PLUGIN Handbook 2019

Hyperfrequencies ccording to the most commonly accepted de nition*, the microwave represents electro- magnetic waves whose wavelength are of the order of a centimeter, and which are used in particular in radar technology and in radio transmission. Radar has been a major contributor to microwave development: studies conducted during and after the Second World War at the Massachu- setts Institute of Technology led to the development of literature on microwave foundation, technology, and measurement techniques . Subsequently, new areas of use have emerged, for example in terrestrial radio-relay telecommunications, in military countermeasures systems and, of course in Space. Within these 20 years of existence, Plug In has developed new versions based on the ERVAC® feedthrough design mounted with connector types going from 1,5 GHz (D-Sub Mixed layout) up to 65 GHz (PC 1.85). *(source: Encyclopaedia Universalis) 23