Journal of information and communication convergence engineering

  • 제8권3호
  • /
  • Pages.263-266
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  • 2010
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  • 2234-8255(pISSN)
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  • 2234-8883(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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A Novel Compact Tunable Bandpass Filter Loaded Varactor Diode on the DGS

  • Kim, Gi-Rae (Department of Electronics Engineering, Silla University)
  • 투고 : 2010.04.12
  • 심사 : 2010.05.17
  • 발행 : 2010.06.30
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초록

In this paper, a novel defected ground structure (DGS) pattern with enhanced effective capacitance (varactor diode) and a hole in PCB center is presented. The increase in effective capacitance enables the new DGS pattern to achieve a lower resonance than the DGS pattern for the same etched square dimension. The hole in the center also can make resonator frequency lower with better characteristic. According to the tunable characteristic of varactor diode, the resonant frequencies can be tunable. Simulation results show that a lower resonance is achieved with active device, compared to a common DGS pattern.

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참고문헌

  1. Julio A. Navarro and Kai Chang, "Varactor-Tunable Uniplanar Ring Resonators," IEEE Trans. Microwave Theory & Tech., vol. 41, no.5, pp.760-766, 1993. https://doi.org/10.1109/22.234508
  2. J.-S. Lim, Ch.-S. Kim, Y.-T. Lee, et al, "A new type of low pass filter with defected ground structure", European Microwave Week, pp. 24-26, Sep. 2002.
  3. C.S. Kim, J.S. Lim, etc, "Equivalent circuit modeling of spiral defected ground structure for microstrip line," Electronics Letters, vol. 38, no.19, pp.1109-1110, 2002. https://doi.org/10.1049/el:20020742
  4. C. C. Wong, C. E. Free, "DGS pattern with enhanced effective capacitance," Electronics Letters, vol. 42, no.8, pp.470-471, 2006. https://doi.org/10.1049/el:20060316
  5. J. S. Park, M. S. Jung, "A novel defected ground structure for an active device mounting and its application to a microwave oscillator," IEEE Microwave and Wireless Components Letters, vol.14, no.5, pp.198-200, 2004. https://doi.org/10.1109/LMWC.2004.827861
  6. Duk-Jae Woo and Taek-Kyung Lee, "Suppression of harmonics in Wilkinson power divider using dual-band rejection by asymmetric DGS," IEEE Trans. Microwave Theory & Tech., vol. 53, no. 6, pp.2139- 2144, 2005. https://doi.org/10.1109/TMTT.2005.848772
  7. N. C. Karmakar, S. M. Roy, and I. Balbin. "Quasi-static modeling of defected ground structure," IEEE Trans. Microwave Theory & Tech., vol.54, no.5, pp.2160-2168, 2006. https://doi.org/10.1109/TMTT.2006.873633
  8. A. Boutejdar, A. Batmanov, A. Elsherbini, E. P. Burte and A. S. Omar, "A new compact tunable bandpass filter using defected ground structure with active structure," IEEE Antennas and Propagation Society International Symposium, pp. 1-5,2008.