Title:
PREDISTORTION CIRCUIT
Document Type and Number:
Japanese Patent JP2003060445
Kind Code:
A
Abstract:
To enlarge a loss change width.
A resistor R1 is connected to an output terminal of a buffer amplifier 11. An output terminal OUT of a predistortion circuit 1 appears an output at the ratio of a differentiated resistance of an FET 12 to a sum of an internal resistance Rs of a signal source 2 and the resistor R1. Since the differentiated resistance increases, when an amplitude of an input increases, the loss change width of the predistortion circuit 1 can be enlarged by setting a value of the resistor R1.
Inventors:
KITAMURA KEIICHI
HOSODA TAKAYUKI
HOSODA TAKAYUKI
Application Number:
JP2001247752A
Publication Date:
February 28, 2003
Filing Date:
August 17, 2001
Export Citation:
Assignee:
YRP KOKINO IDOTAI TSUSHIN KENK
International Classes:
H03F1/32; (IPC1-7): H03F1/32
Attorney, Agent or Firm:
Yasuo Asami (3 outside)