The invention includes a mechanical scanning feed and a spherical lens antenna system. The mechanical feed includes a waveguide, which has a movable wall assembly that contains a guide slot. The moveable wall portion also includes an end wall that is located proximate to the guide slot to prevent leakage...http://www.google.fr/patents/US7301504?utm_source=gb-gplus-shareBrevet US7301504 - Mechanical scanning feed assembly for a spherical lens antenna
Mechanical scanning feed assembly for a spherical lens antenna
