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Volume 30 Issue 3
Dec.  2010
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Zhu Yong-zhong, Xie Yong-jun, Ni Da-ning . Design of Quasi-Elliptic Filter with Source-Load Cross-Coupling[J]. Journal of Electronics & Information Technology, 2008, 30(3): 604-606. doi: 10.3724/SP.J.1146.2007.00409
Citation: Zhu Yong-zhong, Xie Yong-jun, Ni Da-ning . Design of Quasi-Elliptic Filter with Source-Load Cross-Coupling[J]. Journal of Electronics & Information Technology, 2008, 30(3): 604-606. doi: 10.3724/SP.J.1146.2007.00409

Design of Quasi-Elliptic Filter with Source-Load Cross-Coupling

doi: 10.3724/SP.J.1146.2007.00409 cstr: 32379.14.SP.J.1146.2007.00409
  • Received Date: 2007-03-22
  • Rev Recd Date: 2007-10-29
  • Publish Date: 2008-03-19
  • A general method is presented for synthesis of quasi-elliptic filter with source-load coupling. The equivalent circuit of the low-pass prototype of a lossless coupled resonator filter is proposed, as well as its transfer function t (s ).The expressions of MSL, MSi and MiL in the coupling matrix M are obtained based on two-port admittance matrix [ YN ]. Finally, a novel quasi-elliptic two pole microstrip filter composed of two hexagonal open-loop resonators is designed. The numerical results are verified with the simulation, The measured and simulated data are in good agreement.
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