| Abstrakt: |
The aim of this paper is to show how coupling coefficients or coupling matrix of advanced filter response can be realized using microwave circuit simulators. Normally, an optimization or synthesis algorithm is used to determine such coupling matrix. Here, we present a procedure on how one can achieve the same using the available optimizer algorithm within commercial circuit simulators. A 6-order filter will be presented as an example. However, this technique is applicable to any number of poles. We will show how by merely using Chebyshev filter coupling coefficients as the starting point of the optimization process, the coupling coefficients of more advanced filter response can be determined. An electromagnetic simulated microstrip tri-band band-pass filter achieved using this procedure will be presented as an illustration. [ABSTRACT FROM AUTHOR] |
