volume | PIER Journals

Abstract

This paper presents a novel quad-band power divider with equal power division ratio. The proposed power divider is realized using two cascaded sections of dual-band transformers based on coupled microstrip lines. Limitations of using dual-band quarter-wavelength transformers based on coupled lines are studied through parametric analysis to obtain useful design guidelines related to available fabrication facilities. General closed-form expressions are used to calculate design parameters. To verify analysis and design methodologies, a prototype of quad-band equal power divider is proposed. Compared to conventional quad-band power dividers using sections of transmission line transformers the proposed power divider records a size reduction of about 20% and reduced parasitic effects at higher frequencies according to the usage of only two resistors instead of four with much smaller ohmic values. In addition, a quad-band power divider is proposed, fabricated and measured for 3G and 4G applications at 2.1, 2.5, 3.5, and 3.8 GHz frequencies. Measured and simulated data are in very good match which validates the novel design.

1. Karthikeyan, S. S. and R. S. Kshetrimayum, "Compact, harmonic suppressed power divider using open complementary split-ring resonator," Microwave and Optical Technology Letters, Vol. 53, No. 12, 2897-2899, Dec. 2011.
doi:10.1002/mop.26393

2. Elez, A. V., P. V. Elez, J. Bonache, and F. Martin, "Compact power dividers with filtering capability for ground penetrating RADAR applications," Microwave and Optical Technology Letters, Vol. 54, No. 3, 608-611, Mar. 2012.
doi:10.1002/mop.26605

3. Mitu, S. S. I., S. L. Taiwo, and M. Sharawi, "Aperture stacked microstrip equal/unequal power divider," Microwave and Optical Technology Letters, Vol. 54, No. 3, 784-785, Mar. 2012.
doi:10.1002/mop.26669

4. Ahmed, O. M. H., A. Elboushi, A.-R. Sebak, and T. A. Denidni, "Numerical and experimental investigations of defected ground triangular-shaped power divider for C-band applications," Mi- crowave and Optical Technology Letters, Vol. 54, No. 4, 1022-1028, Apr. 2012.
doi:10.1002/mop.26685

5. He, J., Z. F. Chen, B. H. Yang, and M. Y. Xiong, "Miniaturized microstrip Wilkinson power divider with capacitor loading," Microwave and Optical Technology Letters, Vol. 54, No. 1, 61-63, Jan. 2012.
doi:10.1002/mop.26484

6. Zhou, B., W. Sheng, and H. Wang, "Harmonics suppression of Wilkinson power divider using bond wires with adjustable rejection bands," Microwave and Optical Technology Letters, Vol. 54, No. 3, 775-777, Mar. 2012.
doi:10.1002/mop.26662

7. Zhuge, C., K. Song, and Y. Fan, "Ultra-wideband (UWB) power divider based on signal interference techniques,", Vol. 54, No. 4, 1028-1030, Apr. 2012.
doi:10.1002/mop.26745

8. Ibrahim, S. Z., M. E. Bialkowski, and A. M. Abbosh, "Ultra wideband quadrature power divider employing double wireless via," Microwave and Optical Technology Letters, Vol. 54, No. 2, 300-305, Feb. 2012.
doi:10.1002/mop.26519

9. Li, B., X. Wu, N. Yang, and W. Wu, "Dual-band equal/unequal Wilkinson power divider based on coupled-line section with short-circuited stub," Progress In Electromagnetics Research, Vol. 111, 163-178, 2011.
doi:10.2528/PIER10110108

10. Shamaileh, K., A. Qaroot, and N. Dib, "Non-uniform transmission line transformers and their application in the design of compact multi-band power dividers," Progress In Electromagnetics Research, Vol. 113, 269-284, 2011.

11. Shamaileh, K., A. Qaroot, N. Dib, and A. Sheta, "Design and analysis of multi-frequency Wilkinson power dividers using non-unifor transmission lines," International Journal of RF and Microwave Computer-aided Engineering, Vol. 21, No. 5, 526-533, Jan. 2011.
doi:10.1002/mmce.20538

12. Bao, X. L., G. Ruvio, and M. J. Ammann, "Directional dual-band slot antenna with dual bandgap high impedance surface reflector," Progress In Electromagnetics Research C, Vol. 9, 1-11, 2009.
doi:10.2528/PIERC09051505

13. Srisathit, S., S. Vimnphun, K. Bandudej, M. Chongcheawchanman, and A. Worapishet, "A dual-band 3-dB three-port power divider based on a two-section transmission line transformer," IEEE MTT-S Int. Microwave Symposium Digest, Vol. 1, 35-38, 2003.

