The reason I bought it was that there was a whole bunch of it available
at the Central States VHF Society conference this past weekend. They
did have some slightly thicker stuff and maybe I should've bought some
of that as well. Oh well, I'm stuck with this, so I'll have to try to
use it...it's for a homebrew 902 beacon using a few MAR-4 devices. I
will have to measure the lead width on these devices, but they might
just be about the same as my calculated stripline width of 0.0195".
This would be a good thing, but I agree, it may be a bit challenging to
make a strip that narrow on the board (a magnifying lens and a very
sharp scalpel!)....

Scott


laura halliday wrote:

Scott wrote:


Question: Does anybody know how to calculate the width of a 50 Ohm
microstrip line on Arlon PTFE circuit board (Type GX-0065-45-11). It is
0.0065" thick, double sided and has a k=2.45. Looking at my chart, it
looks like I leave the bottom as complete copper groundplane and take
off all copper around stripline on the top side of the board and leave
the stripline as 0.0195" wide? That doesn't sound very wide!!

Scott
N0EDV


It isn't very wide at all.

I've built stuff on 15 mil 5880, twice as thick as your
paper-thin material. And it was still a handful.

What are you building? Why so thin?

Laura Halliday VE7LDH "That's a totally illegal,
Grid: CN89mg madcap scheme. I like it!"
ICBM: 49 16.05 N 122 56.92 W - H. Pearce