A Novel Compact Microstrip Low-pass Filter with a Wide Rejection-Band and Sharp Roll-Off using Star-Shaped Resonator
关键词:
Low-pass filter, microstrip, sharp roll-off and wide rejection band摘要
In this paper, a novel compact microstrip Low-Pass Filter (LPF) with a wide rejection-band and sharp roll-off using a starshaped resonator is presented. The proposed LPF provides some significant features, such as simple structure, low insertion-loss less than 0.1 dB from DC to 2.391 GHz in the pass-band and expanded stop-band with an attenuation level better than -20 dB from 2.842 GHz up to 20.65 GHz. The transition band is 0.27 GHz from 2.57 GHz to 2.84 GHz, with corresponding attenuation levels of -3 dB and -20 dB, respectively. The filter with a -3 dB cutoff frequency of 2.57 GHz has been designed, fabricated and tested, where the measurement results are in good agreement with the simulation results. The overall size of the proposed LPF is only 11.4 mm 13.6 mm.
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参考
A. S. Mohra, “Microstrip low pass filter with wideband rejection using opened circuit stubs and z-slots defected ground structures,” -ICROWAVEAND /PTICAL4ECHNOLOGY,ETTERS, vol. 53, no. 4, pp. 811- 815, April 2011.
M. Al-Sharkawy, A. Boutejdar, F. Alhefnawi, and O. Luxor, “Improvement of compactness of lowpass/band-pass filter using a new electromagnetic coupled crescent defected ground structure resonators,” !PPLIED #OMPUTATIONAL %LECTROMAGNETICS 3OCIETY *OURNAL, vol. 25, no. 7, pp. 570-577, July 2010.
M. Challal, A. Boutejdar, M. Dehmas, A Azrar, and A. Omar, “Compact microstrip low-pass filter design with ultra-wide reject and using a novel quarter-circle DGS shape,” !PPLIED#OMPUTATIONAL %LECTROMAGNETICS3OCIETY*OURNAL, vol. 27, no. 10, October 2012.
G. E. Al-Omair, S. F. Mahmoud, and A. S. AlZayed, “Low-pass and band-pass filter designs based on DGS with complementary split ring resonators,” !PPLIED #OMPUTATIONAL %LECTROMAGNETICS3OCIETY*OURNAL, vol. 26, no. 11, November 2011.
Y. Yousefzadeh and M. Hayati, “Compact lowpass filter with wide stopband using a tapered microstrip resonator cell,” -ICROWAVE*OURNAL, vol. 55, no. 3, pp. 122-128, March 2012.
M. H. Yang, J. Xu, Q. Zhao, L. Peng, and G. P. Li, “Compact broad stop-band low-pass filters using sirs-loaded circular hairpin resonators,” 0ROGRESS )N %LECTROMAGNETICS 2ESEARCH, VOL 102, pp. 95- 106, 2010.
A. Adinehvand and A. Lotfi, “Compact low-pass filter with wide stop-band using open stubs-loaded spiral microstrip resonant cell,” !PPLIED #OMPUTATIONAL %LECTROMAGNETICS 3OCIETY *OURNAL, vol. 28, no. 1, January 2013.
H. R. Khakzad, S. H. Sedighy, and M. K. Amirhosseini, “Design of compact SITLs low-pass filter by using invasive weed optimization (IWO) technique,” !PPLIED #OMPUTATIONAL %LECTROMAGNETICS 3OCIETY *OURNAL, vol. 28, no. 3, March 2013.
J. Wang, H. Cui, and G. Zhang, “Design of compact microstrip low-pass filter with ultra-wide stop band,” %LECTRONICS,ETTERS, vol. 48, no. 14, pp. 854-856, July 2012.
H. Cui, J. Wang, and G. Zhang, “Design of microstrip low-pass filter with compact size and ultra-wide stop-band,” %LECTRONICS,ETTERS, vol. 48, no. 14, pp. 856-857, July 2012.
L. Ge, J. P. Wang, and Y. X. Guo, “Compact microstrip low-pass filter with ultra-wide stop band,” %LECTRONICS,ETTERS, vol. 46, no. 10, pp. 689- 691, May 2010.
J. Y. Wu, Y. H. Tseng, and W. H. Tu, “Design of compact low-pass filter with ultra-wide stop band using thin slots,” 0ROGRESS )N %LECTROMAGNETICS 2ESEARCH#, vol. 31, pp. 137-151, 2012.
X. B. Wei, P. Wang, M. Q. Liu, and Y. Shi, “Compact wide stop-band low-pass filter using stepped impedance hairpin resonator with radial stubs,” %LECTRONICS,ETTERS, vol. 47, no. 15, pp. 862- 863, July 2011.
J. S. Hong and M. J. Lancaster, “Microstrip filters for RF/microwave applications,” *OHN 7ILEY 3ONS )NC, New York, 2001.
M. Hayati, F. Shama, and H. Abbasi, “Compact microstrip low-pass filter with wide stop-band and sharp roll off using tapered resonator,” )NTERNATIONAL*OURNALOF%LECTRONIC
