[SI-LIST] Re: RO4350B vs Megtron6

  • From: Cristian Gozzi <cristian.gozzi@xxxxxxxxx>
  • To: Lee Ritchey <leeritchey@xxxxxxxxxxxxx>, si-list@xxxxxxxxxxxxx
  • Date: Sun, 12 Jul 2015 01:26:29 +0000

Thanks a lot for your insight and valuable feedback
Regards
Cristian

On Sat, Jul 11, 2015, 2:44 PM Lee Ritchey <leeritchey@xxxxxxxxxxxxx> wrote:

As an example, Split Post Cavity measures Megtron 4 at .0099 at 2 GHz and
Bereskin measures it at .014. Our tests show that the Bereskin number is
very close to the real number.

As you might imagine, some laminate suppliers will use Split Post Cavity as
it makes their material look better. Beware!

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On
Behalf Of Cristian Gozzi
Sent: Friday, July 10, 2015 2:15 PM
To: Lee Ritchey; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: RO4350B vs Megtron6

30% lower for both or only for one material against the other?
Or did I misunderstand the meaning of your sentence

Thanks
Cristian

Il giorno ven 10 lug 2015 alle ore 14:12 Lee Ritchey <
leeritchey@xxxxxxxxxxxxx> ha scritto:

Should have said very little difference. The Bereskin test method
results in the most accurate answer. Split Post Cavity results in
losses that are about 30% lower than the actual value.

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]
On
Behalf Of Lee Ritchey
Sent: Friday, July 10, 2015 12:29 PM
To: cristian.gozzi@xxxxxxxxx; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: RO4350B vs Megtron6

When measured with the same methods there is very little difference.

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]
On
Behalf Of Cristian Gozzi
Sent: Friday, July 10, 2015 11:57 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] RO4350B vs Megtron6

Hi SI community
I'm wondering if someone can share with me his experience on PCB
losses measurement for the Rogers RO4350B vs Panasonic's Megtron6

From Datasheet it seems that Megtron6 has lower Df=0.002 than RO4350B
Df=0.004, so I should expect lower losses... (even taking into account
the same Cu foil roughness for both)

Have some of you any data/measurement experience to share?

thanks
Regards
Cristian


------------------------------------------------------------------
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



------------------------------------------------------------------
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






------------------------------------------------------------------
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






------------------------------------------------------------------
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: