GB2338073B - Testing immunity to electromagnetic fields - Google Patents

Testing immunity to electromagnetic fields

Info

Publication number
GB2338073B
GB2338073B GB9811781A GB9811781A GB2338073B GB 2338073 B GB2338073 B GB 2338073B GB 9811781 A GB9811781 A GB 9811781A GB 9811781 A GB9811781 A GB 9811781A GB 2338073 B GB2338073 B GB 2338073B
Authority
GB
United Kingdom
Prior art keywords
port
under test
network
equipment under
test port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9811781A
Other versions
GB2338073A (en
GB9811781D0 (en
Inventor
Richard Carlile Marshall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9811781A priority Critical patent/GB2338073B/en
Publication of GB9811781D0 publication Critical patent/GB9811781D0/en
Publication of GB2338073A publication Critical patent/GB2338073A/en
Application granted granted Critical
Publication of GB2338073B publication Critical patent/GB2338073B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
    • G01R31/002—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing where the device under test is an electronic circuit

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

A coupling and decoupling network (CDN) comprises a radio frequency input port, an associated equipment port and an equipment under test port. A multiple conductor common-mode choke coil L1 is arranged between the associated equipment port and the equipment under test port and a plurality of resistors R3 - R6 are arranged for injecting the radio frequency signal into the equipment under test port. A variable connection system may be used to interconnect the common-mode choke and injection resistors to allow the use of one network for a variety of different cable types. At least part of this variable connection system may be located within cable connectors. Voltage monitoring means may be included in the network to improve the efficiency of power transfer.
GB9811781A 1998-06-03 1998-06-03 Testing immunity to electromagnetic fields Expired - Fee Related GB2338073B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9811781A GB2338073B (en) 1998-06-03 1998-06-03 Testing immunity to electromagnetic fields

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9811781A GB2338073B (en) 1998-06-03 1998-06-03 Testing immunity to electromagnetic fields

Publications (3)

Publication Number Publication Date
GB9811781D0 GB9811781D0 (en) 1998-07-29
GB2338073A GB2338073A (en) 1999-12-08
GB2338073B true GB2338073B (en) 2002-07-24

Family

ID=10833044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9811781A Expired - Fee Related GB2338073B (en) 1998-06-03 1998-06-03 Testing immunity to electromagnetic fields

Country Status (1)

Country Link
GB (1) GB2338073B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2375178B (en) * 2001-03-29 2004-11-24 Richard Carlile Marshall Testing immunity to and emission of electromagnetic fields

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179502A (en) * 1985-08-22 1987-03-04 Emc Datacare Ltd Radio frequency choke
US5536978A (en) * 1994-11-01 1996-07-16 Electric Power Research Institute, Inc. Net current control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179502A (en) * 1985-08-22 1987-03-04 Emc Datacare Ltd Radio frequency choke
US5536978A (en) * 1994-11-01 1996-07-16 Electric Power Research Institute, Inc. Net current control device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
1993 International Symposium on Electromagnetic Compatibility, Symposium Record pp 99 - 104, publish *
ed New York, Aug.1993, Y Hiroshima et al, "Proposals of coupling and decoupling network for immunity *
testing at telecommunication line ports" *

Also Published As

Publication number Publication date
GB2338073A (en) 1999-12-08
GB9811781D0 (en) 1998-07-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050603