A BALANCED-TO-SINGLE-ENDED WILKINSON POWER DIVIDER

Authors

  • Zhen Yang
  • Weiguo Liu
  • Chen Miao
  • Xin-an Yuan
  • Wen Wu

DOI:

https://doi.org/10.1590/2179-10742017v16i3924

Keywords:

balanced circuit, power divider, mixed-mode S-matrix

Abstract

A balanced-to-single-ended (BTSE) Wilkinson power divider of planar microstrip structure is proposed in this paper. It has a balanced input and two single-ended outputs. Cascade of a balun and a conventional power divider can be replaced by this proposed structure. Based on mixed-mode S-matrix, admittance matrix and ABCD matrix, the critical parameters are determined. The four-port network is analyzed by simplifying it to two-port network with other ports matched at the central frequency. Then the key parameters are derived and the impact of a freely selected variable on the bandwidth is also discussed. An example of 2.4GHz BTSE power divider is designed. The simulated and measured results show the effectiveness of the method: differential-mode transmissions are better than -3.25dB, common-mode transmissions are lower than -28.6dB, common-mode return loss is -0.10dB, differential-mode return loss and isolation is lower than -23.7dB. While the operating bandwidth is 20%.

References

[1] J. W. May and G. M. Rebeiz, A 40-50 GHz SiGe 1:8 differential power divider using shielded broadside-coupled
striplines[J], IEEE Transactions on Microwave Theory and Techniques, Jul. 2008, 1575–1581,
[2] B Xia, L S Wu, and J F Mao. A new balanced-to-balanced power divider/combiner[J], IEEE Trans. Microw. Theory
Techn, Sep. 2012: 287–295.
[3] M J Park. Comments on ‘A new balanced-to-balanced power divider/combiner’ [J], IEEE Transactions on Microwave
Theory and Techniques, Feb. 2013, 1000-1000.
[4] B Xia, L S Wu, and J F Mao. Authors’ reply[J], IEEE Transactions on Microwave Theory and Techniques, Feb. 2013,
1001–1003.
[5] L.S. Wu, B. Xia, and J. F. Mao. A half-mode substrate integrated waveguide ring for two-way power division of
balanced circuit[J], IEEE Microw.Wireless Compon. Lett. , Jul. 2012: 333–335.
[6] B. Xia, L.-S. Wu, and J. F. Mao. A Balanced-to-Balanced Power Divider With Arbitrary Power Division[J], IEEE
Transactions on Microwave Theory and Techniques, Aug. 2013, 2831-2840.
[7] B Xia and J F Mao, A new dual-band balanced-to-balanced power divider[J], Progr. Electromagn, Jan. 2013, 53–66.
[8] S. B. Grković, "Small balanced antennas for Bluetooth applications," MELECON 2014 - 2014 17th IEEE
Mediterranean Electrotechnical Conference, Beirut, 2014, pp. 91-96.
[9] A. R. Ghorbani and M. B. Ghaznavi-Ghoushchi, "A 35.6dB, 43.3% PAE class E differential power amplifier in 2.4GHz
with cross coupling neutralization for IoT applications," 2016 24th Iranian Conference on Electrical Engineering
(ICEE), Shiraz, 2016, pp. 490-495.
[10] L S Wu, Y X Guo, J F Mao. A New Balanced-to-Single-Ended (BTSE) Power Divider[J], Wireless Symposium (IWS),
2014 IEEE International, March 2014, 1 – 4.
[11] K. Xu, J. Shi, L. Lin, and J.-X. Chen, "A Balanced-to-Unbalanced Microstrip Power Divider With Filtering Function,"
IEEE Trans. Microw. Theory Techn., vol. 63, no. 8, Aug. 2015, pp. 2561 – 2569.
[12] CHEN Yin-chao, YANG Shu-hui. Mixed mode S-parameters for applications of RF differential networks[J], Journal of
Beijing Information Science and Technology University, 2009, 24(2):37-44.

Downloads

Published

2017-08-01

How to Cite

Zhen Yang, Weiguo Liu, Chen Miao, Xin-an Yuan, & Wen Wu. (2017). A BALANCED-TO-SINGLE-ENDED WILKINSON POWER DIVIDER. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 16(3), 777–784. https://doi.org/10.1590/2179-10742017v16i3924

Issue

Section

Regular Papers