[Antennas] Antenna-Related Patents

Wed Oct 15 13:19:32 EDT 2008

Chris Trask wrote:
> Binocular core assemblies intended for use as baluns for power levels
> up
> to 1KW are readily available from Communications Concepts and at least one
> other commercial vendor. Design engineers who are involved with power
> amplifiers and antennas are fully aware of these, and they were described
> in
> all of the Granberg/Dye Motorola application notes for HF/VHF power
> amplifiers as much as 30 years ago.
>> Chris

The only assemblies I see on CC's site are made up from individual
toroids stacked up. This is not a "binocular" core as defined in
the patent, because it does not have a top surface and bottom surface
and a rib. Now you might say it works just a well, and I wouldn't
argue that, but it doesn't count as far as the patent is concerned.
Rick N6RK