Vol. 106
Latest Volume
All Volumes
PIER 180 [2024] PIER 179 [2024] PIER 178 [2023] PIER 177 [2023] PIER 176 [2023] PIER 175 [2022] PIER 174 [2022] PIER 173 [2022] PIER 172 [2021] PIER 171 [2021] PIER 170 [2021] PIER 169 [2020] PIER 168 [2020] PIER 167 [2020] PIER 166 [2019] PIER 165 [2019] PIER 164 [2019] PIER 163 [2018] PIER 162 [2018] PIER 161 [2018] PIER 160 [2017] PIER 159 [2017] PIER 158 [2017] PIER 157 [2016] PIER 156 [2016] PIER 155 [2016] PIER 154 [2015] PIER 153 [2015] PIER 152 [2015] PIER 151 [2015] PIER 150 [2015] PIER 149 [2014] PIER 148 [2014] PIER 147 [2014] PIER 146 [2014] PIER 145 [2014] PIER 144 [2014] PIER 143 [2013] PIER 142 [2013] PIER 141 [2013] PIER 140 [2013] PIER 139 [2013] PIER 138 [2013] PIER 137 [2013] PIER 136 [2013] PIER 135 [2013] PIER 134 [2013] PIER 133 [2013] PIER 132 [2012] PIER 131 [2012] PIER 130 [2012] PIER 129 [2012] PIER 128 [2012] PIER 127 [2012] PIER 126 [2012] PIER 125 [2012] PIER 124 [2012] PIER 123 [2012] PIER 122 [2012] PIER 121 [2011] PIER 120 [2011] PIER 119 [2011] PIER 118 [2011] PIER 117 [2011] PIER 116 [2011] PIER 115 [2011] PIER 114 [2011] PIER 113 [2011] PIER 112 [2011] PIER 111 [2011] PIER 110 [2010] PIER 109 [2010] PIER 108 [2010] PIER 107 [2010] PIER 106 [2010] PIER 105 [2010] PIER 104 [2010] PIER 103 [2010] PIER 102 [2010] PIER 101 [2010] PIER 100 [2010] PIER 99 [2009] PIER 98 [2009] PIER 97 [2009] PIER 96 [2009] PIER 95 [2009] PIER 94 [2009] PIER 93 [2009] PIER 92 [2009] PIER 91 [2009] PIER 90 [2009] PIER 89 [2009] PIER 88 [2008] PIER 87 [2008] PIER 86 [2008] PIER 85 [2008] PIER 84 [2008] PIER 83 [2008] PIER 82 [2008] PIER 81 [2008] PIER 80 [2008] PIER 79 [2008] PIER 78 [2008] PIER 77 [2007] PIER 76 [2007] PIER 75 [2007] PIER 74 [2007] PIER 73 [2007] PIER 72 [2007] PIER 71 [2007] PIER 70 [2007] PIER 69 [2007] PIER 68 [2007] PIER 67 [2007] PIER 66 [2006] PIER 65 [2006] PIER 64 [2006] PIER 63 [2006] PIER 62 [2006] PIER 61 [2006] PIER 60 [2006] PIER 59 [2006] PIER 58 [2006] PIER 57 [2006] PIER 56 [2006] PIER 55 [2005] PIER 54 [2005] PIER 53 [2005] PIER 52 [2005] PIER 51 [2005] PIER 50 [2005] PIER 49 [2004] PIER 48 [2004] PIER 47 [2004] PIER 46 [2004] PIER 45 [2004] PIER 44 [2004] PIER 43 [2003] PIER 42 [2003] PIER 41 [2003] PIER 40 [2003] PIER 39 [2003] PIER 38 [2002] PIER 37 [2002] PIER 36 [2002] PIER 35 [2002] PIER 34 [2001] PIER 33 [2001] PIER 32 [2001] PIER 31 [2001] PIER 30 [2001] PIER 29 [2000] PIER 28 [2000] PIER 27 [2000] PIER 26 [2000] PIER 25 [2000] PIER 24 [1999] PIER 23 [1999] PIER 22 [1999] PIER 21 [1999] PIER 20 [1998] PIER 19 [1998] PIER 18 [1998] PIER 17 [1997] PIER 16 [1997] PIER 15 [1997] PIER 14 [1996] PIER 13 [1996] PIER 12 [1996] PIER 11 [1995] PIER 10 [1995] PIER 09 [1994] PIER 08 [1994] PIER 07 [1993] PIER 06 [1992] PIER 05 [1991] PIER 04 [1991] PIER 03 [1990] PIER 02 [1990] PIER 01 [1989]
2010-07-09
Ultra Wideband Power Divider Using Tapered Line
By
Progress In Electromagnetics Research, Vol. 106, 61-73, 2010
Abstract
A power divider with ultra-wideband (UWB) performance has been designed. The quarter-wave transformer in the conventional Wilkinson power divider is replaced by an exponentially tapered microstrip line. Since the tapered line provides a consistent impedance transformation across all frequencies, very low amplitude ripple of 0.2 dB peak-to-peak in the transmission coefficient and superior input return loss better than 15 dB are achieved over an ultra-wide bandwidth. Two additional resistors are added along the tapered line to improve the output return loss and isolation. Simulation performed using CST Microwave Studio and measured results confirm the good performance of the proposed circuit. The return loss and the isolation between the output ports are better than 15 dB across the band 2-10.2 GHz. Standard off-the-shelf resistance values can be selected by optimizing the physical locations to mount the resistors. Better performance can be achieved with more isolation resistors added. Hence, the number of isolation resistors to be used may be selected based on the desired bandwidth and level of isolation and return loss specifications.
Citation
Chun Tong Chiang, and Boon-Kuan Chung, "Ultra Wideband Power Divider Using Tapered Line," Progress In Electromagnetics Research, Vol. 106, 61-73, 2010.
doi:10.2528/PIER10061603
References

