volume | PIER Journals

Abstract

In this paper CSRRs (complementary split-ring resonators) are used to suppress the first spurious response in microstrip hairpin filters. The CSRRs are merged in the filter structure, and therefore the filter size is not increased. The design methodology is presented, and a filter with center frequency at 3 GHz is designed, fabricated and tested as an example. The characterization of this new filter shows the efficiency of the proposed approach to improve filter response with spurious rejection up to 20dB while the size is even slightly reduced.

1. Hunter, I. C., "Microwave filters applications and technology," IEEE Trans. on Microwave Theory Tech., Vol. 50, No. 3, 794-805, 2002.
doi:10.1109/22.989963 Google Scholar

2. Cohn, S. B., "Parallel-coupled transmission-line resonator filters," IRE Trans. Microw. Theory Tech., Vol. 6, No. 2, 223-231, 1958.
doi:10.1109/TMTT.1958.1124542 Google Scholar

3. Kuo, J. T. and M. Jiang, "Suppression of spurious resonance for microstrip band pass filters via substrate suppression," Asia-Pacific Microwave Conf., 497-500, Kyoto, Japan, 2002.

4. Kuo, J. T. and W. Hsu, "Parallel coupled microstrip filters with suppression of harmonic response," IEEE Microw. Wireless Compon. Lett., Vol. 12, No. 10, 383-385, 2002.
doi:10.1109/LMWC.2002.804559 Google Scholar

5. Lopetegi, T., M. A. G. Laso, J. Hernandez, M. Bacaicoa, D. Benito, M. J. Garde, M. Sorolla, and M. Guglielmi, "New microstrip wiggly-line filters with spurious passband suppression," IEEE Trans. Microw. Theory Tech., Vol. 49, 1593-1598, 2001.
doi:10.1109/22.942571 Google Scholar

6. Radisic, V., Y. Qian, and T. Itoh, "Broad-band power amplifier using dielectric photonic bandgap structures," IEEE Microw. Guided Wave Lett., Vol. 8, No. 1, 13-15, 1998.
doi:10.1109/75.650973 Google Scholar

7. Falcone, F., T. Lopetegi, J. D. Baena, R. Marques, F. Martin, and M. Sorolla, "Effective negative-ε stop-band microstrip lines based on complementary split ring resonators," IEEE Microwave. Lett., Vol. 14, No. 6, 280-282, 2004.
doi:10.1109/LMWC.2004.828029 Google Scholar

8. Garcia-Garcia, J., F. Martin, F. Falcone, J. Bonache, J. Baena, I. Gil, E. Amat, T. Lopetegi, M. Laso, J. Iturmendi, M. Sorolla, and R. Marques, "Microwave filters with improved stopband based on sub-wavelength resonators," IEEE Trans. Microw. Theory Tech., Vol. 53, 1997-2006, 2005.
doi:10.1109/TMTT.2005.848828 Google Scholar

9. Wu, B., B. Li, T. Su, and C. H. Liang, "Study on transmission characteristic of split ring resonator defected ground structure," Progress In Electromagnetics Research, Vol. 50, 710-714, 2006. Google Scholar

10. Falcone, F., T. Lopetegi, M. A. G. Laso, J. D. Baena, J. Bonache, R. Marques, F. Martin, and M. Sorolla, "Babinet principle applied to the design of meta-surfaces and meta-materials," Phys. Rev. Lett., Vol. 93, 197401-197404, 2004.
doi:10.1103/PhysRevLett.93.197401 Google Scholar

11. Bonache, J., I. Gil, J. Garcia-Garcia, and F. Martin, "New microstrip filters based on complementary split rings resonators," IEEE Trans. Microw. Theory Tech., Vol. 54, No. 1, 265-271, 2006.
doi:10.1109/TMTT.2005.861664 Google Scholar

12. Garcia, J., F. Martin, F. Falcone, J. Bonache, I. Gil, T. Lopetegi, M. A. G. Laso, M. Sorolla, and R. Marques, "Spurious passband suppression in microstrip coupled line band pass filters by means of split ring resonators," IEEE Microw. Wireless Compon. Lett., Vol. 14, No. 9, 416-418, 2004.
doi:10.1109/LMWC.2004.832066 Google Scholar

13. Baena, J. D., J. Bonache, F. R. Martin, Marques, F. Falcone, T. Lopetegi, M. A. G. Laso, and M. Sorolla, "Equivalent circuit models for split ring resonators and complementary split ring resonators coupled to planar transmission lines," IEEE Trans. Microw. Theory Tech., Vol. 53, No. 4, 1451-1461, 2005.
doi:10.1109/TMTT.2005.845211 Google Scholar

14. Beruete, M., R. Marques, J. D. Baena, and M. Sorolla, "Resonance and cross-polarization effects in conventional and complementary split ring resonators periodic screens," Antennas and Propagation Society International Symposium, Vol. 3A, 794-797, 2005.

15. Lai, X., Q. Li, P. Y. Qin, B. Wu, and C. H. Liang, "A novel widband band pass filter based on complementary split ring resonator," Progress In Electromagnetics Research C, Vol. 1, 177-184, 2008.
doi:10.2528/PIERC08013104 Google Scholar

16. Zhang, J., B. Cui, and X. W. Sun, "Sharp rejection Low pass filter with controllable transmission zero using complementary split ring resonator (CSRR)," Progress In Electromagnetics Research, Vol. 69, 219-226, 2007.
doi:10.2528/PIER06122103 Google Scholar

Mrs. Ana Afkhami

Dr. Majid Tayarani