Browse > Article

Koch Fractal Shape Microstrip Bandpass Filters on High Resistivity Silicon for the Suppression of the 2nd Harmonic  

Kim, Ii-Kwon (School of Electrical and Computer Engineering, Georgia Institute of Technology)
Kingsley Nickolas (School of Electrical and Computer Engineering, Georgia Institute of Technology)
Morton Matthew A. (School of Electrical and Computer Engineering, Georgia Institute of Technology)
Pinel Stephane (School of Electrical and Computer Engineering, Georgia Institute of Technology)
Papapolymerou John (School of Electrical and Computer Engineering, Georgia Institute of Technology)
Tentzeris Manos M. (School of Electrical and Computer Engineering, Georgia Institute of Technology)
Laskar Joy (School of Electrical and Computer Engineering, Georgia Institute of Technology)
Yook, Jong-Gwan (Department of Electric and Electronics Engineering, Yonsei University)
Publication Information
Journal of electromagnetic engineering and science / v.6, no.4, 2006 , pp. 235-243 More about this Journal
Abstract
In this paper, the fractal shape is applied to microstrip band pass filters and integrated on a high-resistivity Si substrate to solve conventional $2^{nd}$ harmonic problem. Conventional microstrip coupled line filters are popular in RF front ends, because they can be easily fabricated and integrated with other RF components. However, they typically have large second harmonics that can cause unwanted interference in interested frequency bands. Without any additional filters, the proposed Koch shape filters have suppressed the $2^{nd}$ harmonics by about -40 dB, so they can be used in systems such as direct conversion receiver with stringent harmonic suppression requirements.
Keywords
Koch Fractal Geometry; Space Filling Property; Microstrip Bandpass Filter; The $2^{nd}$ Harmonic Suppression; High Resistivity Silicon;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Jen-Tsai Kuo, Meshon Jiang, 'Enhanced microstrip filter design with a uniform dielectric overlay for suppressing the second harmonic response', IEEE Microwave and Wireless Component Letters, vol. 14, no. 9, pp. 419-421, Sep. 2004   DOI   ScienceOn
2 Maria del Castillo Velazquez-Ahumada, Jesus Martel, and Francisco Medina, 'Parallel coupled microstrip filters with ground-plane aperture for spurious band suppression and enhanced coupling', IEEE trans. on Microwave Theory and Techniques, vol. 52, no. 3, pp. 1082-1086, Mar. 2004   DOI   ScienceOn
3 Txema Lopetegi, Miguel A. G. Laso, Jorge Hernandez, Miguel Bacaicoa, David Benito, Maria J. Garde, Mario Sorolla, and Marco Guglielmi, 'New microstrip “Wiggly-line” filters with spurious passband suppression', IEEE Trans. on Microwave Theroy and Techniques, vol. 49, no. 9, pp. 1593-1598, Sep. 2001   DOI   ScienceOn
4 C. Punete-Baliarda, R. Pous, 'Fractal design of multiband and low side-lobe arras', IEEE Trans. on Antennas and Propagation, vol. AP-44, pp. 730-739, May 1996
5 I. K. Kim, Koch Fractal Shape Microstrip Coupled Line and Its Application on RF Passive Devices for Wireless Communications, Ph.D Thesis, Yonsei University, 2006
6 I. K. Kim, J. G. Yook, and H. K. Park, 'Fractal shape small size microstrip patch antenna', Microwave and Optical Technology Letters, vol. 34, no. 1, pp. 15-17, Jul. 2002   DOI   ScienceOn
7 Hani Ghali, Tarek A. Moselhy, 'Miniaturized fractal rat-race, branch-line and coupled-line hybrids', IEEE Trans. on Microwave Theory and Techniques, vol. 52, no. 11, pp. 2513-2520, Nov. 2004   DOI   ScienceOn
8 V. Crnojevic-Bengin, Budimir, 'Novel compact resonators with multiple 2-D hilbert fractal curves', the Proceeding of 35th European Microwave Conference, pp. 205-208, 2005
9 Jen-Tsai Kuo, Sin-Ping Chen, and Meshon Jiang, 'Parallel-coupled microstrip filters with over-coupled end stages for suppression of spurious responses', IEEE Microwave and Wireless Components Letters, vol. 13, no. 10, pp. 440-442, Oct. 2003   DOI   ScienceOn
10 Texa Lopetegi, Miguel A. G. Laso, Francisco Falcone, Ferran Martin, Jordi Bonache, Joan Garcia, Lteticia Perez-Cuevas, Mario Sorolla, and Marco Guglielmi, 'Microstrip 'Wiggly-line' bandpass filters with multispurious rejection', IEEE Microwave and Wireless Component Letters, vol. 14, no. 11, pp. 531-533, Nov. 2004   DOI   ScienceOn
11 David M. Pozar, Microwave Engineering, 2nd Ed., pp. 474-485, 1993
12 B. S. Kim, J. W. Lee, and M. S. Song, 'An implementation of harmonic-suppression microstrip filters with periodic grooves', IEEE Microwave and Wireless Components Letters, vol. 14, no. 9, pp. 413-415, Sep. 2004   DOI   ScienceOn
13 D. H. Werner, P. L. Wener, 'Frequency independent features of self-similar fractal antennas', Radio Science, vol. 31, no. 6, pp. 1331-1343, Nov. 1996   DOI   ScienceOn