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Need some pointers on building UHF/microwave 50 ohm termination/power splitter

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January 6th 06, 11:16 PM posted to rec.radio.amateur.antenna,rec.radio.amateur.misc,sci.electronics.design

Gary Cavie

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Need some pointers on building UHF/microwave 50 ohm termination/power splitter

In article ,
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Hi all,

I need a couple of accessories to enable me to make some phase
measurements with my HP network analyzer. I'd thought I could pick
these up on ebay easily enough, but note the lack of availably with
surprise and dismay.
I need to therefore contrive two precision parts:

Firstly, 50 ohm load that's essentially non-reactive up to 1.3Ghz.
Power handling only need be a few tens of miliwatts. N-type
connection.

Secondly, a 50 ohm power splitter (one feed-in; three outputs) N-type
connections, again flat up to 1.3Ghz. No switching needed, thankfully.

If I can't source these parts elsewhere, how feasible is it to make
them up and can anyone point me to any designs on the web that might
fit the bill?

I'm aware that the introduction of any stray reactances into the
devices will render all subsequent measurements invalid so I need to
get these parts right. At least 1.3Ghz capability should be achievable
for a hobbyist with care.

Thanks,
P.

Hi Paul,

Take a look at Mini-circuits (www.mini-circuits.com). They seem to stock
what you are after.

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