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Patent Searching and Data


Title:
RADIATION NOISE MEASUREMENT ARRANGEMENT OF TRANSMISSION CHANNEL
Document Type and Number:
Japanese Patent JP2014190830
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a radiation noise measurement arrangement of a transmission channel capable of precisely evaluating noises by focusing on the noises radiated from a transmission channel.SOLUTION: A radiation noise measurement arrangement 1 of a transmission channel includes: a pentagonal anechoic chamber 2; a shield box 4 placed on a nonmetal table 3 disposed in the pentagonal anechoic chamber 2; a receiver antenna 6 attached to a post 5 disposed at a position separated away by a predetermined distance from the shield box 4; and a noise measurement device (not shown) disposed outside of the anechoic chamber 2, which is connected to the receiver antenna 6 via a cable 7. A transmission cable 8 as a transmission channel for transmitting signals extends from the shield box 4. The transmission cable 8 as an evaluation target of radiation noises is placed being exposed in the pentagonal anechoic chamber 2. A coating body 10 is disposed 30 mm or more separated away from pull-out portion of the transmission cable 8 which is pulled out of the shield box 4 from a simulation signal source box 9.

Inventors:
NAKASE MASAKI
Application Number:
JP2013066500
Publication Date:
October 06, 2014
Filing Date:
March 27, 2013
Export Citation:
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Assignee:
MURATA MFG CO LTD
International Classes:
G01R29/08; H01Q17/00; H05K9/00
Attorney, Agent or Firm:
Takeshi Minegishi