And those structures aren't part of the shield generator. They're two antennas of the Alaska Satellite Facility operated by the University of Alaska, Fairbanks.

The antenna on the left, AS-3, was recently completed and put online. The other antenna shown above is AS-1 with AS-2 (shown below) is located elsewhere on UAF property.

The Alaska Satellite Facility is part of the Near Earth Network that supports various space operations.

Images via NASA