Browse > Article

A Study on the Characteristic of Variable Impedance Line using DGS  

Kim Young-Ju (국민대학 전자공학과)
Joung Myoung-Sub (국민대학 전자공학과)
Park Jun-Seok (국민대학 전자공학과)
Cho Hong-Goo (국민대학 전자공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.54, no.1, 2005 , pp. 35-40 More about this Journal
Abstract
In this paper, we designed and fabricated the variable impedance line by using the DGS(Defected Ground Structure) which is useful in mounting the external lumped elements. Also we used a varactor diode as Control device stuff at the proposed variable impedance line. We are able to change the impedance of transmission line as varied the capacitance of varactor diode by adjusting DC bias. The impedance variation of the proposed DGS line is about maximum 70 Ω. We will study about the application of DAM(Direct antenna modulation) in the future work.
Keywords
DGS (Defected Ground Structure); Variable Impedance Line; DAM(Direct Antenna Modulation);
Citations & Related Records
연도 인용수 순위
  • Reference
1 Hung-Yu David Yang, 'Theory of Microstrip Lines on Artificial Periodic Substrates,' IEEE Trans. on Microwave Theory and Tech., vol. 47, no.5, pp. 629-635, May 1999   DOI   ScienceOn
2 M. S. Jung, 'A Study on the Novel DGS and its Application to Oscillator Design', Doctoral dissertation, pp. 45-61, 2003
3 D. Ahn, J. S. Park, C. S. Kim, Y. Qian, and T. Itoh, 'A design of the low-pass filter using the novel microstrip defected gound structure,' IEEE Tran, Microwave Theory Tech., vol. 49, no. 1, pp. 86-93, Jan. 2001   DOI   ScienceOn
4 C. S. Kim, J. S. Lim, S. W. Nam, K. Y. Kang, J. I. Park, G. Y. Kim, and D. Ahn, 'The Equivalent Circuit Modeling of Defected Ground Structure with Spiral Shape', IEEE MTT-s Digest, pp. 2125-2128, 2002   DOI
5 C. S. Kim, J. S. Lim, S. W. Nam, K. Y. Kang, and D. Ahn, 'Equivalent circuit modeling of spiral defected ground structure for microstrip line', Electronics Letter, vol. 38, no. 19, pp. 1109-1111, 12th Sep. 2002   DOI   ScienceOn
6 J. S. Park, J. H. Kim, J. H. Lee, S. H. Kim, and S. H. Myung, 'A Novel Equivalent Circuit and Modeling Method for Defected Ground Structure and Its Application to Optimization of a DGS Lowpass Filter', IEEE MTT-s Digest, pp. 417-420, 2002   DOI