Title:
TRANSMISSION OUTPUT CONTROL CIRCUIT
Document Type and Number:
Japanese Patent JP2000022559
Kind Code:
A
Abstract:
To reduce power consumption in a transmitter output control circuit at the time of high output and at the time of low output.
At the time of high output, signals to be transmitted are led through a power amplifier circuit 11 to the port (a) of a circulator 4 and outputted from the port (b) of the circulator 4 and the port (c) of the circulator 4 is terminated by a terminating device 6. At the time of low output, the signals to be transmitted are led through a route bypassing the power amplifier circuit 11 to the port (c) of the circulator 4 and outputted from the port (b) of the circulator 4 through the port (a) of the circulator 4 and the power amplifier circuit 11 is turned off.
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Inventors:
HASEGAWA OSAMU
Application Number:
JP18873898A
Publication Date:
January 21, 2000
Filing Date:
July 03, 1998
Export Citation:
Assignee:
NEC CORP
International Classes:
H03F3/24; H03F1/02; H03F3/72; H04B1/04; (IPC1-7): H04B1/04; H03F3/24
Attorney, Agent or Firm:
Yosuke Goto (1 person outside)