TW200740362A - Structure for suppressing electromagnetic radiation of printed circuit board with network module - Google Patents

Structure for suppressing electromagnetic radiation of printed circuit board with network module

Info

Publication number
TW200740362A
TW200740362A TW095112241A TW95112241A TW200740362A TW 200740362 A TW200740362 A TW 200740362A TW 095112241 A TW095112241 A TW 095112241A TW 95112241 A TW95112241 A TW 95112241A TW 200740362 A TW200740362 A TW 200740362A
Authority
TW
Taiwan
Prior art keywords
pcb
layer
network module
electromagnetic radiation
network
Prior art date
Application number
TW095112241A
Other languages
Chinese (zh)
Other versions
TWI280847B (en
Inventor
Cheng-Heng Yen
zhen-zhan Xu
Original Assignee
Mitac Int Corp
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 Mitac Int Corp filed Critical Mitac Int Corp
Priority to TW95112241A priority Critical patent/TWI280847B/en
Application granted granted Critical
Publication of TWI280847B publication Critical patent/TWI280847B/en
Publication of TW200740362A publication Critical patent/TW200740362A/en

Links

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Structure Of Printed Boards (AREA)

Abstract

The present invention discloses a structure for suppressing electromagnetic radiation of a printed circuit board (PCB) with a network module, where the PCB is a multi-layer PCB comprising a first signal layer, a power layer, a grounding layer, and a second signal layer. The network module having an integrated circuit for controlling network functions and a network port is disposed on one of the side surfaces of the PCB and coupled with each circuit layer of the PCB. On the power layer, an area at the position of network port is divided and disposed as an analog ground (AGND) and a plurality of decoupling capacitors are connected between the AGND and the grounding layer of the PCB. The prevent invention can prevent the electromagnetic-coupled noise generated by the network module and the power layer from radiating outward in the way of electromagnetic radiation from the network port, so that the PCB can meet the requirements of the related electromagnetic interference (EMI) standards.
TW95112241A 2006-04-06 2006-04-06 Structure for suppressing electromagnetic radiation of printed circuit board with network module TWI280847B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW95112241A TWI280847B (en) 2006-04-06 2006-04-06 Structure for suppressing electromagnetic radiation of printed circuit board with network module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW95112241A TWI280847B (en) 2006-04-06 2006-04-06 Structure for suppressing electromagnetic radiation of printed circuit board with network module

Publications (2)

Publication Number Publication Date
TWI280847B TWI280847B (en) 2007-05-01
TW200740362A true TW200740362A (en) 2007-10-16

Family

ID=38742623

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95112241A TWI280847B (en) 2006-04-06 2006-04-06 Structure for suppressing electromagnetic radiation of printed circuit board with network module

Country Status (1)

Country Link
TW (1) TWI280847B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101686610B (en) * 2008-09-25 2012-10-17 深圳富泰宏精密工业有限公司 Printing circuit board

Also Published As

Publication number Publication date
TWI280847B (en) 2007-05-01

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees