A Novel Small-Size Coupled-Line Wilkinson Power Divider for Dual-Band Applications

Abstract:

A novel coupled-line circuit configuration is proposed to design small-size dual-band Wilkinson power dividers. This proposed power divider consists of three sections of coupled lines and two isolation resistors. The analytical design theory is given and the electrical parameters analysis is provided. Six numerical examples are presented to demonstrate the flexible dual-band applications. To avoid a negative isolation resistor, a practical power divider operating at 1GHz and 2.2GHz with two positive-value resistors is designed. The calculated and full-wave simulated results verify our proposed idea. Keywords: Coupled-line, dual-band, power divider.

• Periodical: Applied Mechanics and Materials (Volume 437)
• Pages: 1066-1072
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.437.1066
• Online since: October 2013
• Authors: Wei Min Wang*, Yuan An Liu
• Keywords: Coupled-Line, Dual-Band, Power Divider

References

[1] D. M. Pozar, Microwave Engineering, 2nd ed. New York: Wiley, (1998).

[2] E. Wilkinson, An N-way hybrid power divider, IRE Trans. Microw. Theory Tech., vol. MTT-8, no. 1, pp.116-118, Jan. (1960).

[3] L. Wu, Z. Sun, H. Yilmaz, and M. Berroth, A dual-frequency Wilkinson power divider, IEEE Trans. Microw. Theory Tech., vol. 54, no. 1, pp.278-284, Jan. (2006).

DOI: 10.1109/tmtt.2005.860300

[4] K.K.M. Cheng and C. Law, A novel approach to the design and implementation of dual-band power divider, IEEE Trans. Microw. Theory Tech., vol. 56. no. 2, pp.487-492, Feb. (2008).

DOI: 10.1109/tmtt.2007.914629

[5] M.J. Park, Two-section cascaded coupled line Wilkinson power divider for dual-band applications, IEEE Microw. Wireless Compon. Lett., vol. 19. no. 4, pp.188-190, Apr. (2009).

DOI: 10.1109/lmwc.2009.2015482

[6] W.H. Chen, Y.C. Liu, X. Li, Z.H. Feng, and F.M. Ghannouchi, Design of reduced-size unequal power divider for dual-band operation wtih coulped lines. , Electronics Lett., vol. 47, no. 1, pp.59-60 , Jan. (2011).

DOI: 10.1049/el.2010.2176

[7] Y. Wu, Y. Liu, and Q. X, An analytical approach for a novel coupled-line dual-band Wilkinson power diveder, , IEEE Trans. Microw. Theory Tech., vol. 59, no. 2, pp.286-294, Feb. (2011).

DOI: 10.1109/tmtt.2010.2084096

[8] Y. Wu, W. Sun, S.W. Leung, Y. Diao, and K.H. Chan, A novel compact dual-frequency coulpled-line transformer with simple analytical design equations for frequency-dependent complex load impedanc, , Progress In Electromagnetics Research, vol. 134, pp.47-62, (2013).

DOI: 10.2528/pier12101906

[9] Y. Wu, J.Y. Shen, Y. Liu, S.W. Leung, and Q. Xue, Miniaturized arbitrary phase-difference couplers for arbitrary coupling coefficients, , IEEE Trans. Microw. Theory Tech., vol. 61, no. 6, pp.2317-2013, Jun. (2013).

DOI: 10.1109/tmtt.2013.2259501

[10] R. Mongia, I. Bahl, and P. Bhartia, RF and Microwave Coupled-line Circuits, Boston : Artech House Publishers, (1999).