Multidirectional antenna - A new approach to stacked beams

The multidirectional antenna is a linear array which is connected to a multiplex transmission line network. The schematic of the network and array is shown. The principle of operation of this antenna is then derived from an analysis of the forward scatter of a series-exoited array, the radiating elements of whioh are connected to the feedline by direotional couplers. A travelling wave progresses from the input terminal to the load terminal giving up power at each directional coupler to the corresponding radiating element. Many practical applications or this technique are possible. particularly wherever simultaneous surveillance of a wide angular sector with the resolution of a narrow beam is required.