Many thanks, Kent.
Subject: Re: [UKMicrowaves] Vivaldi ant
Think of it as another way to feed a horn.
Hard to get a Vivaldi above 8 dBi or so gain.
Ridged horns can easily go to 20 dBi.
Of course the EMI horn is playing other games to get a more
constant Antenna Factor.
The Copper ones are mine, the 'PTI' is one at the EMI
lab I use for FCC/CE certifications.