Phased array transmitting means

Extracting a plurality of transmission branches through transmission output detecting means (161, 162) (101, 102) of the transmission output, the error detection means between branches composite signal level between the transmission output of each transmission branch (110), and obtain an error detection signal. By correcting the control unit (130), the output operation based on the respective transmission branch (101, 102) on / off the resulting error detection signal, calculates the amplitude error between the transmitting branch, based on the respective transmission branch (101, 102) the resulting phase change of the error detection signal, calculates the phase error between the transmitting branch and to correct amplitude and phase errors through the phase controlling means (180) and the amplitude control unit (190). Detecting an error between the branch unit (110) by using the detecting unit can be small and low power mounted simple circuit configuration.