Novel Microstrip Phased Array Antenna for Highway ITS-Station
Jiahai Zhao, Xianghui Song, Yipeng Zhang, Ling Sun · CICTP 2017 · 2018
The requirements of communication area on lane in ITS-station system for highway status abstraction were analyzed. To expand the communication range and determine the lane that the vehicle is running, a new scheme of vehicle detection was presented. We use a narrow beam to detect one lane at one time and the narrow beam switch direction between the lanes. To implement the scheme, a novel design of 2×8 microstrip phased array antenna is proposed and designed for ITS-station. The phased array antenna can be electrically steerable, and the effective radiation pattern of the array can be reinforced in a desired direction and suppressed in undesired directions. The antenna is composed of a novel phase-shifting network, which consists of several groups of switch combination. By controlling the states of the switch combination, three narrow beam in -16°, 0°, 16° were formed, which respectively cover three lanes.