PHASED ARRAY TRANSMISSION DEVICE

Transmission output detectors 161, 162 extract transmission outputs of a plurality of transmission branches 101, 102, and an inter-branch error detector 110 detects a combined signal level of the transmission outputs of the transmission branches to obtain an error detection signal. A correction cont...

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Bibliographische Detailangaben
Hauptverfasser:	SATO, Junji, MUKAI, Hirohito, MATSUO, Michiaki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	Transmission output detectors 161, 162 extract transmission outputs of a plurality of transmission branches 101, 102, and an inter-branch error detector 110 detects a combined signal level of the transmission outputs of the transmission branches to obtain an error detection signal. A correction controller 130 calculates an amplitude error between the transmission branches based on an error detection signal which is obtained by turning ON/OFF output operations of the transmission branches 101, 102, and calculates a phase error between the transmission branches based on an error detection signal which is obtained by changing the phases of the transmission branches 101, 102. A phase controller 180 and an amplitude controller 190 correct the amplitude error and the phase error. The inter-branch error detector 110 can be configured by a simple circuit which is formed by a detector, and which can be mounted in a small size and low power.