A C-band Multi Beam Quasi-Yagi Array Antenna

A multi beam antenna based on switch selection is proposed. the antenna is composed of Single Pole Eight Throw switch and eight 1x4 Quasi-Yagi array antennas. The 1x4 Quasi-Yagi array antenna is selected because of its low-cost advantage. The gain of the 1x4 Quasi-Yagi array antenna is about 15dBi, the beam width is about 45 degrees in E-plane, eight 1x4 Quasi-Yagi array antennas realize the 360 degrees coverage in azimuth direction. The multi beam antenna working state can be selected by controlling code according to the communication target direction. The control code is composed of 3 bit “0” or “1” from “000” to “111” correspond to antenna number 1 to 8. Thus, the multi target communication is realized by controlling switch state.