Design of a quasi-endfire phased array

A new method of designing a quasi-endfire phased array is presented in this paper. To improve antenna gain and realize quasi-endfire scanning, the five elements array of microstrip Yagi antenna located by steps distribution was made. The simulated results show that the array can realize quasi-endfire scanning from 60 ° to 80 ° off broadside direction in the H-plane with a high gain of 12dBi exhibiting superior low elevation angles scanning performance, which is of great importance in some applications such as satellite low-elevation tracking.