Journal of electromagnetic engineering and science

  • 제17권1호
  • /
  • Pages.34-38
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  • 2017
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  • 2671-7255(pISSN)
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  • 2671-7263(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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Design of an Active Tunable Bandpass Filter for Spectrum Sensing Application in the TVWS Band

  • Kim, Dong-Su (Department of Electronic Engineering, Sogang University) ;
  • Kim, Do-Hyun (Department of Electronic Engineering, Sogang University) ;
  • Yun, Sang-Won (Department of Electronic Engineering, Sogang University)
  • 투고 : 2016.08.29
  • 심사 : 2017.01.12
  • 발행 : 2017.01.31
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초록

In this paper, we propose an active tunable bandpass filter (BPF) for efficient spectrum sensing in the TV White Space (TVWS) band. By designing a narrow bandwidth, it is possible to improve the sensing probability. The basic circuit configuration involves switching the PIN diode compromising capacitor bank to change the capacitance of the LC resonant circuit. To cover the whole TVWS band effectively, we add a varactor diode, and the bandwidth is set to 25-MHz. We improve the insertion loss by using the active capacitance circuit. The tunable BPF in the TVWS band with a 20-MHz interval is designed to have 11 channels with a bandwidth of 25 MHz and a low insertion loss of 1.7-2.0 dB.

키워드

참고문헌

  1. H. Hassanieh, L. Shi, O. Abari, E. Hamed, and D. Katabi, "BigBand: GHz-wide sensing and decoding on commodity radios," Massachusetts Institute of Technology (MIT), Cambridge," MA, Technical Report No. MIT-CSAIL-TR-2013-009, 2013.
  2. M. A. El-Tanani and G. M. Rebeiz, "Corrugated microstrip coupled lines for constant absolute bandwidth tunable filters," IEEE Transactions on Microwave Theory & Techniques, vol. 58, no. 4, pp. 956-963, 2010. https://doi.org/10.1109/TMTT.2010.2042517
  3. F. L. Yu, Y. B. Zhang, X. Y. Zhang, B. J Hu, and X. Y. Wang, "Tunable bandpass filters with constant absolute bandwidth and high linearity," in Proceedings of 2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT), Shenzhen, China, 2012, pp. 1-3.
  4. J. H. Lee, J. W. Choi, X. G. Wang, and S. W. Yun, "Design of tunable bandpass filter using PIN diode with constant absolute bandwidth," in Proceedings of Asia-Pacific Microwave Conference (APMC), Seoul, Korea, 2013, pp. 191-193.
  5. Z. Zhao, J. Chen, L. Yang, and K. Chen, "Three-pole tunable filters with constant bandwidth using mixed combline and split-ring resonators," IEEE Microwave and Wireless Components Letters, vol. 24, no. 10, pp. 671-673, 2014. https://doi.org/10.1109/LMWC.2014.2340996
  6. G. Nicolini, C. Guines, D. Passerieux, P. Blondy, G. Neveu, M. P. Dussauby, W. Rebernak, and, M. Giraudo, "Constant absolute bandwidth UHF tunable filter using RF MEMS," in Proceedings of 2012 7th European Microwave Conference (EuMIC), Amsterdam, The Netherlands, 2012, pp. 687-690.
  7. Y. C. Li and Q. Xue, "Tunable balanced bandpass filter with constant bandwidth and high common-mode suppression," IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 10, pp. 2452-2460, 2011. https://doi.org/10.1109/TMTT.2011.2161325
  8. Q. Xiang, Q. Feng, X. Huang, and D. Jia, "Electrical tunable microstrip LC bandpass filters with constant bandwidth," IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 3, pp. 1124-1130, 2013. https://doi.org/10.1109/TMTT.2013.2241781
  9. J. S. Hong and M. J. Lancaster, Microstrip Filters for RF/Microwave Applications. New York: Wiley, 2001.
  10. B. K. KIM and B. Lee, "Tunable bandpass filter with varactors based on the CRLH-TL metamaterial structure," Journal of Electromagnetic Engineering and Science, vol. 13, no. 4, pp. 245-250, 2013. https://doi.org/10.5515/JKIEES.2013.13.4.245
  11. Y. H. Chun, J. R. Lee, S. W. Yun, and J. K. Rhee, "Design of an RF low-noise bandpass filter using active capacitance circuit," IEEE Transactions on Microwave Theory & Techniques, vol. 53, no. 2, pp. 687-695, 2005. https://doi.org/10.1109/TMTT.2004.840565
  12. G. L. Matthaei, L. Young, and E. M. T. Jones, Microwave Filters, Impedance-Matching Networks, and Coupling Structures. Norwood, MA: Artech House, 1980.

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