''Defense Electronics'' (formerly ''RF Design'') is a

Penton Media Penton was an information services and marketing company. The company's three largest revenue streams came from events, digital and marketing services. Although Penton had a long history (see below) as a trade publisher, in 2015 it reported that ...

trade magazine A trade magazine, also called a trade journal or trade paper (colloquially or disparagingly a trade rag), is a magazine or newspaper whose target audience is people who work in a particular trade or industry. The collective term for thi ...

that covers radio frequency design. ''RF Design'' was started in 1978 and was published by Penton Media on a quarterly basis.

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*http://defenseelectronicsmag.com/ {{business-mag-stub Business magazines published in the United States Electrical and electronic engineering magazines Engineering magazines Magazines established in 1978 Magazines published in Tennessee Professional and trade magazines Quarterly magazines published in the United States