Circularly disposed antenna array: Difference between revisions

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The '''Wullenweber''' is a type of Circularly Disposed Antenna Array (CDAA) sometimes referred to as a Circularly Disposed Dipole Array (CDDA). It is a large circular antenna array used by the military to [[Triangulation|triangulate]] radio signals for intelligence gathering and the occasional maritime rescue. The antenna is colloquially known as the ''elephant cage''. "Wullenweber" was a [[cover]] term the used to identify the German World War II development program, its name no relationship a person involved in the program.

CDAA technology was developed by the German navy signal intelligence research and development center (Nachrichtenversuchsanstalt der Marine NVA) during the early years of [[World War II]]. The inventor was NVA group leader Dr. Hans Rindfleisch, who worked after the war as a Technical Director for the northern Germany official broadcast (Norddeutscher Rundfunk - NDR). Technical team leaders were Dr. Pietzner, Dr. Schelhorse, and Dr. Wächtler. The latter was a co-founder of Plath Co and later a consultant to Plath and [[Telefunken]] (electronic companies). Although the three men retired in West Germany, some of their second-echelon technicians were taken to the [[USSR]] after the war. 20At toleast 30 Krug arrays -- knowntheir ascodename Krugin arraysthe USSR -- were installed inall over the USSRSoviet Union and allied countries before the U.S. military became interested and developed their own versions of the technology. Curiously, several Krug arrays were installed as pairs within less than 10 km kilometers of each other. At least three Krug arrays were installed near Moscow just to the north, east and south of the city.

The first Wullenweber array was built during the war at Joring, Denmark; however, it was destroyed following the war in accordance with the Geneva Convention. Dr. Wachtler arranged to have a second array built, at Telefunken expense, at Langenargen/Bodensee, for further experiments after the war. In the years following the war, the U.S. disassembled the Langenargen/Bodensee array and brought it back to the U.S.