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Microstrip Diplexer Using Stepped Impedance Resonators

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Abstract

In this paper, a compact diplexer based on coupled stepped impedance resonators (SIRs) is designed for Digital Communication System and the industrial, scientific and medical applications. The diplexer is composed from two band-pass filters operated at 1.8 and 2.45 GHz respectively. The size and the position of the SIR and the feed lines are determined through the theoretical design and the simulation. The diplexer has less than 2.2 dB insertion loss and more than 21 dB of isolation. The diplexer performances are investigated numerically by using Momentum ADS Agilent and CST microwave software. The electromagnetic simulated results of the proposed diplexer show a good agreement with the measured results.

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References

  1. Pozar, D. M. (1998). Microwave engineering. London: Wiley.

    Google Scholar 

  2. Srisathit, S., Patisang, S., Phromloungsri, R., Bunnjaweht, S., Kosulvit, S., & Chongcheawchamnan, M. (2005). High isolation and compact size microstrip hairpin diplexer. IEEE Microwave and Wireless Components Letters, 15(2), 101–103.

    Article  Google Scholar 

  3. Hong, J. S., Shaman, H., & Chun, Y.-H. (2007). Dual-mode microstrip open-loop resonators and filters. IEEE Transactions on Microwave Theory and Techniques, 55(8), 1764–1770.

    Article  Google Scholar 

  4. Konpang J. (2009). A compact diplexer using square open loop with stepped impedance resonators. In Radio and wireless symposium, 2009. RWS ‘09. IEEE, 18–22 Jan 2009 (pp. 91–94).

  5. Yang, T., Chi, P. L., & Itoh, T. (2010). High isolation and compact diplexer using the hybrid resonators. IEEE Radio Wireless Components Letters, 20(10), 551–553.

    Article  Google Scholar 

  6. Sheta, F., Coupez, J. P., Tanné, G., Toutain, S., & Bolt, J. P. (1996). Miniature microstrip stepped impedance resonator bandpass filters and diplexers for mobile communications. In 1996 IEEE MTT-S digest, WE2C-2 (pp. 607–610).

  7. Chen, C. F., Huang, T. Y., Chou, C. P., & Wu, R. B. (2006). Microstrip diplexers design with common resonator sections for compact size, but high isolation. IEEE Transactions on Microwave Theory and Techniques, 54, 1945–1952.

    Article  Google Scholar 

  8. Choi, W. W., & Tam, K. W. A microstrip SIR dual-mode bandpass filter with simultaneous size reduction and spurious responses suppression. In IEEE MTT-S international microwave workshop series on art of miniaturizing RF and microwave passive components, Chengdu, China, 2008.

  9. Tang, C.-W., & Liang, H.-H. (2005). Parallel-coupled stacked SIRs bandpass filters with open-loop resonators for suppression of spurious responses. IEEE Microwave and Wireless Components Letters, 15, 802–804.

    Article  Google Scholar 

  10. Makimoto, M., & Yamashita, S. (1980). Bandpass filters using parallel-coupled stripline stepped-impedance resonators. IEEE Transactions on Microwave Theory and Techniques, 28, 1413–1417.

    Article  Google Scholar 

  11. Quendo, C., Rius, E., & Person, C. (2004). Narrow bandpass filters using dual behavior resonators (DBRs) based on stepped impedance stubs and differents-length stubs. IEEE Transactions on Microwave Theory and Techniques 52(3), 1034–1044.

  12. Sugchai, T., Rattapon, J., & Sommart, K. (2012). A design of wide-stopband microstrip diplexers with multiorder spurious-mode suppression using stepped-impedance resonators. In IEEE engineering and technology (S-CET), 2012 Spring Congress, 27–30 May 2012.

  13. Puttadilok, D., Eungdamrong, D., & Amornsaensak, S. (2008). A microstrip diplexer filter using stepped-impedance resonators. In IEEE SICE annual conference, 20–22 Aug 2008.

  14. Lin, S.-C., Deng, P.-H., Lin, Y.-S., Wang, C.-H., & Chen, C. H. (2006). Wide-stopband microstrip bandpass filters using dissimilar quarter-wavelength stepped-impedance resonators. IEEE Transactions on Microwave Theory and Techniques, 54, 1011–1018.

    Article  Google Scholar 

  15. Wang, H., & Zhu, L. Microstrip bandpass filters with ultra-broad rejection band using stepped impedance resonator and high-impedance transformer. In IEEE MTT-S international microwave symposium digest (pp. 683–686). Long Beach, USA, June 2005.

  16. Chang, K., & Hsieh, L. H. (2004). Microwave ring circuits and related structures. London: Wiley-IEEE.

    Book  Google Scholar 

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Acknowledgments

We thank Mr. Mohamed Latrach Professor in ESEO, engineering institute in Angers, France, and Pr. Angel Mediavilla from DICOM CANTABRIA university, for allowing us to use all the equipment available in there laboratories.

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Authors and Affiliations

  1. LITEN Laboratory, FPK/FST of Settat, Hassan 1st University, Settat, Morocco

    Abdessamed Chinig, Jamal Zbitou, Ahmed Errkik, Abdelali Tajmouati & Larbi El Abdellaoui

  2. Microwave Group, ESEO, Angers, France

    Mohamed Latrach

  3. Microwave Group, INPT, Rabat, Morocco

    Abdelwahed Tribak

Authors
  1. Abdessamed Chinig
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  2. Jamal Zbitou
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  3. Ahmed Errkik
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  4. Abdelali Tajmouati
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  5. Larbi El Abdellaoui
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  6. Mohamed Latrach
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  7. Abdelwahed Tribak
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Correspondence to Abdessamed Chinig.

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Chinig, A., Zbitou, J., Errkik, A. et al. Microstrip Diplexer Using Stepped Impedance Resonators. Wireless Pers Commun 84, 2537–2548 (2015). https://doi.org/10.1007/s11277-015-2718-2

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  • DOI: https://doi.org/10.1007/s11277-015-2718-2

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