Vision based methods for directional antenna boresight alignment

An antenna assembly, comprising:

• a directional antenna including a horn having a housing having a side piece with an opening;
• a reflecting surface movable through the opening from a first position away from a beam axis of the directional antenna to a second position along the beam axis;
• a light source configured to transmit a light beam to be incident on the reflecting surface, the light beam reflecting at the reflecting surface to project along the beam axis to a device under test;
• and
• a mounting stage for adjusting an alignment of the directional antenna to place the light beam at a desired location of the device under test.

A testing system, comprising:

• a device under test;
• a directional antenna at a location with respect to the device under test, the direction antenna including a horn having a housing having a side piece with an opening;
• a reflecting surface movable through the opening from a first position away from a beam axis of the directional antenna to a second position along the beam axis;
• a light source configured to transmit a light beam to be incident on the reflecting surface, the light beam reflecting at the reflecting surface to project along the beam axis to the device under test;
• and
• a mounting stage for adjusting an alignment of the directional antenna to place the light beam at a desired location of the device under test.