Source for RF "pass-through"?

D

DaveC

Guest
Not sure of the proper name, but I'm looking for a connector that provides
connection through a bulkhead, from one PBC to another PCB. Not a "connector"
in the traditional sense. Both sides of it look like the back end of a
solder-type connector; just someplace to solder a wire.

I've searched Digi-Key, Mouser, and a few others, but can't find anything
like this. I've seen them in hi-f comm equipment.

I need one for 2.4 GHz.

Where can I find one?

Thanks,
--
DaveC
me@privacy.net
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Please reply in the news group
 
DaveC wrote:

Not sure of the proper name, but I'm looking for a connector that provides
connection through a bulkhead, from one PBC to another PCB. Not a "connector"
in the traditional sense. Both sides of it look like the back end of a
solder-type connector; just someplace to solder a wire.

I've searched Digi-Key, Mouser, and a few others, but can't find anything
like this. I've seen them in hi-f comm equipment.

I need one for 2.4 GHz.

Where can I find one?

Thanks,
Click to expand...
Well there are FeedThru capacitors, and there are Feedthrus without
capacitance, or should I say, minimal capacitance, maybe a few pF.
 
On Fri, 21 May 2004 13:57:20 -0700, Watson A.Name \Watt Sun - the Dark
Remover\ wrote
(in article <c8lqc3$75apd$2@hades.csu.net>):

I've searched Digi-Key, Mouser, and a few others, but can't find anything
like this. I've seen them in hi-f comm equipment.

I need one for 2.4 GHz.

Well there are FeedThru capacitors, and there are Feedthrus without
capacitance, or should I say, minimal capacitance, maybe a few pF.
Click to expand...
W/O is my preference.

Sources?
--
DaveC
me@privacy.net
This is an invalid return address
Please reply in the news group
 
DaveC wrote:
On Fri, 21 May 2004 13:57:20 -0700, Watson A.Name \Watt Sun - the Dark
Remover\ wrote
(in article <c8lqc3$75apd$2@hades.csu.net>):

I've searched Digi-Key, Mouser, and a few others, but can't find anything
like this. I've seen them in hi-f comm equipment.

I need one for 2.4 GHz.

Well there are FeedThru capacitors, and there are Feedthrus without
capacitance, or should I say, minimal capacitance, maybe a few pF.

W/O is my preference.

Sources?
--
DaveC
me@privacy.net
This is an invalid return address
Please reply in the news group
Click to expand...
How are you planning to deal with the impedance discontinuity at the
hole? If I was making one or two or these, I would pass teflon coax
through the hole with a band of the outer insulation removed, and
solder the braid to the wall.

--
John Popelish
 
On Wed, 19 May 2004 22:21:38 -0700, DaveC <me@privacy.net> wrote:

Not sure of the proper name, but I'm looking for a connector that provides
connection through a bulkhead, from one PBC to another PCB. Not a "connector"
in the traditional sense. Both sides of it look like the back end of a
solder-type connector; just someplace to solder a wire.

I've searched Digi-Key, Mouser, and a few others, but can't find anything
like this. I've seen them in hi-f comm equipment.

I need one for 2.4 GHz.

Where can I find one?

Thanks,
Click to expand...
Copper tape?






Remove "HeadFromButt", before replying by email.
 
W/O is my preference.
Click to expand...

I think what you're looking for is a bulkhead connector. Meant to pass RF
through a metal wall.

The others are thinking feedthrough capacitor, I think, which is a way to
feed DC or low freq signals through the metal wall, but not RF.
 
On Fri, 21 May 2004 18:21:36 -0700, Dave VanHorn wrote
(in article <WMidnX0ZloRgNzPdRVn-sw@comcast.com>):

I think what you're looking for is a bulkhead connector. Meant to pass RF
through a metal wall.

The others are thinking feedthrough capacitor, I think, which is a way to
feed DC or low freq signals through the metal wall, but not RF.
Click to expand...
Yes, that describes what I intend to do.

Source?
--
DaveC
me@privacy.net
This is an invalid return address
Please reply in the news group
 
On Fri, 21 May 2004 16:06:28 -0700, John Popelish wrote
(in article <40AE8B74.15BE7DF8@rica.net>):

How are you planning to deal with the impedance discontinuity at the
hole? If I was making one or two or these, I would pass teflon coax
through the hole with a band of the outer insulation removed, and
solder the braid to the wall.
Click to expand...
Let me ask for an expansion on that for a non-professional
hobbiest-experimenter's point of view: the capacitance of the metal as the
coax passes through will change the impedance of the coax?
--
DaveC
me@privacy.net
This is an invalid return address
Please reply in the news group
 
DaveC wrote:
On Fri, 21 May 2004 16:06:28 -0700, John Popelish wrote
(in article <40AE8B74.15BE7DF8@rica.net>):

How are you planning to deal with the impedance discontinuity at the
hole? If I was making one or two or these, I would pass teflon coax
through the hole with a band of the outer insulation removed, and
solder the braid to the wall.

Let me ask for an expansion on that for a non-professional
hobbiest-experimenter's point of view: the capacitance of the metal as the
coax passes through will change the impedance of the coax?
Click to expand...
As I understand it, you want to pass a 2.4 GHz signal through a metal
wall.

If you pass a wire through a hole in a metal wall, there is an abrupt
change in the impedance of that wire for high frequency waves
traveling along the wire that will cause a big reflection at the
hole. Only a fraction of the energy will pass through. If you pass a
coax through the hole, without breaking the outer braid, the wave is
not affected by the hole, even if the braid makes contact with the
wall.

Am I understanding what you are trying to do?

--
John Popelish
 
On Fri, 21 May 2004 19:07:42 -0700, DaveC <me@privacy.net> wrote:

On Fri, 21 May 2004 18:21:36 -0700, Dave VanHorn wrote
(in article <WMidnX0ZloRgNzPdRVn-sw@comcast.com>):

I think what you're looking for is a bulkhead connector. Meant to pass RF
through a metal wall.

The others are thinking feedthrough capacitor, I think, which is a way to
feed DC or low freq signals through the metal wall, but not RF.

Yes, that describes what I intend to do.

Source?
Click to expand...

www.johnsoncomponents.com







Remove "HeadFromButt", before replying by email.
 
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