Importance

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Abstract

A feeding device for a smart antenna includes a signal reception terminal, a first antenna feeding terminal, a second antenna feeding terminal, a power divider, and a switching circuit. The signal reception terminal is utilized for receiving a transmitting signal. The first antenna feeding terminal and the second antenna feeding terminal are utilized for outputting feeding signals to the two antennas, respectively. The power divider, having a first input port, a second input port, a first output port, and a second output port, is utilized for distributing energy received by the first input port or the second input port equally to the first output port and the second output port, and making signals of the first output port and the second output port having 90 degree phase difference. The switching circuit performs switching operations to control electrical connections of the power divider according to a control signal.

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First Claim