Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지
DOI QR코드

DOI QR Code

Formulation of the Green's Functions for Coplanar Waveguide Microwave Devices as Genetic Algorithm-Based Complex Images

  • Han, DaJung (Dept. of Information & Telecommunication Engineering, Incheon National University) ;
  • Lee, ChangHyeong (Dept. of Information & Telecommunication Engineering, Incheon National University) ;
  • Kahng, Sungtek (Dept. of Information & Telecommunication Engineering, Incheon National University)
  • Received : 2016.11.07
  • Accepted : 2017.03.29
  • Published : 2017.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

A new Complex Image Method based on Genetic Algorithm (GA) is proposed to calculate the Green's functions of CPW (coplanar waveguide)-type microwave components and antennas. The closed-forms of the spectral-domain integrals are obtained by the GA, avoiding the conventional procedures of the tedious linear algebra and the sampling conditions sensitive to the complex-variable sampling paths adopted in the Prony's and GPOF methods. The proposed method is compared with the numerical Sommerfeld Integral, which results in good agreement.

Keywords

References

  1. R. Simons et al, "Modeling of Some Coplanar Waveguide Discontinuities," IEEE Trans. Microwave Theory and Tech., vol. MTT-36, pp. 1796-1803, Dec. 1988.
  2. C. Chiu et al, "A Moment-Method Analysis for Coplanar Waveguide Discontinuity Inductances," IEEE Trans. Microwave Theory and Tech., vol. MTT-41, pp. 1511-1514, Sept. 1993.
  3. Y. L. Chow et al, "Closed Spatial Green's Function for the Thick Substrate," IEEE Trans. Microwave Theory and Tech., vol. MTT-39, pp. 588-592, Mar. 1991.
  4. D. G. Fang et al, "Discrete Image Theory for Horizontal Electric Dipoles in a Multilayered Medium," Proc. IEE, vol. 135, Pt. Oct. 1991.
  5. R. A. Kipp et al, "Complex Image Method for Sources in Bounded Regions of Multilayer Structures," IEEE Trans. Microwave Theory and Tech., vol. MTT-42, pp. 860-865, May 1994.
  6. M. I. Aksun, "A Robust Approach for the Derivation of Closed-form Green's Functions," IEEE Trans. MTT, vol. MTT-44, pp. 651-658, May 1996.
  7. F. Ling et al, "Discrete Complex Image Method for Green's functions of General Multilayered Media," IEEE Microwave And Guided Wave Letters, vol. 10, pp. 400-402, Oct. 2000. https://doi.org/10.1109/75.877225
  8. P. J. Papakanellos et al, "Analysis of an Infinite Current Source Above a Semi-Infinite Lossy Ground Using Fictitious Current Auxiliary Sources in Conjunction with Complex Image Theory Techniques," IEEE Trans. Antennas and Propagation, vol. 49, pp. 1491-1503, Oct. 2001. https://doi.org/10.1109/8.954939
  9. Y. Rahmat-Samii et al, Electromagnetic Optimization by Genetic Algorithms, New York: John Wiley & Sons, 1999.
  10. S. Kahng, "The Rectangular Power-Bus With Slits GA-Optimized to Damp Resonances," IEEE Transactions on Antennas and Propagation, vol. 55, no. 6, pp. 1892-1895, June 2007 https://doi.org/10.1109/TAP.2007.898642
  11. G. Byun, J.-C. Hyun, S. M. Seo, and H. Choo, "Optimum Array Configuration to Improve Null Steering Time for Mobile CRPA Systems," Journal of Electromagnetic Engineering And Science, vol. 16, no. 2, pp. 74-79, April, 2016 https://doi.org/10.5515/JKIEES.2016.16.2.74
  12. J. Jeon, S. Kahng, and H. Kim, "GA-Optimized Compact Broadband CRLH Band-Pass Filter Using Stub-Inserted Interdigital Coupled Lines," Journal of Electromagnetic Engineering And Science, vol. 15, no. 1, pp. 31-36, January, 2015 https://doi.org/10.5515/JKIEES.2015.15.1.31
  13. M. D. Wu, S. M. Deng, R. B. Wu, and P. Hsu, "Full-Wave Characterization of the Mode Conversion in a Coplanar Waveguide Right-Angled Bend," IEEE Trans. Microwave Theory Tech., vol. 43, no. 11, pp. 2532-2538, Nov. 1995. https://doi.org/10.1109/22.473174