Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지
DOI QR코드

DOI QR Code

Modified Wilkinson Power Divider Using Transmission Lines for Various Terminated Impedances and an Arbitrary Power Ratio

  • Yoon, Young-Chul (Department of Electronics Engineering, Catholic Kwandong University) ;
  • Kim, Young (School of Electronics Engineering, Kumoh National Institute of Technology)
  • Received : 2018.07.10
  • Accepted : 2018.10.30
  • Published : 2019.01.31
Download PDF
⟨ Previous Next ⟩

Abstract

This paper introduces a modified Wilkinson power divider that uses uniform transmission lines for various terminated impedances and an arbitrary power ratio. For the designed power ratio, the proposed divider changes only the electrical lengths of the transmission lines between the input and output ports, and those between the output ports and the isolation resistor. In this case, even when various termination impedances of the ports exist, the divider characteristics are satisfied. To verify the feasibility of the proposed divider, two circuits were designed to operate at a frequency of 2 GHz with 2:1 and 4:1 power splitting ratios and various terminated impedances of 40, 70, and $60{\Omega}$ for one circuit, and 50, 70, and $60{\Omega}$ for the other. The measurement and simulation results were in good agreement.

Keywords

References

  1. E. J. Wilkinson, "An N-way hybrid power divider," IRE Transaction on Microwave Theory and Techniques, vol. 8, no. 1, pp. 116-118, 1960. https://doi.org/10.1109/TMTT.1960.1124668
  2. U. H. Gysel, "A new N-way power divider/combiner suitable for high-power application," in Proceedings of IEEE MTT-S International Microwave Symposium, Palo Alto, CA, 1975, pp. 116-118.
  3. Y. Kim and Y. C. Yoon, "A modified unequal power divider with a complex isolation component for enhanced isolation," Microwave and Optical Technology Letters, vol. 57, no. 2, pp. 322-324, 2015. https://doi.org/10.1002/mop.28843
  4. A. K. Agrawal and G. F. Mikucki, "A printed circuit hybrid ring directional coupler for arbitrary power divisions," IEEE Transactions on Microwave Theory and Techniques, vol. 34, no. 12, pp. 1401-1407, 1986. https://doi.org/10.1109/TMTT.1986.1133555
  5. H. R. Ahn, I. Wolff, and I. S. Chang, "Arbitrary termination impedances, arbitrary power division and small-sized ring hybrids," IEEE Transactions on Microwave Theory and Techniques, vol. 44, no. 12, pp. 2241-2247, 1997.
  6. H. R. Ahn and I. Wolff, "Three-port 3-dB power divider terminated by different impedances and its application to MMICs," IEEE Transactions on Microwave Theory and Techniques, vol. 47, no. 6, pp. 786-794, 1999. https://doi.org/10.1109/22.769351
  7. K. K. M. Cheng and P. W. Li, "A novel power-divider design with unequal power-dividing ratio and simple layout," IEEE Transactions on Microwave Theory and Techniques, vol. 57, no. 6, pp. 1589-1594, 2009. https://doi.org/10.1109/TMTT.2009.2019997
  8. P. W. Li and K. K. M. Cheng, "A new unequal power-divider design with enhanced insertion loss flatness," IEEE Microwave and Wireless Components Letters, vol. 19, no. 12, pp. 786-788, 2009. https://doi.org/10.1109/LMWC.2009.2033504
  9. Z. Haiwei and X. Quan, "A novel Gysel power divider with arbitrary power ratio for high-power application," in Proceedings of IEEE International Wireless Symposium (IWS), Beijing, China, 2013, pp. 1-4.
  10. Y. Z. Zhu, X. F. Zhang, X. F. Wu, C. Li, and G. Y. Fang, "Novel Wilkinson power divider with uniform impedance line," in Proceedings of Asia-Pacific Microwave Conference (APMC), Macau, China, 2008, pp. 1-4.
  11. S. Horst, R. Bairavasubramanian, M. M. Tentzeris, and J. Papapolymerou, "Modified Wilkinson power dividers for millimeter-wave integrated circuits," IEEE Transactions on Microwave Theory and Techniques, vol. 55, no. 11, pp. 2439-2446, 2007. https://doi.org/10.1109/TMTT.2007.908672
  12. T. Qi, S. He, Z. Dai, and W. Shi, "Novel unequal power divider with 50 $\Omega$ characteristic impedance lines," IEEE Microwave and Wireless Components Letters, vol. 26, no. 3, pp. 180-182, 2016. https://doi.org/10.1109/LMWC.2016.2525817
  13. F. Lin, Q. X. Chu, and S. W. Wong, "A novel Gysel power divider design with uniform impedance transmission lines for arbitrary power-dividing ratios," Journal of Electromagnetic Waves and Applications, vol. 27, no. 2, pp. 242-249, 2013. https://doi.org/10.1080/09205071.2013.743452
  14. M. J. Park and B. Lee, "Design of ring couplers for arbitrary power division with 50 $\Omega$ lines," IEEE Microwave and Wireless Components Letters, vol. 21, no. 4, pp. 185-187, 2011. https://doi.org/10.1109/LMWC.2011.2112341
  15. D. S. Eom and H. Y. Lee, "A broadband half-mode substrate integrated waveguide quadrature Wilkinson power divider using composite right/left-handed transmission line," Journal of Electromagnetic Engineering and Science, vol. 17, no. 1, pp. 9-13, 2017. https://doi.org/10.5515/JKIEES.2017.17.1.9

Cited by

  1. Unbalanced Two-Way Filtering Power Splitter for Wireless Communication Systems vol.10, pp.5, 2019, https://doi.org/10.3390/electronics10050617