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#1
February 1st 06, 10:41 AM
posted to rec.radio.amateur.homebrew
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stripline@ 75 Ohm
1.2mm on G10 , 1,6mm thick glass epoxi board will give you a Z0 of 75
ohms from DC to daylight. Saandy 4Z5KS |
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#2
February 1st 06, 04:33 PM
posted to rec.radio.amateur.homebrew
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stripline@ 75 Ohm
Thanks a lot Saandy
Wim pe1pme |
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#3
February 2nd 06, 11:14 AM
posted to rec.radio.amateur.homebrew
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stripline@ 75 Ohm
i can send you a small gem of a program, very fit for amateur use. if
your interested, write me at the email directly. Saandy 4Z5KS |
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#4
February 2nd 06, 11:47 AM
posted to rec.radio.amateur.homebrew
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stripline@ 75 Ohm
"Saandy , 4Z5KS" wrote in message ups.com... i can send you a small gem of a program, very fit for amateur use. if your interested, write me at the email directly. Saandy 4Z5KS Or download "AppCad" free from Hewlett Packard. It does both microstrip and stripline and as they say on Madison Avenue, "So much more". W4ZCB |
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#5
February 2nd 06, 06:14 PM
posted to rec.radio.amateur.homebrew
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stripline@ 75 Ohm
It's a long and twisty path...
When Hewlett-Packard split off the test and measurement, life sciences, medical and semiconductor businesses in 2000 as Agilent Technologies, AppCAD went to Agilent. But last year, Agilent split off the Semiconductor Products Group, which is now a new company, Avago Technologies. Because AppCAD supports design of circuits using the semiconductors, it went to the new company. If you go to http://www.avagotech.com/ and search for appcad, you will pretty much immediately find a link to the Avago-supported version. (You can also get there by searching for appcad on the Agilent home page, but it will redirect you to Avago.) Cheers, Tom Cheers, Tom |
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#6
February 1st 06, 05:59 PM
posted to rec.radio.amateur.homebrew
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stripline@ 75 Ohm
Not so, Saandy. He said STRIPLINE, not microstrip. Now he may not know the
difference, but that is an incorrect value for stripline. WHich is it, microstrip (open face) or stripline (sandwich)? Jim "Saandy , 4Z5KS" wrote in message ups.com... 1.2mm on G10 , 1,6mm thick glass epoxi board will give you a Z0 of 75 ohms from DC to daylight. Saandy 4Z5KS |
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#7
February 1st 06, 10:24 PM
posted to rec.radio.amateur.homebrew
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stripline@ 75 Ohm
what's the difference?
Is "open face"on a singlesided pcb and "sandwich" on a doublesided pcb? I use a doublesided pcb with one side as a groundplane. tnx, Wim |
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#8
February 2nd 06, 04:41 PM
posted to rec.radio.amateur.homebrew
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stripline@ 75 Ohm
No. Microstrip is the transmission line on one side of a double-sided PCB
and the ground plane on the other side. Stripline is with TWO PCBs with the transmission line sandwiched on one of the boards and ground planes on BOTH the outside layers. It makes for a much improved shielding at the expense of much more complex mechanical assembly. Jim wrote in message ll.nl... what's the difference? Is "open face"on a singlesided pcb and "sandwich" on a doublesided pcb? I use a doublesided pcb with one side as a groundplane. tnx, Wim |
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#9
February 2nd 06, 05:59 PM
posted to rec.radio.amateur.homebrew
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stripline@ 75 Ohm
wrote:
what's the difference? You should do some homework, http://www.ansys.com/industries/mems..._micostrip.pdf or in a shorter format http://tinyurl.com/dxtvu Cheers, Galen, W8LNA |
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#10
February 3rd 06, 10:23 PM
posted to rec.radio.amateur.homebrew
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stripline@ 75 Ohm
Thank you all for your input and help!
Now i can live on  73, Wim PE1PME |
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