Distributed-element circuits are electrical circuits composed of lengths of transmission lines or other distributed components. Used mostly at microwave frequencies, they perform the same functions as conventional circuits composed of passive components, such as capacitors, inductors, and transformers. They are made by patterning the conducting medium itself, rather than connecting pre-manufactured components with the medium. A major advantage is that they can be produced cheaply on printed circuit boards for consumer products, such as satellite television. They are also made in coaxial and waveguide formats for applications such as radar, satellite communication, and microwave links. Distributed element circuits were used in radar in World War II, and later in military, space, and broadcasting infrastructure. Improvements in materials science led to broader applications, and they can now be found in domestic products such as satellite dishes and mobile phones.
Read more: <https://en.wikipedia.org/wiki/Distributed-element_circuit> _______________________________ Today's selected anniversaries: 1789: The Brabant Revolution, sometimes considered as the first expression of Belgian nationalism, began with the invasion of the Austrian Netherlands by an émigré army from the Dutch Republic. <https://en.wikipedia.org/wiki/Brabant_Revolution> 1889: Sir Henry Parkes, the premier of the Colony of New South Wales, gave a speech where he called for the federation of the six Australian colonies. <https://en.wikipedia.org/wiki/Tenterfield_Oration> 1912: First Balkan War: Serbian forces defeated the Ottoman army at the Battle of Kumanovo in the Kosovo Vilayet. <https://en.wikipedia.org/wiki/Battle_of_Kumanovo> 1949: The cornerstone of the United Nations headquarters was laid in New York City. <https://en.wikipedia.org/wiki/Headquarters_of_the_United_Nations> _____________________________ Wiktionary's word of the day: coin of the realm: 1. (law, dated) The legal money of a country. 2. (figuratively) Something that is valued like money within a particular context. <https://en.wiktionary.org/wiki/coin_of_the_realm> ___________________________ Wikiquote quote of the day: Most people do not listen with the intent to understand; they listen with the intent to reply. --Stephen Covey <https://en.wikiquote.org/wiki/Stephen_Covey> _______________________________________________ Wikipedia Daily Article mailing list. To unsubscribe, visit: https://lists.wikimedia.org/mailman/listinfo/daily-article-l Questions or comments? Contact [email protected]
