Phased array technology in Australia

Australia has been developing and fielding phased array appUcations since the early 1950s. The application areas range from radio astronomy and atmospheric sciences, through over-the-horizon radar (OTHR), surface wave, microwave ship, and airborne systems. Given Australia´s unique geographical size, position, single continent, and national identity, it is not surprising that much of this effort has focused on long range over-the-horizon technology both for environmental observation and surveillance of the extensive land and maritime regions of national interest and responsibility. This discussion will draw focus on just a few of the historical and current programs finishing with an overview of the current application of actiive phased array developments for ship defence.