| Open the specification window either by click on "Filter" - "Specification" or by the toolbar. |
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| In the specification window all attributes of the filter can be entered. |
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Normalized/Original: The filter can also be specified with normalized values. However, for most applications you will specify your filter in the original frequency band. |
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Start/Stop: Specifies the start and the stop frequency of the passband. With the Reserve the bandwidth can be changed without scaling the filter. |
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Center/BW:Specifies the center frequency and the bandwidth of the filter. Start and stop frequencies are immediately calculated. |
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Finite Loaded Q: For the simulation with losses enter the quality factor of the resonators. |
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Passband/Zeros: For a single bandpass filter it is sufficient to specify the transmission zeros. For a multiple bandpass filter it is necessary to enter reflexion and transmission zeros. Read the Dual Bandpass Tutorial for further information. |
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Resonators/Filter Order: Enter the number of resonators or the filter order. The filter order is always twice the number of resonators. |
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Return Loss/Passband Ripple: Specifies the return loss or the passband ripple. They are immediately calculated from each other. |
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Transmission Zeros: Add, delete and enter the position of the transmission zeros. |
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Sort TZ: For several filter structures it is advantageous placing the transmission zeros in specific order. By unchecking Sort TZ each transmission zero can be placed at the desired position. |
