image impedance वाक्य
उदाहरण वाक्य
मोबाइल
- The connection between the two can further be seen by noting an alternative, but equivalent, definition of image impedance.
- The predicted characteristics of the filter are calculated assuming that the filter is terminated with its own image impedances at each end.
- An alternative technique to determine the image impedance of port 1 is to measure the short-circuit impedance " Z"
- Antimetrical, in this context, means that the filter image impedances and terminations at each end are the dual of each other.
- Given that the filter does not contain any resistive elements, the image impedance in the pass band of the filter is purely imaginary.
- Because the L section is not symmetrical, it has different image impedances ( \ scriptstyle Z _ \ mathrm i ) on each side.
- In the L-circuit example for iterative impedance, the square-rooted term is equal to the image impedance of a half section.
- The purpose of the shunt resistors, R 2, is to bring the image impedance of the filter back to the original design R 0.
- They are a generalisation of the m-type filter in that a transform is applied that modifies the transfer function while keeping the image impedance unchanged.
- Conversely, it is possible to analyse a transmission line with lumped components, such as one utilising loading coils, in terms of an image impedance filter.
- In the case of a network with symmetrical image impedances, such as a chain of an even number of identical L sections, the expression reduces to,
- Where a port of image impedance " Z " iT faces another " Z " iT, the section is called a ? section.
- It should be borne in mind that the characteristics of the filter predicted by the image method are only accurate if the section is terminated with its image impedance.
- It should be born in mind that the characteristics of the filter predicted by the image method are only accurate if the section is terminated with its image impedance.
- Note that there is no requirement for the filter to be symmetrical internally, only that the end sections have the same image impedance facing into identical terminating impedances.
- Another feature of m-type filters that also applies in the general case is that a half section will have the original k-type image impedance on one side only.
- However, the image impedance of a half-section of such a filter ( on the shunt side ) is not the same and is designated " Z " i?m.
- Rather than enumerate the behaviour ( transfer function, attenuation function, delay function and so on ) of a specific circuit, instead a requirement for the image impedance itself was developed.
- In those early days, filter theory was based on image impedance concepts, or image filter theory, which was a design approach developed from the well-established studies of transmission lines.
- In this definition, the image impedance of a network is the input impedance of an infinitely long chain of cascaded identical networks ( with the ports arranged so that like impedance faces like ).
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