I'm trying to figure out what satellite antennas I should build next, so I ran some simulations of signal strengths for various ground station and satellite antenna combinations, given a tumbling satellite like the foxes. It turns out a dipole or whip antenna on the satellite is not so good, because some fraction of the time is spent in its null (when the long axis of the antenna is pointed toward ground). It's more reliable to have an omnidirectional, circularly polarized antenna on the bird, which is why things like this exist:
https://gomspace.com/shop/subsystems/communication-systems/nanocom-ant430.as...
It's similar to the design on Lilacsat-2. It would also make your Lindenblad very happy.
I'll have to write something up for the Journal.
-Stephen, N8URE