一種高隔離度的共用天線無線掃描裝置，其包含天線模組、隔離模組、控制模組、第一開關、第二開關、發射端及接收端。隔離模組與天線模組連接。控制模組與隔離模組、第一開關及第二開關連接。發射端及接收端分別與第一開關及第二開關連接。控制模組整合在第一掃描半徑內進行掃描的短/中距離模式及在第二掃描半徑內進行掃描的近距離模式，第一掃描半徑大於第二掃描半徑，控制模組在近距離模式時持續導通第一開關及第二開關，而控制模組在短/中距離模式時以切換時序切換第一開關和第二開關。 A high-isolation common antenna wireless scanning device includes an antenna module, an isolation module, a control module, a first switch, a second switch, a transmitter and a receiver. The isolation module is connected to the antenna module. The control module is connected to the isolation module, the first switch and the second switch. The transmitter and the receiver are connected to the first switch and the second switch, respectively. The control module integrates a short/medium-distance mode for performing scanning by a first scanning radius and a near-distance mode for performing scanning by a second scanning radius. The first scanning radius is greater than the second scanning radius. The control module keeps turning on the first switch and the second switch in the near-distance mode, and the control module switches the first switch and the second switch according to a switching time sequence in the short/medium-distance mode.
