A Compact Tunable Triple Stop-Band Filter Based on Different Defected Microstrip Structures
关键词:
Defected microstrip structure, meander line slot, spur line, triple stop-band filter, U-shaped slot摘要
A compact triple stop-band filter based on different defected microstrip structures is proposed, fabricated and measured to filter out the undesired narrowband signal interferences against UWB systems. A meander line slot (MLS), a U-shaped slot (USS) and a spur line (SL) are etched on a 50-Ohm microstrip line to achieve the expected triple stop-band function and to provide a good tunable characteristic by selecting the proper dimensions of the MLS, USS and SL. The equivalent circuit model and its simulations are presented to evaluate the designed triple stop-band filter. Simulated and measured results are given to demonstrate that the proposed triple stop-band filter has controllable center frequencies and compact size.
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参考
Federal Communications Commission, First Report and Order, Revision of Part 15 of Commission’s Rule Regarding UWB Transmission System FCC 02-48, Washington, DC, USA, 2002.
Y. Li, W. Li, and W. Yu, “A switchable UWB slot antenna using SIS-HSIR and SIS-SIR for multimode wireless communications applications,” Applied Computational Electromagnetics Society Journal, vol. 27, no. 4, pp. 340-351, 2012.
Y. Li, W. Li, and Q. Ye, “A reconfigurable triplenotch-band antenna integrated with defected microstrip structure band-stop filter for ultra-wideband cognitive radio applications,” International Journal of Antennas and Propagation, vol. 2013, Article ID: 472645, pp. 1-13, 2013.
D. J. Woo, T. K. Lee, J. W. Lee, C. S. Pyo, and W. K. Choi, “Novel U-slot and V-slot DGSs for bandstop filter with improved Q factor,” IEEE Transactions on Microwave Theory and Techniques, vol. 54, no. 6, pp. 2840-2847, 2006.
Q. Chen and J. Xu, “DGS resonator with two transmission zeros and its application to lowpass filter design,” Electronics Letters, vol. 46, no. 21, pp. 1447-1449, 2010.
A. Nouri and G. R. Dadashzadeh, “A compact UWB band-notched printed monopole antenna with defected ground structure,” IEEE Antennas and Wireless Propagation Letters, vol. 10, pp. 1178-1181, 2011.
B. Wu, B. Li, and C. Liang, “Design of lowpass filter using a novel split-ring resonator defected ground structure,” Microwave and Optical Technology Letters, vol. 49, no. 2, pp. 288-291, 2007.
X. Li, Z. Shao, and C. J. You, “X-band substrate integrated waveguide bandpass filter using novel defected ground structure cell,” Microwave and Optical Technology Letters, vol. 57, no. 5, pp. 1156- 1160, 2015.
D.-S. La, W.-H. Han, and J.-L. Zhang, “Compact band-stop filters using π-shape DGS and π-shape DMS,” Microwave and Optical Technology Letters, vol. 56, no. 11, pp. 2504-2507, 2014.
S. Zhang, J.-K. Xiao, Z.-H. Wang, and Y. Li, “Novel low pass filters using a defected microstrip structure,” Microwave Journal, vol. 49, no. 9, pp. 118-128, 2006.
J.-K. Xiao, W.-J. Zhu, and J. S. Fu, “New bandstop filter using simple defected microstrip structure,” Microwave Journal, vol. 54, no. 9, pp. 134-144, 2011.
M. Naser-Moghadasi, M. Alamolhoda, and B. Rahmati, “Spurious-response suppression in microstrip parallel-coupled bandpass filters by using defected microstrip structures,” IEICE Electronics Express, vol. 8, no. 2, pp. 70-75, 2011.
N. Ojaroudi, H. Ojaroudi, and Y. Ojaroudi, “Very low profile ultrawideband microstrip band-stop filter,” Microwave and Optical Technology Letters, vol. 56, no. 3, pp. 709-711, 2014.
D. La, Y. Lu, S. Sun, N. Liu, and J. Zhang, “A novel compact bandstop filter using defected microstrip structure,” Microwave and Optical Technology Letters, vol. 53, no. 2, pp. 433-435, 2011.
S. Zhang and L. Zhu, “Compact tri-band bandpass filter based on λ/4 resonators with U-folded coupled-line,” IEEE Microw. Wirel. Compon. Lett., vol. 23, no. 5, pp. 258-260, 2013.
Z. Jiang, Z. Sun, Y. Li, and Y. Zhao, “A wide dual band stop-band filter with two different defected microstrip structures,”The 39th Progress In Electromagnetics Research Symposium, Singapore, Nov. 19-22, 2017.
Y. Wang, T. Jiang, and Y. Li, “A miniaturized dual stop-band filter using meander defected microstrip structures,” IEEE International Conference on Wireless Information Technology and Systems (ICWITS) and Applied Computational Electromagnetics (ACES), Mar. 13-17, Hawaii, USA, 2016.
Y. Wang, T. Jiang, and Y. Li, “Development of a microstip-fed multi-band antenna by means of defected microstrip structures,” Progress In Electromagnetics Research Symposium, Shanghai, China, Aug. 8-11, 2016.
T. Jiang, Y. Wang, and Y. Li, “Design and analysis of a triple stop-band filter using ratioed periodical defected microstrip structure,” Frequenz, vol. 71, no. 7-8, pp. 341-347, 2017.
C. F. Chen, T. Y. Huang, and R. B. Wu, “Design of dual- and triple-passband filters using alternately cascaded multiband resonators,” IEEE Trans. Microw. Theory Tech., vol. 54, no. 9, pp. 3550- 3558, 2006.
Y. Li, W. Zhang, and W. Yu, “A circular slot UWB antenna with independently tunable quad-band filtering characteristics,” Applied Computational Electromagnetics Society Journal, vol. 30, no. 10, pp. 1089-1095, 2015.
