Search search
Publication Date
to
Vol. 55
Latest Volume
All Volumes
PIERL 131 PIERL 130 PIERL 129 PIERL 128 PIERL 127 PIERL 126 PIERL 125 PIERL 124 PIERL 123 PIERL 122 PIERL 121 PIERL 120 PIERL 119 PIERL 118 PIERL 117 PIERL 116 PIERL 115 PIERL 114 PIERL 113 PIERL 112 PIERL 111 PIERL 110 PIERL 109 PIERL 108 PIERL 107 PIERL 106 PIERL 105 PIERL 104 PIERL 103 PIERL 102 PIERL 101 PIERL 100 PIERL 99 PIERL 98 PIERL 97 PIERL 96 PIERL 95 PIERL 94 PIERL 93 PIERL 92 PIERL 91 PIERL 90 PIERL 89 PIERL 88 PIERL 87 PIERL 86 PIERL 85 PIERL 84 PIERL 83 PIERL 82 PIERL 81 PIERL 80 PIERL 79 PIERL 78 PIERL 77 PIERL 76 PIERL 75 PIERL 74 PIERL 73 PIERL 72 PIERL 71 PIERL 70 PIERL 69 PIERL 68 PIERL 67 PIERL 66 PIERL 65 PIERL 64 PIERL 63 PIERL 62 PIERL 61 PIERL 60 PIERL 59 PIERL 58 PIERL 57 PIERL 56 PIERL 55 PIERL 54 PIERL 53 PIERL 52 PIERL 51 PIERL 50 PIERL 49 PIERL 48 PIERL 47 PIERL 46 PIERL 45 PIERL 44 PIERL 43 PIERL 42 PIERL 41 PIERL 40 PIERL 39 PIERL 38 PIERL 37 PIERL 36 PIERL 35 PIERL 34 PIERL 33 PIERL 32 PIERL 31 PIERL 30 PIERL 29 PIERL 28 PIERL 27 PIERL 26 PIERL 25 PIERL 24 PIERL 23 PIERL 22 PIERL 21 PIERL 20 PIERL 19 PIERL 18 PIERL 17 PIERL 16 PIERL 15 PIERL 14 PIERL 13 PIERL 12 PIERL 11 PIERL 10 PIERL 9 PIERL 8 PIERL 7 PIERL 6 PIERL 5 PIERL 4 PIERL 3 PIERL 2 PIERL 1
All Journals
PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2015-08-27
Design of Planar Dual-Band Branch-Line Coupler with Π-Shaped Coupled Lines
By
Yu Cao,

    Dr. Yu Cao

    Hangzhou Dianzi University

    Hangzhou

    Homepage

Jincai Wen,

    Dr. Jincai Wen

    Key Laboratory of RF Circuits and Systems, Education Ministry

    Hangzhou Dianzi University

    China

    Homepage

Hui Hong,

    Dr. Hui Hong

    Key Laboratory of RF Circuits and Systems, Education Ministry

    Hangzhou Dianzi University

    China

    Homepage

Jun Liu

    Dr. Jun Liu

    Key Laboratory of RF Circuits and Systems, Education Ministry

    Hangzhou Dianzi University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 55, 113-120, 2015
doi:10.2528/PIERL15061902 | Google Scholar

Abstract
In this paper, a planar microstrip branch-line coupler is designed to have dual-band operation. A Pi-typed structure is used in place of the conventional quarter wavelength transmission line for dual-band application. This structure consists of a pair of coupled line in which one has two ends while the other has open stubs attached to its two ends, and its circuit parameters are determined by the transmission line theory. Explicit design equations are derived using ABCD-matrix. For verification, a 3-dB branch line coupler with operating frequencies of 900 MHz and 3.5 GHz is fabricated and measured on an FR-4 printed circuit board (PCB). The simulated and measured results are in good agreement with each other.
Download Full Article (1051) View Full Article volume
Citation
Yu Cao, Jincai Wen, Hui Hong, and Jun Liu, "Design of Planar Dual-Band Branch-Line Coupler with Π-Shaped Coupled Lines," Progress In Electromagnetics Research Letters, Vol. 55, 113-120, 2015.
doi:10.2528/PIERL15061902
References

1. Chang, S.-F., Y.-H. Jeng, and J.-L. Chen, "Dual-band step-impedance bandpass filter for multimode wireless LANs," Electronics Letters, Vol. 40, 38-39, 2004.
doi:10.1049/el:20040065        Google Scholar

2. Fan, J.-W., C.-H. Liang, and D. Li, "Design of cross-coupled dual-band filter with equal-length split-ring resonators," Progress In Electromagnetics Research, Vol. 75, 285-293, 2007.
doi:10.2528/PIER07060904        Google Scholar

3. Kamma, A., G. S. Reddy, R. S. Parmar, and J. Mukherjee, "Dual-band filter for WIMAX and WLAN with improved upper stop band performance," Progress In Electromagnetics Research C, Vol. 50, 131-138, 2014.
doi:10.2528/PIERC14042601        Google Scholar

