[SI-LIST] Re: FR4 permittivity
- From: "Syed Razeen Raj Mohamed - ERS, HCL Tech" <syed.raj@xxxxxxx>
- To: "cyril.chastang@xxxxxxxxxxxxxxx" <cyril.chastang@xxxxxxxxxxxxxxx>, "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Thu, 21 Feb 2013 18:20:15 +0530
Hi Cyril,
I've used a similar material in a design, the value was around 2.6, that was
for design of power dividers for base station antennae.
Thanks & Regards
Razeen.
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of CHASTANG Cyril
Sent: Thursday, February 21, 2013 5:53 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] FR4 permittivity
Hi,
I have recently received a PCB (dielectric= Isola PLC-FR-370HR) and its
certificate of compliance (extract below). The value of the material
permittivity given below is quite surprising (2.173) to be FR4. Is it the
effective permittivity for a microstrip? Is there a mistake in the certificate?
[cid:image001.png@01CE1035.1EA257F0]
Have you ever seen a FR4 permittivity like that ?
Thank you for your help.
Cyril
[@@ THALES GROUP INTERNAL @@]
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List forum is accessible at:
http://tech.groups.yahoo.com/group/si-list
List archives are viewable at:
//www.freelists.org/archives/si-list
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
::DISCLAIMER::
----------------------------------------------------------------------------------------------------------------------------------------------------
The contents of this e-mail and any attachment(s) are confidential and intended
for the named recipient(s) only.
E-mail transmission is not guaranteed to be secure or error-free as information
could be intercepted, corrupted,
lost, destroyed, arrive late or incomplete, or may contain viruses in
transmission. The e mail and its contents
(with or without referred errors) shall therefore not attach any liability on
the originator or HCL or its affiliates.
Views or opinions, if any, presented in this email are solely those of the
author and may not necessarily reflect the
views or opinions of HCL or its affiliates. Any form of reproduction,
dissemination, copying, disclosure, modification,
distribution and / or publication of this message without the prior written
consent of authorized representative of
HCL is strictly prohibited. If you have received this email in error please
delete it and notify the sender immediately.
Before opening any email and/or attachments, please check them for viruses and
other defects.
----------------------------------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List forum is accessible at:
http://tech.groups.yahoo.com/group/si-list
List archives are viewable at:
//www.freelists.org/archives/si-list
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
