Influence of the frequency dispersion of resonators’ coupling coefficients on the accuracy of direct-synthesis formulas for microwave filters
For the case of a wideband filter designed on the basis of parallel oscillatory circuits with combined coupling, the influence of the slope of the frequency characteristics of the coupling coefficients in a tuned filter on the values of these coefficients at the resonant frequency is investigated. T...
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| Veröffentlicht in: | Journal of communications technology & electronics 2009-03, Vol.54 (3), p.298-301 |
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| container_title | Journal of communications technology & electronics |
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| creator | Tyurnev, V. V. |
| description | For the case of a wideband filter designed on the basis of parallel oscillatory circuits with combined coupling, the influence of the slope of the frequency characteristics of the coupling coefficients in a tuned filter on the values of these coefficients at the resonant frequency is investigated. The slope angle of these curves is controlled by the ratio of the inductive and capacitive components of the coupling coefficients. The actual values of the coupling coefficients are compared with the values obtained from the direct-synthesis formulas. |
| doi_str_mv | 10.1134/S1064226909030073 |
| format | Article |
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| issn | 1064-2269 1555-6557 |
| language | eng |
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| source | SpringerNature Journals |
| subjects | Accuracy Circuits Communications Engineering Communications technology Electrodynamics and Wave Propagation Electromagnetism Engineering Frequencies Investigations Networks Studies |
| title | Influence of the frequency dispersion of resonators’ coupling coefficients on the accuracy of direct-synthesis formulas for microwave filters |
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