| 摘要 |
PURPOSE: To provide a diversity equipment capable of efficiently performing transmission by the power amplifier of low output. CONSTITUTION: This diversity equipment for performing diversity transmission and reception by at least two or more plural antennas 101, 102, 103 and 104 for both transmission and reception arranged spatially with a distance for performing the transmission and the reception by a single frequency is provided with transmission/reception switching means 105, 106, 107 and 108 switched by transmission/reception switching signals, the plural power amplifiers 119, 120, 121 and 122 for amplifying transmission signals, first hybrid circuits 133 and 135 arranged in front of the power amplifiers for distributing the transmission signals to the respective parallel power amplifiers, second hybrid circuits 132 and 134 arranged at the back of the plural power amplifiers for synthesizing the output signals of the respective parallel power amplifiers and a transmission antenna selection switch means 118 for sending out the transmission signals to the first hybrid circuits based on a reception level. |
