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, Volume 109, Issue 3, pp 1571–1579 | Cite as

Design of a Modified Wilkinson Power Divider with Size Reduction and Harmonics Suppression using Triangle-Shaped Resonators

  • Masoud Heydari
  • Parastoo Rostami
  • Saeed RoshaniEmail author


In this study, a miniaturized microstrip Wilkinson power divider (WPD) with harmonic elimination using low pass filter is proposed. In proposed design, two large conventional quarter wavelength transmission lines are replaced with compact low pass filters. Applied low pass filters are consisted of three triangle resonators, which result in harmonics suppression and size reduction of the proposed WPD. The proposed WPD has 56% size reduction compared to the conventional one. The proposed divider correctly works at 2 GHz and suppresses second to eighth harmonics with more than 20 dB attenuation level. According to the experimental results the insertion loss of the proposed design is less than 0.1 dB n pass band. The return losses at all ports and output ports isolation parameters are better than 20 dB and 26 dB, respectively, which shows good performance of the proposed device.


Wilkinson power divider (WPD) Triangle-shaped resonator Harmonic suppression 



  1. 1.
    Tang, C., Lin, X., Fan, Y., & Song, K. (2016). A wideband power divider with bandpass response. International Journal of Microwave and Wireless Technologies,8(3), 583–590.CrossRefGoogle Scholar
  2. 2.
    Burdin, F., Podevin, F., & Ferrari, P. (2016). Flexible and miniaturized power divider. International Journal of Microwave and Wireless Technologies,8(3), 547–557.CrossRefGoogle Scholar
  3. 3.
    Song, K., Zhou, Y., Fan, M., Zhu, Y., & Fan, Y. (2017). Wide-stopband bandpass-filtering power divider with high-frequency selectivity. International Journal of Microwave and Wireless Technologies,9(10), 1931–1936.CrossRefGoogle Scholar
  4. 4.
    Wang, X., Ma, Z., Yoshikawa, M., Kohagura, J., Tokuzawa, T., Kuwahara, D., et al. (2017). Mixed π type structure in Wilkinson power divider design with 3rd harmonic suppression. Microwave and Optical Technology Letters,59(6), 1245–1248.CrossRefGoogle Scholar
  5. 5.
    Gao, S. S., Sun, S., & Xiao, S. (2013). A novel wideband bandpass power divider with harmonic-suppressed ring resonator. IEEE Microwave and Wireless Components Letters,23(3), 119–121.CrossRefGoogle Scholar
  6. 6.
    Hayati, M., Roshani, S., & Roshani, S. (2013). A simple Wilkinson power divider with harmonics suppression. Electromagnetics,33(4), 332–340.CrossRefGoogle Scholar
  7. 7.
    Zhang, J., Li, L., Gu, J., & Sun, X. (2007). Compact and harmonic suppression Wilkinson power divider with short circuit anti-coupled line. IEEE Microwave and Wireless Components Letters,17(9), 661–663.CrossRefGoogle Scholar
  8. 8.
    Woo, D. J., & Lee, T. K. (2005). Suppression of harmonics in Wilkinson power divider using dual-band rejection by asymmetric DGS. IEEE Transactions on Microwave Theory and Techniques,53(6), 2139–2144.CrossRefGoogle Scholar
  9. 9.
    Yang, F. R., Ma, K. P., Qian, Y., & Itoh, T. (1999). A uniplanar compact photonic-bandgap (UC-PBG) structure and its applications for microwave circuit. IEEE Transactions on Microwave Theory and Techniques,47(8), 1509–1514.CrossRefGoogle Scholar
  10. 10.
    Hong, J. S., & Lancaster, M. J. (2001). Microstrip filters for RF/microwave applications. New York: Wiley.CrossRefGoogle Scholar
  11. 11.
    Wang, J., Ni, J., Guo, Y. X., & Fang, D. (2009). Miniaturized microstrip Wilkinson power divider with harmonic suppression. IEEE Microwave and Wireless Components Letters,19(7), 440–442.CrossRefGoogle Scholar
  12. 12.
    Hayati, M., Roshani, S., & Roshani, S. (2013). Miniaturized Wilkinson power divider with nth harmonic suppression using front coupled tapered CMRC. ACES,28(3), 221–227.Google Scholar
  13. 13.
    Karthikeyan, S. S., & Kshetrimayum, R. S. (2011). Compact, harmonic suppressed power divider using open complementary split-ring resonator. Microwave and Optical Technology Letters,53(12), 2897–2899.CrossRefGoogle Scholar
  14. 14.
    Siahkamari, H., Yasoubi, Z., Jahanbakhshi, M., Mousavi, S. M. H., Siahkamari, P., Nouri, M. E., et al. (2018). Design of compact Wilkinson power divider with harmonic suppression using T-shaped resonators. Frequenz,72, 253–259.CrossRefGoogle Scholar
  15. 15.
    He, J., Feng Chen, Z., Hai Yang, B., & Ying Xiong, M. (2012). Miniaturized microstrip Wilkinson power divider with capacitor loading. Microwave and Optical Technology Letters,54(1), 61–63.CrossRefGoogle Scholar

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Young Researchers and Elite Club, Kermanshah BranchIslamic Azad UniversityKermanshahIran
  2. 2.Department of Electrical Engineering, Kermanshah BranchIslamic Azad UniversityKermanshahIran

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