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- General_mn-type_image_filter abstract "These filters are electrical wave filters designed using the image method. They are an invention of Otto Zobel at AT&T Corp.. 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. For filters that have only one stopband there is no distinction with the m-type filter. However, for a filter that has multiple stopbands, there is the possibility that the form of the transfer function in each stopband can be different. For instance, it may be required to filter one band with the sharpest possible cut-off, but in another to minimise phase distortion while still achieving some attenuation. If the form is identical at each transition from passband to stopband the filter will be the same as an m-type filter (k-type filter in the limiting case of m=1). If they are different, then the general case described here pertains.The k-type filter acts as a prototype for producing the general mn designs. For any given desired bandform there are two classes of mn transformation that can be applied, namely, the mid-series and mid-shunt derived sections; this terminology being more fully explained in the m-derived filter article. 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. The other port will present a new image impedance. The two transformations have equivalent transfer functions but different image impedances and circuit topology.Parts of this article or section rely on the reader's knowledge of the complex impedance representation of capacitors and inductors and on knowledge of the frequency domain representation of signals.↑".
- General_mn-type_image_filter thumbnail Image_filter_bandform_terminology.svg?width=300.
- General_mn-type_image_filter wikiPageID "18182881".
- General_mn-type_image_filter wikiPageRevisionID "596834378".
- General_mn-type_image_filter filter "hide".
- General_mn-type_image_filter hasPhotoCollection General_mn-type_image_filter.
- General_mn-type_image_filter subject Category:Electronic_filter_topology.
- General_mn-type_image_filter subject Category:Image_impedance_filters.
- General_mn-type_image_filter type Artifact100021939.
- General_mn-type_image_filter type Device103183080.
- General_mn-type_image_filter type Filter103339643.
- General_mn-type_image_filter type ImageImpedanceFilters.
- General_mn-type_image_filter type Instrumentality103575240.
- General_mn-type_image_filter type Object100002684.
- General_mn-type_image_filter type PhysicalEntity100001930.
- General_mn-type_image_filter type Whole100003553.
- General_mn-type_image_filter comment "These filters are electrical wave filters designed using the image method. They are an invention of Otto Zobel at AT&T Corp.. 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. For filters that have only one stopband there is no distinction with the m-type filter.".
- General_mn-type_image_filter label "General mn-type image filter".
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- General_mn-type_image_filter sameAs Q5532365.
- General_mn-type_image_filter sameAs Q5532365.
- General_mn-type_image_filter sameAs General_mn-type_image_filter.
- General_mn-type_image_filter wasDerivedFrom General_mn-type_image_filter?oldid=596834378.
- General_mn-type_image_filter depiction Image_filter_bandform_terminology.svg.
- General_mn-type_image_filter isPrimaryTopicOf General_mn-type_image_filter.