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

摘要

A LOCALIZER ANTENNA ARRAY FOR USE WITH LOCALIZER TRANSMITTERSOPERATING AT ONE CARRIER FREQUENCYABSTRACTA broadband localizer antenna array with an even number of elementsis supplied by a backmatched power dividing network comprising two chainsof directional couplers and a group of hybrids which divide the poweramong the elements in accordance with geometrical progessions. The centerelements in the array may be spaced 0.6 wavelength apart at the averagefrequency. Other spacings between the elements are greater than 0.6wavelength.