this antenna resembles the Motorola Dipole 800Mhz antenna, as well as the old "bag-phone" style antenna, which too contained a 90* angle connection.
With my experience with the Motorola dipole and their 800Mhz 6" whip, there is only marginal difference with the dipole.
I don't know what it looks like inside but it seems to be two quarter wave 800Mhz antennas with a center fed connection judging by the lack of bendability in the middle, that or a loading coil of some sort.
I'm not about to dismantle it either.
-Josh