Title:
補正手段付時分割2重送受信装置
Document Type and Number:
Japanese Patent JP5170739
Kind Code:
B2
Abstract:
There is provided a time-division duplex transmit-receive apparatus in which the respective amplitude and phase characteristics of N sets of transmitting unit-receiving unit pair connected with N antenna elements are corrected all together and at the same time. At the time of reception, the reference signal from reference signal generator is branched into N reference signals. The branched reference signal is applied to the reception system through the transmit-receive switching switch. The reception-side error detector detects the error between the output signal of the reception-side amplitude-phase correction circuit and the reference signal to control the reception-side amplitude-phase correction circuit so that the error becomes zero. At the time of transmission, a part of transmitting signal is applied to the reception system through the antenna path. The transmission-side error detector detects the error between the output signal of the reception-side amplitude-phase correction circuit and the transmitting signal to control the transmission-side error detector so that the error becomes zero.
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Inventors:
Yoshihiko Takeuchi
Application Number:
JP2007286945A
Publication Date:
March 27, 2013
Filing Date:
November 05, 2007
Export Citation:
Assignee:
Japan Radio Co., Ltd.
International Classes:
H04B7/10
Domestic Patent References:
| JP2002208812A | ||||
| JP2003309513A | ||||
| JP2001053663A | ||||
| JP2000013454A | ||||
| JP2002353865A |
Attorney, Agent or Firm:
Yoshihiro Yawata