| 摘要 |
PURPOSE:To match the phase of each diversity branch without rejecting the random phase, by using one diversity branch as a master and the other as a slave. CONSTITUTION:An input signal from a reception antenna 2 is mixed with a local signal of a local oscillator 9, the output is fed to an output terminal 13 via a band pass synthesizer 10 and a band pass filter 11 and further a limiter, and it is mixed with an input signal from a reception antenna 1 by feeding it back to a frequency mixer 3. The output of the frequency mixer 3 is applied to a frequency mixer 5 via a band pass filter 7 and it is mixed with an input signal from the reception antenna 1 and the output is applied to the band pass synthesizer 10. Thus, the phase of a signal in the diversity branch including the reception antenna 1 can be made equal to the phase of the other diversity branch without rejecting random phases theta1, theta2. |
