E-plane Reconfigurable Antenna with Wide and Narrow Beam Switching

In this paper, a reconfigurable antenna with E - plane wide and narrow beam switching is proposed. The antenna consists of a floor, two short walls and two micro-strip radiation patches. Ten MEMS switches were loaded on the short walls and five MEMS switches were loaded between the two micro-strip radiation patches. Through these fifteen switches, the antenna can be switched between wide beam and narrow beam. In this paper, the working frequency band of the antenna is 3.35GHz-3.6GHz, and the impedance bandwidth is 7.2%. At the center frequency of 3.475GHz, the width of the antenna's E-plane can reach 265.31° in the wide beam condition, and the width of the antenna's E-plane can reach 55.2° in the narrow beam condition, and the gain is 9.5dBi.