Dual Shaved Reifector Antenna for Airport CW radar

Modern airports require an accurate search radar to control the ground traffic in an airfield environment. The radar uses the CW mode to help operate in a high clutter area, covered with buildings and other obstacles. Two collinear, separate antennas are used for transmit and receive, requiring high isolation between them. The following article describes an approach to design of a low cost, dual inverted COSEC reflector antenna. The method combines manual design with hevy graphical display and accurate analysis program This approach was used to develop the antenna for the Elta ASDR EL-M2125 radar, which was tested at the Salt Lake City airport. The article describes the design procedure and the test results.