volume | PIER Journals

Abstract

A novel 180˚ out-of-phase power divider based on stepped-impedance slotline is presented in this article. This power divider employs one T-junction formed by microstrip line and slotline to obtain two out-of-phase dividing signals. Stepped-impedance slotline and lumped resistor are introduced to improve the isolation between output ports. The experimental data show that the proposed power divider has good performance on insertion loss, return losses, isolation, phase balance, as well as group delay over the wide band 5 GHz-10 GHz.

1. Wang, X., I. Sakagami, N. Ito, and A. Mase, "Miniaturised horst-type Wilkinson power divider with simple layout," Electron. Lett., Vol. 49, No. 6, 384-385, 2013.
doi:10.1049/el.2013.0222 Google Scholar

2. Chiu, L., T. Y. Yum, Q. Xue, and C. H. 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 Google Scholar

3. Wei, F., L. Chen, X.-W. Shi, Q.-Y. Wu, and Q.-L. Huang, "Design of compact UWB power divider with one narrow notch-band," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 17-18, 2343-2352, 2010.
doi:10.1163/156939310793675637 Google Scholar

4. Chau, W.-M., K.-W. Hsu, and W.-H. Tu, "Filter-based Wilkinson power divider," IEEE Microw. Wireless Compon. Lett., Vol. 24, No. 4, 239-241, 2014.
doi:10.1109/LMWC.2014.2299543 Google Scholar

5. Chau, W.-M., K.-W. Hsu, and W.-H. Tu, "Wide-stopband Wilkinson power divider with bandpass response," Electron. Lett., Vol. 50, No. 1, 39-40, 2014.
doi:10.1049/el.2013.3264 Google Scholar

6. Bialkowski, M. E. and A. M. Abbosh, "Design of a compact UWB out-of-phase power divider IEEE Microw. Wireless Compon. Lett.,", Vol. 17, No. 4, 289-291, 2007. Google Scholar

7. Li, Q., X.-W. Shi, F. Wei, and J.-G. Gong, "A novel planar 180˚ out-of-phase power divider for UWB application," Journal of Electromagnetic Waves and Applications, Vol. 25, No. 1, 161-167, 2011.
doi:10.1163/156939311793898288 Google Scholar

8. Bialkowski, M. E. and Y.-F. Wang, "Design of UWB uniplanar 180˚ hybrid employing ground slots and microstrip-slot transitions," International Conference on Microwave Radar and Wireless Communications, 14-16, 2010. Google Scholar

9. Cohn, S. B., "Slot line on a dielectric substrate," IEEE Trans. Microw. Theory Tech., Vol. 17, No. 10, 768-778, 1969.
doi:10.1109/TMTT.1969.1127058 Google Scholar

10. Knorr, J. B., "Slot-line transitions," IEEE Trans. Microw. Theory Tech., Vol. 22, No. 5, 1974.
doi:10.1109/TMTT.1974.1128278 Google Scholar

11. Schuppert, B., "Microstrip/slotline transitions: Modeling and experimental investigation," IEEE Trans. Microw. Theory Tech., Vol. 36, No. 8, 1988. Google Scholar

12. Zinieris, M. M., R. Sloan, and L. E. Davis, "A broadband microstrip-to-slot-line transition," Microw. Opt. Tech. Lett., Vol. 18, No. 5, 1998.
doi:10.1002/(SICI)1098-2760(19980805)18:5<339::AID-MOP9>3.0.CO;2-9 Google Scholar

13. U-yen, K. and E. J. Wollack, "Slotline stepped circular rings for low-loss microstrip-to-slotline transitions," IEEE Microw. Wireless Compon. Lett., Vol. 17, No. 2, 2007.
doi:10.1109/LMWC.2006.890328 Google Scholar

14. Bialkowski, M. E., A. M. Abbosh, and N. Seman, "Compact microwave six-port vector voltmeters for ultra-wideband applications," IEEE Trans. Microw. Theory Tech., Vol. 55, No. 10, 2216-2223, 2007.
doi:10.1109/TMTT.2007.906539 Google Scholar

15. Seman, N., M. E. Bialkowski, and W. C. Khor, "Ultra wideband vias and power dividers in microstrip-slot technology," Proceedings of Asia-Pacific Microwave Conference 2007, 11-14, 2007. Google Scholar

16. Song, K.-J. and Q. Xue, "Ultra-wideband out-of-phase power divider using multilayer microstrip-slotline coupling structure," Microw. Opt. Tech. Lett., Vol. 52, No. 7, 1591-1594, 2010.
doi:10.1002/mop.25274 Google Scholar

17. Abbosh, A. M., "Broadband multilayer inphase power divider for C-band applications," Electron. Lett., Vol. 44, No. 2, 120-121, 2008.
doi:10.1049/el:20083013 Google Scholar

18. Wei, F., W.-T. Li, X.-W. Shi, and Y.-Y. Wang, "Design of compact inphase power divider with one narrow notch band for UWB application," Electron. Lett., Vol. 48, No. 3, 166-168, 2012.
doi:10.1049/el.2011.3434 Google Scholar

19. Song, K.-J. and Q. Xue, "Novel ultra-wideband (UWB) multilayer slotline power divider with bandpass response," IEEE Microw. Wireless Compon. Lett., Vol. 20, No. 1, 13-15, 2010.
doi:10.1109/LMWC.2009.2035951 Google Scholar

20. Chen, J.-X., C. H. K. Chin, K. W. Lau, and Q. Xue, "180˚ out-of-phase power divider based on double-sided parallel striplines," Electron. Lett., Vol. 42, No. 21, 1229-1230, 2006.
doi:10.1049/el:20061767 Google Scholar

21. Yang, T., J.-X. Chen, and Q. Xue, "Three-way out-of-phase power divider," Electron. Lett., Vol. 44, No. 7, 482-483, 2008.
doi:10.1049/el:20080258 Google Scholar

22. Lee, C.-H., C.-I. G. Hsu, and C.-J. Chen, "Band-notched balanced UWB BPF with stepped-impedance slotline multi-mode resonator," IEEE Microw. Wireless Compon. Lett., Vol. 22, No. 4, 182-184, 2012.
doi:10.1109/LMWC.2012.2188019 Google Scholar

23. Li, Z.-P., L.-J. Zhang, T. Su, and C.-H. Liang, "A compact microstrip quadruplexer using slotline stepped impedance stub loaded resonators," Progress In Electromagnetics Research, Vol. 140, 509-522, 2013.
doi:10.2528/PIER13042105 Google Scholar

24. Wen, P.-H., C.-I. G. Hsu, C.-H. Lee, and H.-H. Chen, "Design of balanced and balun diplexers using stepped-impedance slot-line resonators," Journal of Electromagnetic Waves and Applications, Vol. 28, No. 6, 700-715, 2014.
doi:10.1080/09205071.2014.885398 Google Scholar

25. Sagawa, M., M. Makimoto, and S. Yamashita, "Geometrical structures and fundamental characteristics of microwave stepped-impedance resonators," IEEE Trans. Microw. Theory Tech., Vol. 45, No. 7, 1078-1085, 1997.
doi:10.1109/22.598444 Google Scholar

Dr. Long Xiao

Dr. Hao Peng

Dr. Tao Yang

Dr. Jun Dong