LOCALIZER ANTENNA ARRAY FOR USE WITH A LOCALIZER TRANSMITTER OPERATING SINGLE CARRIER FREQUENCY

摘要

A LOCALIZER ANTENNA ARRAY FOR USE WITH LOCALIZER TRANSMITTERS OPERATING AT ONE CARRIER FREQUENCY A broadband localizer antenna array with an even number of elements is supplied by a backmatched power dividing network comprising two chains of directional couplers and a group of hybrids which divide the power among the elements in accordance with geometrical progessions. The center elements in the array may be spaced 0.6 wavelength apart at the average frequency. Other spacings between the elements are greater than 0.6 wavelength.