Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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A 90°-Bent Spur-Line Combined CRLH ZOR Bandpass Filter for the Channel of the UWB Communication System

  • Lee, Changhyeong (Dept. of Information & Telecommunication Engineering, Incheon National University) ;
  • Kahng, Sungtek (Dept. of Information & Telecommunication Engineering, Incheon National University)
  • Received : 2017.05.15
  • Accepted : 2017.12.29
  • Published : 2018.03.01
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Abstract

In this paper, a compact fully printable bandpass filter is suggested for a low-frequency channel 3.2 GHz ~ 3.7 GHz in the Ultra-Wideband (UWB) communication system. It is featured with a small geometry of $0.5{\lambda}_g/15$ and a low insertion loss despite using FR4 as a cheap substrate of a high dielectric loss. This is made possible by generating zeroth-order-resonance (ZOR) from one cell comprising two series resonances obviously separated from one shunt resonance as a third-order bandpass filter. Especially, the series resonance elements are combined with spur-lines bent by 90 degrees, which makes the port-impedance matched well and eliminates spurious hikes in the stopband, while the overall size remains almost unchanged. The design is carried out by setting up the equivalent circuit and the circuit simulation is checked by the full-wave EM analysis. The structure is manufactured and measured to show that the circuit modeling and EM simulation results agree with the measured data.

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References

  1. S.-S. Lee, et al., "A WiX RF Transceiver for Gbps Wireless Communication," 2011 IEEE International Conference on Consumer Electronics (ICCE 2011), Jan. 2011, pp. 427-428-64.
  2. Y.-C. Chiou, Y.-F. Lee, J.-T. Kuo and C.-C. Chen, "Planar Multimode Resonator Bandpass Filters with Sharp Transition and Wide Stopband," IEEE International Microwave Symposium Digest, 2008, 6, pp. 439-442.
  3. A. Balalem, W. Menzel, J. Machac, and A. Omar, "A Simple Ultra-Wideband Suspended Stripline Bandpass Filter With Very Wide Stop-Band," IEEE Microwave and Wireless Components Letters, 2008, 3, pp. 170-172.
  4. R.C. Allison, "Compact edge coupled filter," United States Patent 6762660 B2, July 2004.
  5. C.-C. Yu, and K. Chang, "Novel compact ellipticfunction narrowband bandpass filters using microstrip open-loop resonators with coupled and crossing lines," IEEE Trans. MTT, 1998, 46, (7), pp. 952-958. https://doi.org/10.1109/22.701448
  6. J. Zhang, J.-Z. Gu, B. Cui, and X.W. Sun, "Compact and harmonic suppression open-loop resonator bandpass filter with tri-section SIR," Prog. Electromagn. Res., 2007, PIER 69, pp. 93-100.
  7. C. Caloz. and T. Itoh,. "Electromagnetic metamaterials: transmission line theory and microwave application" (John Wiley & Sons, 2006).
  8. Marques. R, Martin. F and Sorolla. M., "Metamaterials with negative parameters: theory, design, and microwaves applications" (John Wiley & Sons, 2008).
  9. G. Jang and S. Kahng, "Design of a dual-band metamaterial bandpass filter using zeroth order resonance," Prog. Electromagn. Res. C, 2010, 12, pp. 149-162. https://doi.org/10.2528/PIERC09122001
  10. J. Ju. and S. Kahng, "A compact UWB bandpass filter using a center-tapped composite right/left-handed transmission-line zeroth-order resonator," Microwave and Optical Technology Letters, 2011, 9, pp. 1974-1976.
  11. G. Jang and S. Kahng, "Design of a Metamaterial Bandpass Filter Using the ZOR of a Modified Circular Mushroom Structure," Microwave Journal, 2011, 5, pp. 158-167.
  12. H. Shaman and J. S. Hong, "Input and output crosscoupled wideband bandpass filter," IEEE Trans. Microw. Theory Tech., vol. 55, no. 12, pp. 2562-2568, Dec. 2007. https://doi.org/10.1109/TMTT.2007.910066
  13. Hye-Min Lee, Jung-Hyun Ha, Xu-Guang Wang, Young-Ho Cho and Sang-Won Yun, "Microstrip Bandpass Filter Using Stepped-Impedance Coupled-Line Hairpin Resonators with Enhanced Stopband Performance," Journal of Electromagnetic Engineering And Science, vol. 11, no. 2, pp. 91-96, 2011, 6. https://doi.org/10.5515/JKIEES.2011.11.2.090
  14. V. M. Dabhi and V. V. Dwivedi, "Parallel coupled microstrip bandpass filter designed and modeled at 2 GHz," 2016 International Conference on Signal Processing, Communication, Power and Embedded System (SCOPES), Paralakhemundi, 2016, pp. 461-466.
  15. X.-G. Huang, Q.-Y. Feng, Q.-Y. Xiang and D.-H. Jia., "Design of Bandpass Filter with Transmission Zeros Using Zeroth-order Resonator and U-shaped Resonator," Progress In Electromagnetics Research Symposium Proceedings, Moscow, Russia, August 19-23, 2012, 12, pp. 857-860.
  16. J. Q. Gong and Q. X. Chu, "Miniaturized microstrip bandpass filter using coupled SCRLH zeroth-order resonators," 2009 European Microwave Conference (EuMC), Rome, 2009, pp. 370-373.
  17. V. N. Mishra, R. K. Chaudhary, K. V. Srivastava and A. Biswas, "Compact two pole bandpass filter implemented using via-free composite right/left handed transmission line with radial stubs," 2011 41st European Microwave Conference, Manchester, 2011, pp. 571-574.
  18. J. N. Lee, S. Kahng, G. Jang, J. K. Park, "Three-Channel Output Multiplexer Design Using Band-Pass Filter and Ultra-Wideband Antenna," Journal of Electromagnetic Engineering and Science, vol. 17, no. 2, pp. 111-112, 2017 https://doi.org/10.5515/JKIEES.2017.17.2.e