Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LEAKAGE PREVENTING DEVICE
Document Type and Number:
Japanese Patent JPS59169216
Kind Code:
A
Abstract:

PURPOSE: To minimize the leakage of high frequency signals to a power supply input terminal by providing a power supply input terminal part where a high frequency absorber is inserted and an input/output terminal part for high frequency signals in response to the parts of a leakage preventing device which are partitioned in terms of high frequency.

CONSTITUTION: For instance, a high frequency absorber 4 of epoxy-iron, ferrite, etc. is inserted into a power supply input terminal 2 to absorb the high frequency signals to be applied to the terminal 2. For a package 3, an input/output terminal for high frequency signals and the terminal 2 are set opposite to each other on a package mounting surface of a leakage preventing device which is partitioned previously into a high frequency part 15 and a power supply circuit (bias circuit) 18 in terms of high frequency. In such a constitution of the package 3, the circuit 18 can be connected directly to the terminal 2. Thus, the leakage of high frequency signals to the power supply side is minimized.


Inventors:
Asari, Noriyuki
Application Number:
JP1983000044997
Publication Date:
September 25, 1984
Filing Date:
March 16, 1983
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NEC CORP
International Classes:
H03H7/01; H03H1/00; (IPC1-7): H03H7/01
Domestic Patent References:
JP55164835B