Research on a new kind of high directivity end-fire antenna array

In this paper, a new kind of end-fire array was built by employing high directivity plate end-fire antenna as the basic element based on electromagnetic surface wave theory. Being different from normal end-fire array, in the new array, high directivity plate end-fire antenna elements were arranged end to end along the end-fire direction, and the interelement spacing and uniform progressive phase were carefully adjusted to achieve high directivity. The simulations and measurements showed that the whole array achieved 19.2 dB directivity with four elements at 14.7 dB directivity each.