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A Multi-Band Transformer for Two Arbitrary Complex Frequency-Dependent Impedances

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Abstract

A multi-frequencies transformer for two arbitrary complex frequency-dependent impedances is presented. Design equations of the proposed transformer are derived, and particle swarm algorithm can be used to solve the resulting nonlinear equations. Some numerical examples for two-, three-, and four-section transmission line transformer were presented to verify the validity of the proposed design.

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References

  1. Webb W. (2003) The complete wireless communications professional: A guide for engineers and managers. Artech House, Boston, MA

    Google Scholar 

  2. Chow Y. L., Wan K. L. (2002) A transformer of one-third wavelength in two sections-for a frequency and its first harmonic. IEEE Microwave and Wireless Components Letters 12(1): 22–23

    Article  Google Scholar 

  3. Monzon C. (2002) Analytical derivation of a two-section impedance transformer for a frequency and it first harmonic. IEEE Microwave and Wireless Components Letters 12(10): 381–382

    Article  MathSciNet  Google Scholar 

  4. Monzon C. (2003) A small dual-frequency transformer in two sections. IEEE Transactions on Microwave Theory and Techniques 51(4): 1157–1161

    Article  MathSciNet  Google Scholar 

  5. Colantonio, P., Giannini, F., Scucchia, L. (2004). A newapproach to design matching networks with distributed elements. In Proceedings of the MIKON’04 (Vol. 3, pp. 811–814).

  6. Wu Y., Liu Y., Li S. (2009) A dual-frequency transformer for complex impedances with two unequal sections. IEEE Microwave and Wireless Components Letters 19(2): 77–79

    Article  MATH  Google Scholar 

  7. Liu X., Liu Y. A., Li S. L., Wu F., Wu Y. (2009) A three-section dual-band transformer for frequency-dependent complex load impedance. IEEE Microwave and Wireless Components Letters 19(10): 611–613

    Article  Google Scholar 

  8. Wu Y., Liu Y. A., Li S. L., Yu C. P., Liu X. (2009) A generalized dual-frequency transformer for two arbitrary complex frequency-dependent impedances. IEEE Microwave and Wireless Components Letters 19(12): 611–613

    Article  Google Scholar 

  9. Chongcheawchamnan M., Patisang S., Srisathit S., Phromloungsri R., Bunnjaweht S. (2005) Analysis and design of a three-section transmission-line transformer. IEEE Transactions on Microwave Theory and Techniques 53(7): 2458–2462

    Article  Google Scholar 

  10. Chen, M. (2008). Novel design method of a multi-section transmission-line transformer using genetic algorithm techniques. In 11th international conference on electrical machines and systems, ICEMS 2008, Wuhan, China, Oct. 17–20.

  11. Chen M. (2011) A three-frequency transformer for complex impedances with three-section. Chinese Journal of Electronics 20: 343–346

    Google Scholar 

  12. Kurokawa K. (1965) Power waves and the scattering matrix. IEEE Transactions on Microwave Theory and Techniques MTT-13(3): 194–202

    Article  Google Scholar 

  13. Kennedy, J., Eberhart, R. (1995). Particle swarm optimization. In Proceedings IEEE international conference on neural networks (Vol. IV, pp 1942–1948). Perth, Australia, November/December 1995.

  14. Eberhart, R. C., Shi, Y. (2001). Particle swarm optimization: Developments, applications and resources. In Proceedings congress on evolutionary computation (pp 81–86), Seoul, Korea.

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Authors and Affiliations

  1. Institute of Microwave and Optics, Xi’an University of Posts and Telecommunications, Wei Guo Road, Chang’an District, Xi’an, 710121, China

    Ming Chen

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  1. Ming Chen
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Correspondence to Ming Chen.

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Chen, M. A Multi-Band Transformer for Two Arbitrary Complex Frequency-Dependent Impedances. Wireless Pers Commun 68, 981–991 (2013). https://doi.org/10.1007/s11277-011-0494-1

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  • DOI: https://doi.org/10.1007/s11277-011-0494-1

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