4. Park, M.-J. and B. Lee, "Wilkinson power divider with extended ports for dual-band operation," Electronics Letters, Vol. 44, 916-917, 2008.
doi:10.1049/el:20080821        Google Scholar

5. Tang, X. and K. Mouthaan, "Compact dual-band power divider with single allpass coupled lines sections," Electronics Letters, Vol. 46, 688-689, 2010.
doi:10.1049/el.2010.3579        Google Scholar

6. Lin, F., Q.-X. Chu, and S. W. Wong, "Dual-band planar crossover with two-section branch-line structure," IEEE Transactions on Microwave Theory and Techniques, Vol. 61, 2309-2316, 2013.
doi:10.1109/TMTT.2013.2261084        Google Scholar

7. Shao, J., H. Ren, B. Arigong, C. Li, and H. Zhang, "A fully symmetrical crossover and its dual-frequency application," IEEE Transactions on Microwave Theory and Techniques, Vol. 60, 2410-2416, 2012.
doi:10.1109/TMTT.2012.2198229        Google Scholar

8. Lin, I-H., C. Caloz, and T. Itoh, "A branch-line coupler with two arbitrary operating frequencies using left-handed transmission lines," IEEE MTT-S International Microwave Symposium Digest, Vol. 1, 325-328, 2003.        Google Scholar

9. Cheng, K.-K. M. and F.-L.Wong, "A novel approach to the design and implementation of dual-band compact planar 90◦ branch-line coupler," IEEE Transaction on Microwave Theory and Techniques, Vol. 52, 2458-2463, 2004.
doi:10.1109/TMTT.2004.837151        Google Scholar

10. Zhang, H. and K. J. Chen, "A stub tapped branch-line coupler for dual-band operations," IEEE Microwave and Wireless Components Letters, Vol. 17, 106-108, 2007.
doi:10.1109/LMWC.2006.890330        Google Scholar

11. Chin, K.-S., K.-M. Lin, Y.-H. Wei, T.-H. Tseng, and Y.-J. Yang, "Compact dual-band branch-line and rat-race couplers with stepped-impedance-stub lines," IEEE Transactions on Microwave Theory and Techniques, Vol. 58, 1213-1221, 2010.
doi:10.1109/TMTT.2010.2046064        Google Scholar

12. Zheng, N., L. Zhou, and W.-Y. Yin, "A novel dual-band Π-shaped branch-line coupler with steppedimpedanceA novel dual-band Π-shaped branch-line coupler with stepped-impedance stubs," Progress In Electromagnetics Research Letters, Vol. 25, 11-20, 2011.
doi:10.2528/PIERL11032915        Google Scholar

13. Wong, F.-L. and K.-K. M. Cheng, "A novel planar branch-line coupler design for dual-band applications," IEEE MTT-S International Microwave Symposium Digest, 903-906, 2004.        Google Scholar

14. Park, M.-J. and B. Lee, "Dual-band, cross coupled branch line coupler," IEEE Microwave and Wireless Components Letters, Vol. 15, 655-657, 2005.
doi:10.1109/LMWC.2005.856683        Google Scholar

15. Kim, H., B. Lee, and M. Joo, "Dual-band branch-line coupler with port extensions," IEEE Transactions on Microwave Theory and Techniques, Vol. 58, 651-651, 2010.
doi:10.1109/TMTT.2010.2040342        Google Scholar

16. Atlasbaf, Z. and K. Forooraghi, "A new dual band branch-line coupler using coupled lines," ISAPE’06. 7th International Symposium on Antennas, Propagation & EM Theory, 1-4, 2006.
doi:10.1109/ISAPE.2006.353320        Google Scholar

17. Yeung, L. K., "A compact dual-band 90 coupler with coupled-line sections," IEEE Transactions on Microwave Theory and Techniques, Vol. 59, 2227-2232, 2232.
doi:10.1109/TMTT.2011.2160199        Google Scholar

18. Wang, X., W.-Y. Yin, and K.-L. Wu, "A dual-band coupled-line coupler with an arbitrary coupling coefficient," IEEE Transactions on Microwave Theory and Techniques, Vol. 60, 945-951, 2012.
doi:10.1109/TMTT.2012.2185949        Google Scholar

19. Katakam, S., H. Ren, J. Shao, M. Zhou, B. Arigong, J. Ding, and H. Zhang, "A dual-band branch line coupler based on pi-shaped coupled lines," Microwave and Optical Technology Letters, Vol. 57, 501-504, 2015.
doi:10.1002/mop.28879        Google Scholar

20. Collin, R. E., Foundations for Microwave Engineering, 2nd Ed., IEEE Press, 1992.

Download Full Article (1051) View Full Article volume


The EM Academy piers.org jpier.org Who's Who in EM
Copyright © 2022 The Electromagnetics Academy. All Rights Reserved.