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Title:
VARIABLE RESISTANCE ATTENUATOR
Document Type and Number:
Japanese Patent JPH06104676
Kind Code:
A
Abstract:

PURPOSE: To obtain the resistance attenuator whose attenuation is made variable in which three resistors being components of a π or T-shaped resistance attenuator are formed respectively with plural resistors and a prescribed resistor is short-circuited in response to the attenuation among the division resistors.

CONSTITUTION: Two resistors 5, 6 are provided between an input terminal 1 and an output terminal 2, a series circuit of resistors 7, 8 is loaded between a connecting point of the two resistors 6 and ground. For example, then an attenuator whose attenuation quantity T2 for a microwave propagated from the input terminal 1 to the output terminal 2 is obtained by short-circuiting the resistors 5, 8. Furthermore, the attenuator whose attenuation is T1 is obtained by short-circuiting the resistors 6, 7 conversely. Furthermore, the attenuator whose attenuation is T1.T2 is obtained when any of the resistors 5-8 is not short-circuited. Thus, the variable resistance attenuator whose attenuation is variable from T1 to T1.T2 is obtained.


Inventors:
KIYONO KIYOHARU
Application Number:
JP1992000254464
Publication Date:
April 15, 1994
Filing Date:
September 24, 1992
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01P1/22; H03H7/24; (IPC1-7): H03H7/24; H01P1/22
Attorney, Agent or Firm:
高田 守