Eigenvalue approach to synthesis of prototype filters with source/load coupling

  title={Eigenvalue approach to synthesis of prototype filters with source/load coupling},
  author={Piotr Kozakowski and Adam Lamecki and Piotr Sypek and Michax0142 Mrozowski},
  journal={IEEE Microwave and Wireless Components Letters},
A new, quickly converging, technique for the synthesis of the extended coupling matrix for the Chebyshev filtering function of general kind is presented. The method formulates the synthesis as a least squares problem involving the eigenvalues of the N+2 transversal coupling matrix and its principal submatrices. 
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