Design of a Dual Stop-Band Filter Based on Coplanar Waveguide


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This letter presents a dual stop-band filer based on coplanar waveguide (CPW), which consists of two spiral-shaped defected ground structure (DGS). The model of the equivalent circuit, discussing the influence of the spiral shape size, and simulated performances are presented. Finally, a dual stop-band filter is presented and verified by simulations, which is operated from 11.5 to 14 GHz and 23 to 28 GHz.



Edited by:

Elwin Mao and Xibing Li




Z. L. Deng et al., "Design of a Dual Stop-Band Filter Based on Coplanar Waveguide", Applied Mechanics and Materials, Vol. 151, pp. 145-149, 2012

Online since:

January 2012




[1] Z.L. Deng, N.B. Zhang, and J. -M. Huang, A Tunable Ultra-wideband Band-stop Fiter Based on EBG Structures Using MEMS Technology, Mechatronics and Automation International Conference on, Aug (2009).


[2] Daniel B. Schlieter and Rashaunda M. Henderson, Silicon Integrated Defected Ground Structures, Silicon Monolithic Integrated Circuits in RF System (SiRF), 2010 Topical Meeting on, May (2010).


[3] M.F. Karim, A.Q. Liu, A.B. Yu, and A. Alphones, MEMS-Based Tunable Bandstop Filter Using Electromagnetic Bandgap(EBG) Structures, Microwave Conference Proceedings, (2005).


[4] Amr M.E. Safwat, Florence Podevin, Philippe Ferrari, and Anne Vilcot, Tunable Bandstop Defected Ground Structure Resonator Using Reconfigurable Dumbbell-shaped Coplanar Waveguide, IEEE Transactions On Microwave Theory And Techniques, vol. 54, No. 9, September (2006).


[5] Dal Ahn, Jun-Seok Park, Chul-Soo Kim, Juno Kim, Yongxi Qian, and Tatsuo Itoh, A Design of the Low-Pass Filter Using the Novel Microstrip Defected Ground Structure, IEEE Transactions On Microwave Theory And Techniques, Vol. 49, No. 1, January (2001).


[6] H.W. Liu, T. Yoshimasu, and L.L. Sun, CPW bandstop filter using periodically loaded slot resonators, Electronics Letters, Vol. 42, No. 6, March (2006).


[7] Jong-Sik Lim, Chul-Soo Kim, Young-Taek Lee, Dal Ahn, Sangwook Nam, A Spiral-Shaped Defected Ground Structure for Coplanar Waveguide, IEEE Microwave And Wireless Components Letters, vol. 12, No. 9, September. (2002).


[8] S. Kanthamani, S. Raju, N. Dhamodharan, and K. -S. Chidambaram, Characterization of elevated CPW on different substrates for high speed digital interconnects, MICROWAVE 2008. International Conference, pp.754-756, 21-24 Nov. (2008).