1. Wilkinson, E. J., "An N-way power divider," IEEE Trans. Microwave Theory Tech., Vol. 8, 116-118, Jan. 1960.
doi:10.1109/TMTT.1960.1124668

2. Cohn, S. B., "A class of broadband three-port TEM-mode hybrids," IEEE Trans. Microwave Theory Tech., Vol. 16, No. 2, 110-116, Feb. 1968.
doi:10.1109/TMTT.1968.1126617

3. Collin, R. E., "Theory and design of wide-band multisection quarter-wave transformers," Proc. IRE, Vol. 43, 179-185, Feb. 1955.
doi:10.1109/JRPROC.1955.278076

4. Cohn, S. B., "Optimum design of stepped transmission-line transformers," IRE Trans. Microwave Theory Tech., Vol. 3, 16-21 , Apr. 1955.
doi:10.1109/TMTT.1955.1124940

5. Nishikawa, K., T. Tokumitsu, and I. Toyoda, "Miniaturized Wilkinson power divider using three-dimensional MMIC technology," IEEE Microw. Guided Wave Lett., Vol. 6, No. 10, 372-374, Oct. 1996.
doi:10.1109/75.536949

6. Lu, L. H., P. Bhattacharya, L. P. B. Katehi, and G. E. Ponchak, "X-band and K-band lumped Wilkinson power dividers with a micro-machined technology," EEE MTT-S Int. Dig., 287-290, 2000.

7. Parisi, S. J., "180° lumped element hybrid," IEEE MTT-S Int. Dig.,, 1243-1246, 1989.
doi:10.1109/MWSYM.1989.38951

8. Chongcheawchamnan, M., N. Siripon, and I. D. Robertson, "Design and performance of improved lumped-distributed Wilkinson divider topology," Electron. Lett., Vol. 37, 501-503, Apr. 2001.
doi:10.1049/el:20010356

9. Scardelletti, M. C., G. E. Ponchak, and T. M. Weller, "Miniaturized Wilkinson power dividers utilizing capacitive loading," IEEE Microw. Wireless Compon. Lett., Vol. 12, No. 1, 6-8, Jan. 2002.
doi:10.1109/7260.975717

10. Huang, W., C. Liu, L. Yan, and K. Huang, "A miniaturized dual-band power divider with harmonic suppression for GSM applications," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 1, 81-91, 2010.
doi:10.1163/156939310790322082

11. Zhang, Z., Y.-C. Jiao, Y. Song, H.-H. Xie, S. Tu, and F. S. Zhang, "A compact 1 to 2 Wilkinson power divider for 2.4GHz/UWB with band-notched characteristic using simple defected ground structure," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 11-12, 1623-1630, 2009.

12. Hosseini, F., M. Khalaj-Amir Hosseini, and M. Yazdani, "A miniaturized Wilkinson power divider using nonuniform transmission line," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 7, 917-924, 2009.
doi:10.1163/156939309788355243

13. Lin, Z. and Q.-X. Chu, "A novel compact UWB power divider for spatial power combining," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 13, 1803-1812, 2009.
doi:10.1163/156939309789566851

14. Wu, Y., Y. Liu, and S. Li, "A new dual-frequency Wilkinson power divider," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 4, 483-492, 2009.
doi:10.1163/156939309787612400

15. Li, X., S.-X. Gong, L. Yang, and Y.-J. Yang, "A novel Wilkinson power divider for dual-band operation," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 2-3, 395-404, 2009.
doi:10.1163/156939309787604346

16. Wu, L., Z. Sun, H. Yilmaz, and M. Berroth, "A dual-frequency Wilkinson power divider," IEEE Trans. Microwave Theory Tech., Vol. 54, No. 1, 278-284, 2006.
doi:10.1109/TMTT.2005.860300

17. Leung, C. and Q. Xue, "A parallel-strip ring power divider with high isolation and arbitrary power-dividing ratio," IEEE Trans. Microwave Theory Tech., Vol. 55, No. 11, 2419-2426, Nov. 2007.

18. Chiu, L., T. Yum, Q. Xue, and C. Chan, "A wideband compact parallel-strip 180° Wilkinson power divider for push-pull circuitries," IEEE Microw. Wireless Compon. Lett., Vol. 16, No. 1, 49-51, 2006.
doi:10.1109/LMWC.2005.859972

19. Goodman, P. C., "A wideband stripline matched power divider," IEEE MTT-S International Microwave Symposium Digest, Vol. 68, No. 1, 16-20, May 1968.

20. Mencia-Oliva, B., A. M. Pelaez-Perez, P. Almorox-Gonzalez, and J. I. Alonso, "New technique for the design of ultra-broadband power dividers based on tapered lines," IEEE/MTT-S International Microwave Symposium, 493-496, Jun. 2009.

21. Zhuanhong, J., Z. Qinglin, and A. Faliang, "A 2-way broad-band microstrip matched power divider," Proceedings of International Conference on Communications, Circuits and Systems, Vol. 4, 2592-2596, Jun. 2006.

22. Abbosh, A. M., "Ultra wideband in-phase power divider for multilayer technology," IET Microwave, Antenna and Propagation, Vol. 3, No. 1, 148-153, 2009.
doi:10.1049/iet-map:20070310

23. Hecken, R. P., "A near-optimum matching section without discontinuities," IEEE Trans. Microwave Theory Tech., Vol. 20, No. 11, 734-739, Nov. 1972.
doi:10.1109/TMTT.1972.1127862

24. Klopfenstein, R. W., "A transmission line taper of improved design," Proceedings IRE, Vol. 44, 31-35, Jan. 1956.
doi:10.1109/JRPROC.1956.274847