A Novel UWB Filter with WLAN and RFID Stop-Band Rejection Characteristic using Tri-Stage Radial Loaded Stub Resonators
Keywords:
Band-pass filter, dual-band, tristage radial loaded stub resonator, UWB, WLAN and RFID stop-band rejectionAbstract
The paper presents a novel approach for designing compact ultra-wideband (UWB) band-pass filter with WLAN and RFID stop-band rejection characteristic which is obtained by using tri-stage radial loaded stub resonators. The main advantage of the proposed filter is that the Stopband can perfectly reject the WLAN and RFID (5.2GHz-6.1GHz) signals. The density and the equivalent model of one filter for testing the presented design is given depending on the odd/even excitation resonance condition. The characteristics of the filter are analyzed and discussed. To verify the proposed methods, two filters are designed and fabricated. Measured results show the proposed UWB properties from 3 GHz to 10.8 GHz and stop-band properties from 5.2 GHz to 6.1GHz. The designed filters can be integrated in UWB radio systems and can efficiently enhance the interference immunity from undesired signals such as wireless local area network (WLAN) and RFID.
Downloads
References
FCC, Revision of Part 15, the Commission's Rules Regarding to Ultra-Wide-Band Transmission System, First Note and Order Federal Communication Commission, ET-Docket pp. 98- 153, 2002.
C. L. Hsu, F. C. Hsu, and J. T. Kuo, “Microstrip Bandpass Filters for Ultra-Wideband (UWB) Wireless Communications”, 2005 IEEE MTT-S International Microwave Symposium Digest, pp. 679-682, 2005.
H. Wang, L. Zhu, and W. Menzel, “UltraWideband Bandpass Filter with Hybrid Microstrip/CPW Structure”, IEEE Microwave Wireless Compon Lett., vol. 15, pp. 844-846, 2005.
J. Q. Huang and Q. X. Chu, “Compact UWB BandPass Filter Utilizing Modified Composite Right/Left-Handed Structure with Cross Coupling,” Progress In Electromagnetics Research, vol. 107, pp. 179-186, 2010.
H. Chen and Y. X. Zhang, “A Novel and Compact UWB Bandpass Filter using Microstrip Fork-Form Resonators,” Progress In Electromagnetics Research, vol. 77, pp. 273-280, 2007.
L. Qiang, Y. J. Zhao, Q. Sun, W. Zhao, and B. Liu, “A Compact UWB Bandpass Filter based on Complementary Split-Ring Resonators,” Progress In Electromagnetics Research C, vol. 11, pp. 237- 243, 2009.
M. NaghshvarianJahromi and M. Tayarani, “Miniature Planar UWB Bandpass Filters with Circular Slots in Ground,” Progress In Electromagnetics Research Letters, vol. 3, pp. 87- 93, 2008.
B. Yao, Y. Zhou, Q. Cao, and Y. Chen, “Compact UWB Bandpass Filter With Improved UpperStopband Performance”, IEEE Microwave and Wireless Components Lett., vol. 19, pp. 27-29, 2009.
H. Shaman and J. S. Hong, “Ultra-Wideband (UWB) Bandpass Filter with Embedded Band Notch Structures,” IEEE Microw. Wireless Compon Lett., vol. 17, pp. 193-195, 2007.
L. Chen, Y. Shang, and Y. L. Zhang, “Design of a UWB Bandpass Filter with a Notched Band and Wide Stopband,” Microwave Journal, vol. 52, pp. 96-105, 2009.
T. Jiang, C. Y. Liu, Y. S. Li, and M. Y. Zhu, “Research on a Novel Microstrip UWB NotchBand BPF,” Asia Pacific Microwave Conference, pp. 261-264, 2009.
P. Y. Hsiao and R. M. Weng ,“Compact Tri-layer Ultra-wideband Bandpass Filter with Dual Notch Bands,” Progress In Electromagnetics Research, vol. 106, pp. 49-60, 2010.
P. Y. Hsiao and R. M. Weng, “Compact Openloop UWB Filter with Notched Band,” Progress In Electromagnetics Research Letters, vol. 7, pp. 149- 159, 2009.
Y. L. Wu, C. Liao, and X. Z. Xiong, “A DualWideband Bandpass Filter based on E-shaped Microstrip SIR with Improved Upperstopband Performance,” Progress In Electromagnetics Research, vol. 108, pp. 141-153, 2010.
J. Q. Huang, Q. X. Chu, and C. Y. Liu, “Compact UWB Filter based on Surface-coupled Structure with Dual Notch Bands,” Progress In Electromagnetics Research, vol. 106, pp. 311-319, 2010.
S. Pirani, J. Nourinia, and C. Ghobadi, “BandNotched UWB BPF Design Using Parasitic Coupled Line,” IEEE Microwave and Wireless Components Lett., vol. 20, pp. 444-446, 2010.
R. N. Baral, P. K. Singhal, “Design and Analysis of Microstrip Photonic Band Gap Filter for Suppression of Periodicity,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 25, no. 2, pp. 156-159, Feb. 2010.
A. Boutejdar, M. Challal, A. Azrar, “A Novel Band-Stop Filter using Octagonal-Shaped Patterned Ground Structures along with Interdigital and Compensated Capacitors,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 26, no. 4, pp. 312-318, April 2011.
L. Zhang, Z. Y. Yu, and S. G. Mo,“Novel Plane Multimode Bandpass Filters with Radial-line Stubs,” Progress In Electromagnetics Research, vol. 101, pp. 33-42, 2010.
M. D. C. Velazquez-Ahumada, J. Martel-Villagr, F. Medina, and F. Mesa,“Application of Stub Loaded Folded Stepped Impedance Resonators to Dual Band Filters,” Progress In Electromagnetics Research, vol. 102, pp. 107-124, 2010.
C. Y. Liu,T. Jiang,Y. S. Li, A Novel UWB Filter with Notch-band Characteristic using RadialUIR/SIR Loaded Stub Resonators, Journal of Electromagnetic Waves and Applications, vol. 25, no. 2, pp. 233-245, 2011.
Hong, J. S. and M. J. Lancaster, Microstrip Filters for RF/Microwave Applications, Wiley, New York, 2001.