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- Passive_analogue_filter_development abstract "This article is about the history and development of passive linear analogue filters used in electronics. For linear filters in general see Linear filter. For electronic filters in general see Electronic filter.Analogue filters are a basic building block of signal processing much used in electronics. Amongst their many applications are the separation of an audio signal before application to bass, mid-range and tweeter loudspeakers; the combining and later separation of multiple telephone conversations onto a single channel; the selection of a chosen radio station in a radio receiver and rejection of others.Passive linear electronic analogue filters are those filters which can be described with linear differential equations (linear); they are composed of capacitors, inductors and, sometimes, resistors (passive) and are designed to operate on continuously varying (analogue) signals. There are many linear filters which are not analogue in implementation (digital filter), and there are many electronic filters which may not have a passive topology – both of which may have the same transfer function of the filters described in this article. Analogue filters are most often used in wave filtering applications, that is, where it is required to pass particular frequency components and to reject others from analogue (continuous-time) signals.Analogue filters have played an important part in the development of electronics. Especially in the field of telecommunications, filters have been of crucial importance in a number of technological breakthroughs and have been the source of enormous profits for telecommunications companies. It should come as no surprise, therefore, that the early development of filters was intimately connected with transmission lines. Transmission line theory gave rise to filter theory, which initially took a very similar form, and the main application of filters was for use on telecommunication transmission lines. However, the arrival of network synthesis techniques greatly enhanced the degree of control of the designer.Today, it is often preferred to carry out filtering in the digital domain where complex algorithms are much easier to implement, but analogue filters do still find applications, especially for low-order simple filtering tasks and are often still the norm at higher frequencies where digital technology is still impractical, or at least, less cost effective. Wherever possible, and especially at low frequencies, analogue filters are now implemented in a filter topology which is active in order to avoid the wound components required by passive topology.It is possible to design linear analogue mechanical filters using mechanical components which filter mechanical vibrations or acoustic waves. While there are few applications for such devices in mechanics per se, they can be used in electronics with the addition of transducers to convert to and from the electrical domain. Indeed some of the earliest ideas for filters were acoustic resonators because the electronics technology was poorly understood at the time. In principle, the design of such filters can be achieved entirely in terms of the electronic counterparts of mechanical quantities, with kinetic energy, potential energy and heat energy corresponding to the energy in inductors, capacitors and resistors respectively.".
- Passive_analogue_filter_development wikiPageExternalLink books?id=23rBH11Q9w8C&printsec=frontcover.
- Passive_analogue_filter_development wikiPageExternalLink S0002-9904-1929-04747-5.
- Passive_analogue_filter_development wikiPageExternalLink cauer.pdf.
- Passive_analogue_filter_development wikiPageExternalLink Page_020-029.pdf.
- Passive_analogue_filter_development wikiPageID "23431648".
- Passive_analogue_filter_development wikiPageRevisionID "603880184".
- Passive_analogue_filter_development hasPhotoCollection Passive_analogue_filter_development.
- Passive_analogue_filter_development subject Category:Analog_circuits.
- Passive_analogue_filter_development subject Category:Electronic_design.
- Passive_analogue_filter_development subject Category:Filter_theory.
- Passive_analogue_filter_development subject Category:History_of_electronic_engineering.
- Passive_analogue_filter_development subject Category:Linear_filters.
- Passive_analogue_filter_development type AnalogCircuits.
- Passive_analogue_filter_development type Artifact100021939.
- Passive_analogue_filter_development type Circuit103033362.
- Passive_analogue_filter_development type Device103183080.
- Passive_analogue_filter_development type ElectricalDevice103269401.
- Passive_analogue_filter_development type Filter103339643.
- Passive_analogue_filter_development type Instrumentality103575240.
- Passive_analogue_filter_development type LinearFilters.
- Passive_analogue_filter_development type Object100002684.
- Passive_analogue_filter_development type PhysicalEntity100001930.
- Passive_analogue_filter_development type Whole100003553.
- Passive_analogue_filter_development comment "This article is about the history and development of passive linear analogue filters used in electronics. For linear filters in general see Linear filter. For electronic filters in general see Electronic filter.Analogue filters are a basic building block of signal processing much used in electronics.".
- Passive_analogue_filter_development label "Analogfilter".
- Passive_analogue_filter_development label "Filtro analógico".
- Passive_analogue_filter_development label "Passive analogue filter development".
- Passive_analogue_filter_development label "Аналоговый фильтр".
- Passive_analogue_filter_development sameAs Analogfilter.
- Passive_analogue_filter_development sameAs Filtro_analógico.
- Passive_analogue_filter_development sameAs m.017csq.
- Passive_analogue_filter_development sameAs Q359205.
- Passive_analogue_filter_development sameAs Q359205.
- Passive_analogue_filter_development sameAs Passive_analogue_filter_development.
- Passive_analogue_filter_development wasDerivedFrom Passive_analogue_filter_development?oldid=603880184.
- Passive_analogue_filter_development isPrimaryTopicOf Passive_analogue_filter_development.