Vol. 68
Latest Volume
All Volumes
PIERB 105 [2024] PIERB 104 [2024] PIERB 103 [2023] PIERB 102 [2023] PIERB 101 [2023] PIERB 100 [2023] PIERB 99 [2023] PIERB 98 [2023] PIERB 97 [2022] PIERB 96 [2022] PIERB 95 [2022] PIERB 94 [2021] PIERB 93 [2021] PIERB 92 [2021] PIERB 91 [2021] PIERB 90 [2021] PIERB 89 [2020] PIERB 88 [2020] PIERB 87 [2020] PIERB 86 [2020] PIERB 85 [2019] PIERB 84 [2019] PIERB 83 [2019] PIERB 82 [2018] PIERB 81 [2018] PIERB 80 [2018] PIERB 79 [2017] PIERB 78 [2017] PIERB 77 [2017] PIERB 76 [2017] PIERB 75 [2017] PIERB 74 [2017] PIERB 73 [2017] PIERB 72 [2017] PIERB 71 [2016] PIERB 70 [2016] PIERB 69 [2016] PIERB 68 [2016] PIERB 67 [2016] PIERB 66 [2016] PIERB 65 [2016] PIERB 64 [2015] PIERB 63 [2015] PIERB 62 [2015] PIERB 61 [2014] PIERB 60 [2014] PIERB 59 [2014] PIERB 58 [2014] PIERB 57 [2014] PIERB 56 [2013] PIERB 55 [2013] PIERB 54 [2013] PIERB 53 [2013] PIERB 52 [2013] PIERB 51 [2013] PIERB 50 [2013] PIERB 49 [2013] PIERB 48 [2013] PIERB 47 [2013] PIERB 46 [2013] PIERB 45 [2012] PIERB 44 [2012] PIERB 43 [2012] PIERB 42 [2012] PIERB 41 [2012] PIERB 40 [2012] PIERB 39 [2012] PIERB 38 [2012] PIERB 37 [2012] PIERB 36 [2012] PIERB 35 [2011] PIERB 34 [2011] PIERB 33 [2011] PIERB 32 [2011] PIERB 31 [2011] PIERB 30 [2011] PIERB 29 [2011] PIERB 28 [2011] PIERB 27 [2011] PIERB 26 [2010] PIERB 25 [2010] PIERB 24 [2010] PIERB 23 [2010] PIERB 22 [2010] PIERB 21 [2010] PIERB 20 [2010] PIERB 19 [2010] PIERB 18 [2009] PIERB 17 [2009] PIERB 16 [2009] PIERB 15 [2009] PIERB 14 [2009] PIERB 13 [2009] PIERB 12 [2009] PIERB 11 [2009] PIERB 10 [2008] PIERB 9 [2008] PIERB 8 [2008] PIERB 7 [2008] PIERB 6 [2008] PIERB 5 [2008] PIERB 4 [2008] PIERB 3 [2008] PIERB 2 [2008] PIERB 1 [2008]
2016-05-11
Design of Dual-Band Filters with Individually Controllable Passband Responses and Orders
By
Progress In Electromagnetics Research B, Vol. 68, 17-33, 2016
Abstract
This paper presents a novel design of dual-band filters with individually controllable passband responses and orders. Besides the center frequency and bandwidth, the response and order of each passband can be different and controlled individually. The dual-band filter is formed by synthesizing each filter element (resonator, inverter) one by one, exploiting the corresponding individual single-band filters design tables/formulas for different prototype responses and orders. Trisection stepped-impedance resonators (TSSIR) are adopted with novel considerations as dual-band resonators, whose additional design parameters could help to realize the required in-band responses (resonances, slope parameters) and improve simultaneously the out-of-band performances (transmission zeros of TSSIR). Furthermore, they can be used to design a dual-band filter with far separation between two passbands. Meanwhile, stepped-impedance inverters are chosen as dual-band inverters with novel additional conditions to obtain symmetric passbands, which can also provide different inverter immittance parameters J/K at two center frequencies when the response or order of each passband is different. To illustrate the two passbands being controlled individually, two dual-band filters with different orders and responses are demonstrated.
Citation
Xiaofeng Sun, and Eng Leong Tan, "Design of Dual-Band Filters with Individually Controllable Passband Responses and Orders," Progress In Electromagnetics Research B, Vol. 68, 17-33, 2016.
doi:10.2528/PIERB16032310
References

1. Pozar, D. M., Microwave Engineering, 3rd Ed., Wiley, New York, 2005.

2. Matthaei, G. L., L. Young, and E. M. T. Jones, Microwave Filters, Impedance Matching Networks and Coupling Structures, Ch. 8, Artech House, Norwood, MA, 1980.

3. Hong, J. S. and M. J. Lancaster, Microstrip Filter for RF/Microwave Application, Wiley, New York, 2001.
doi:10.1002/0471221619

4. Collin, R. E., Foundations for Microwave Engineering, 2nd Ed., IEEE Press, 2001.
doi:10.1109/9780470544662

5. Lai, M.-I. and S.-K. Jeng, "Compact microstrip dual-band bandpass filters design using genetic-algorithm techniques," IEEE Trans. Microwave Theory Tech., Vol. 54, 160-168, 2006.
doi:10.1109/TMTT.2005.860327

6. Shang, X., Y. Wang, G. L. Nicholson, and M. J. Lancaster, "Design of multiple-passband filters using coupling matrix optimisation," IET Microw. Antennas Propag., Vol. 6, 24-30, 2011.
doi:10.1049/iet-map.2011.0261

7. Tsai, L.-C. and C.-W. Hsue, "Dual-band bandpass filters using equal-length coupled-serial-shunted lines and Z-transform technique," IEEE Trans. Microwave Theory Tech., Vol. 53, 3265-3271, Apr. 2004.

8. Liu, Y. and W. Dou, "A dual-band filter realized by alternately connecting the main transmission- line with shunt stubs and shunt serial resonators," IEEE Microw. Wireless Compon. Lett., Vol. 19, 296-298, 2009.
doi:10.1109/LMWC.2009.2020027

9. Liu, A.-S., T.-Y. Huang, and R.-B. Wu, "A dual wideband filter design using frequency mapping and stepped-impedance resonators," IEEE Trans. Microwave Theory Tech., Vol. 56, 2921-2929, Dec. 2008.
doi:10.1109/TMTT.2008.2007357