 (충북대학교 정보통신공학과) ;
  • 김남 (충북대학교 정보통신공학과) ;
  • 이승엽 (여수수산대학교 전자통신공학과) ;
  • 장우현 (한국전자통신연구원 정보통신표준연구센터)
  • Park, Sun-Keun (Dept.of Computer and Communication Engineering, Chungbuk Nat'l Univ.) ;
  • Kim, Nam (Dept.of Computer and Communication Engineering, Chungbuk Nat'l Univ.) ;
  • Rhee, Sung-Yup (Dept.of Electronics Communication Engineering, Yosu Nat'l Fisheries Univ.) ;
  • Jang, Woo-Hyun (Protocol Engineering Center, ETRI)
  • 발행 : 1997.10.01

초록

결합마이크로스트립 선로에서 여러형태의 펄스신호(가우시안 펄스, 구형 펄스, 사다리꼴 펄스, RF펄스)의 전 파특성을 해석하였다. 펼스신호의 시간영역의 응답을 구하기 위하여 비교적 정확성을 갖고 시율레이션하기에 편 리한 수치적분볍을 이용하였으며, 주파수에 따른 결합선로에서의 분산특성은 Kirschning과 Jansen의 closed f form 근사식을 사용하였다. 결합마이크로스트립 션로의 기하학적 구조(비유전율$\varepsilon_r$ , 기판두께 h, 스트립폭 w, 선로간의 간격 s)와 펄스폭 $\tau$ 등이 분산에 미치는 영향을 분석하였다. 그 결과 다른 파라미터에 비해 선로간의 거리가 펄스의 왜곡에 큰 영향을 주는 파라미터임을 알 수 있었다. 본 논문의 결과는 MIC 및 MMIC 회로의 설계시 마이크로스트립 선로의 비유전율, 기판두께, 스트립폭 그리고 선호 펄스의 펄스폭 등의 trade-off 결정에 적합하다.

The propagation properties of various pulse signal types(square pulse, Gaussian pulse, trapezoid pulse, RF pulse) on coupled microstrip lines are investigated. Numerical integration technique which has its accuracy and is easily simulated, is used to obtain the time domain response of pulse signals. Frequency-dependent characteristics of coupled microstrip line is obtained using Jansen's approximate equation. The propagation properties of pulse signal on coupled microstrip lines is analyzed regarding to its geometric structure (relative permittivity ${varepsilon}_r$ substrate height h, strip width w of the microstrip line) and pulse width ${\tau}$ of signal pulse. The simulation results show that space between two lines is very significant parameter in pulse distortion in comparison of any other parameters. The results of this paper are compatible to the trade-off determination of relative permittivity, substrate height, strip width and pulse width of signal pulse when a design of MIC and MMIC is necessary.

키워드

참고문헌

  1. IEE Trans. Microwave Theory Tech. v.MTT-37 no.2 Overview of quasi-planar transmission lines T. Itoh
  2. Microstrip Lines and Slotlines(2nd ed.) K. C. Gupta(et al.)
  3. IEEE Trans. Microwave Theory Tech. v.MTT-34 no.12 Dispersion of transient signals in microstrip transmission lines R. L. Veghte;C. A. Balanis
  4. IEEE Trans. Microwqve Theory Tech. v.MTT-38 no.12 Transient analysis of distortion and coupling in lossy coupled microstrips J. P. K Gil;C. A. Balanis
  5. IEEE Trans. Microwave Theory Tech. v.MTT-39 no.12 Asymmetric, multi-conductor low-coupling structures for high-density digital interconnects J. P. K Gilb;C. A. Balanis
  6. IEEE Trans. Microwave Theory Tech. v.MTT-41 no.6-7 Characterization of Picosecond Pulse Crosstalk Between Coupled Microstrip Lines with Arbitrary Conductor Width Yongxi Qian;Eikichi Yamashita
  7. IEEE Trans. Microwave Theory Tech. v.MTT-39 no.12 Dispersion Characteristics of Square Pulse with Finite Rise Time in Single, Tapered, and Coupled Microstrip Lines P. Pramanick;R. R. Mansour
  8. IEEE Trans. Microwave Theory Tech. v.MTT-32 no.1 Accurate Wide-Range Design Equations for the Frequency-Dependent Characteristic of Parallel Coupled Microstrip Lines M. Kirschning;R. H. Jansen
  9. Electron Lett. v.18 no.6 Accurate model for effective dielectric constant of microstrip with validity up to millimeterwave frequencies M. Kirschning;R. H. Jansen
  10. IEEE Trans. Microwave Theory Tech. v.MTT-36 no.3 Tests of microstrip dispersion formulas H. A. Atwarter