AMPLIFYING DEVICE - SHIMADA PHYSICAL CHEM IND CO

Title:

AMPLIFYING DEVICE

Document Type and Number:

Japanese Patent JP2006222629

Kind Code:

A

Abstract:

To provide an amplifying device which amplifies signals of various bands through a single amplifier.

The amplifying device 1a is composed of an amplifier 10 which is capable of operating on signals of a prescribed band; and filter-type matching circuits 21 to 23 and 31 to 33 which are provided to the input and the output of the amplifier 10 so as to make an impedance matching between the amplifier 10 and the prescribed external units, and enable signals of specific bands within a certain band possessed by the amplifier 10 to penetrate through them. The filter-type matching circuits 21 to 23 and 31 to 33 each have their own specific bands respectively, and the filter-type matching circuits 21 to 23 and 31 to 33 function as a load on the amplifier only on their specific frequency bands.

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Inventors:

AKIMOTO AKIRA
YOSHINO KOSUKE
MAIWA KEITA

Application Number:

JP2005033031A

Publication Date:

August 24, 2006

Filing Date:

February 09, 2005

Export Citation:

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Assignee:

SHIMADA PHYSICAL CHEM IND CO

International Classes:

H03F3/60; H03F1/42; H03F3/189

Domestic Patent References:

JPH0447701A	1992-02-17
JPH1056340A	1998-02-24
JP2003188606A	2003-07-04
JP2004091266A	2004-03-25

Attorney, Agent or Firm:

Masatake Suzuki

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