14. Wu, L., Z. Sun, H. Yilmaz, and M. Berroth, "A dual-frequency Wilkinson power divider," IEEE Transaction on Microwave Theory and Techniques, Vol. 54, No. 1, 278-284, 2006.
doi:10.1109/TMTT.2006.884655

15. Kampitaki, D. G., A. T. Hatzigaidas, A. I. Papastergiou, and Z. D. Zaharis, "On the design of a dual-band unequal power divider useful for mobile communications," Electronic Engineering, Vol. 89, 443-450, 2007.
doi:10.1007/s00202-006-0024-4

16. Cheng, K. M. and C. Law, "A novel approach to the design and implementation of dual-band power divider," IEEE Transaction on Microwave Theory and Techniques, Vol. 56, No. 2, 487-491, Feb. 2008.
doi:10.1109/TMTT.2007.914629

17. Monzon, C., "A small dual frequency transformer in two sections," IEEE Trans. Microwave Theory and Technique, Vol. 51, No. 4, 1157-1161, 2003.
doi:10.1109/TMTT.2003.809675

18. Chongcheawchamnan, M., S. Patisang, S. Srisathit, R. Phrom- loungsri, and S. Bunnjwaht, "Analysis and design of three section transmission line transformer," IEEE Transaction on Microwave Theory and Techniques, Vol. 53, No. 7, 2458-2462, 2005.
doi:10.1109/TMTT.2005.850408

19. Jwaied, H., F. Muwanes, and N. Dib, "Analysis and design of quad band four sections transmission line impedance transformer," Aces Journal, Vol. 22, No. 3, 381-387, 2007.

20. Dib, N. and M. Khodier, "Design and optimization of multi-band Wilkinson power divider," International Journal of RF and Microwave-aided Engineering Wireless and Optical Communications, 14-20, Sep. 2007.

21. Wang, X.-H., X. Chen, X.-W. Shi, F. Wei, and Y. Bai, "A novel planar three-way tri band power divider," Microwave and Optical Technology Letters, Vol. 52, No. 1, 182-184, Jan. 2010.
doi:10.1002/mop.24858

22. Jwaid, H., F. Muwanes, and N. Dib, "Design and analysis of quad-band Wilkinson power divider," International Journal on Wireless and Optical Communications, Vol. 4, No. 3, 305-312, 2007.
doi:10.1142/S0219799507000680

23. Mohra, A. S. and M. A. Alkanhal, "Dual band Wilkinson power divider using T-sections," Journal of Microwave and Optoelectronics and Electromagnetic Applications, Vol. 7, No. 2, 83-90, Dec. 2008.

24. Wu, Y., Y. Liu, and S. Li, "A compact pi-structure dual band transformer," Progress In Electromagnetics Research, Vol. 88, 121-134, 2008.
doi:10.2528/PIER08102601

25. Jrad, A., T. Safarjalani, J.-M. Duchamp, P. Ferrari, and A. El-Helwani, "The three symmetric power divider ports, compact, fixed, and tunable based on microstrip technology," Microwave and Optical Technology Letters, Vol. 51, No. 1, 229-232, Jan. 2009.
doi:10.1002/mop.24005

26. Wu, Y., Y. Liu, S. Li, and C. Yu, "Novel pi-type stepped-impedance stub branch line and its application to power divider with high suppression of intermediate frequencies," Microwave and Optical Technology Letters, Vol. 53, No. 10, 2360-2363, Oct. 2011.
doi:10.1002/mop.26266

27. Yang, T., C. Liu, L. Yan, and K. Huang, "A compact dual band power divider using planar artificial transmission lines For GSM/DCS applications," Progress In Electromagnetics Research Letters, Vol. 10, 185-191, 2009.
doi:10.2528/PIERL09073107

28. Chen, C.-C., H.-T. Sun, and Y.-R. Chen, "A novel unequal-power divider based on synthetic quasi-TEM transmission line design," Microwave and Optical Technology Letters, Vol. 54, No. 2, 535-539, Feb. 2012.
doi:10.1002/mop.26582

29. Russo, I., L. Boccia, G. Amendola, and H. Schumacher, "Compact hybrid coaxial architecture for UWB quasi-optical power combiners," Progress In Electromagnetics Research, Vol. 122, 77-92, 2012.
doi:10.2528/PIER11101704

30. Wu, Y.-L., H. Zhou, Y.-X. Zhang, and Y.-A. Liu, "An unequal Wilkinson power divider for a frequency and its first harmonic," IEEE Microwave and Wireless Components Letters, Vol. 18, No. 11, 737-739, 2008.
doi:10.1109/LMWC.2008.2005226

31. Wu, Y., Y. Liu, and S. Li, "An unequal dual frequency Wilkinson power divider with optional isolation structure," Progress In Electromagnetics Research, Vol. 91, 393-411, 2009.
doi:10.2528/PIER09030501

32. Wu, Y., Y. Liu, Y. Zhang, J. Gao, and H. Zhou, "A dual band unequal Wilkinson power divider without reactive components," IEEE Transaction on Microwave Theory and Techniques, Vol. 57, No. 1, 216-222, Jan. 2009.
doi:10.1109/TMTT.2008.2008981

33. Kim, T. G., B. Lee, and M.-J. Park, "Dual band unequal Wilkinson power divider with reduced length," Microwave and Optical Technology Letters, Vol. 52, No. 5, 1187-1190, May 2010.
doi:10.1002/mop.25119

34. Lin, Z. and Q.-X. Chu, "A novel approach to the design of dual-band power divider with variable power division ratio based on coupled lines," Progress In Electromagnetics Research, Vol. 103, 271-284, 2010.
doi:10.2528/PIER10012202

35. Monjia, R., I. Bahl, and B. Bhartia, RF and Microwave Coupled Line Circuits, Artech House, 1999.

36. Matthaei, G. L., L. Young, and E. M. T. Jones, Microwave Filters, Impedance-matching Networks, and Coupling Structures, No. 7, 779, Artech House Inc., 1980.

Prof. Ayman Mohamed Elsayed El-Tager

Mr. Abdelrahman Mohamed El-Akhdar

Professor Hadia El-Hennawy