I too would be very interested in any designs and / or practical
implementations that anyone can recommend. I would like to be able to run
my current amplifier project in a different room, and want to incorporate
the ability to monitor power out, and SWR, remotely.
73
Denis MW0CBC / GW8OQV
========================================
Message Received: Jan 16 2014, 06:28 AM
From: "Geert PA3CSG" <pa3csg@hoeplakee.nl>
To: amps@contesting.com
Cc:
Subject: [Amps] high power dual directional coupler
Hello!
I am looking for a design of a directional coupler for HF, 1.8 to 30 MHz
or if possible 50 MHz.
Sofar I tried the original Bruene, that was not referenced to ground,
and a tandem coupler were I "smoked" the toroid after a while.
I tried to work one out in LT spice but I don't trust my spice skills ....
Demands:
Frequency range 1.8 - 30 MHz
Several Kw
Coupling in the range of 30dB or more
High directivity
Dual coupling to do Pwr / SWR measurements.
A "how to design" or a complete design would be nice.
Thank you!
73 Geert PA3CSG
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