Raytheon Company

Henry J Nizko

Mark E Russell

Yueh-Chi Chang

David V Manoogian

Shane D Blair

W Gordon Woodington

Maurice J Toolin

Jonathan H Walzer

Wayne Kim, Jr

Methods and apparatus for an antenna having first and second nested monopoles each having arms with bends. In some embodiments, the monopoles are offset in clocking angle. In some embodiments, the monopoles are aligned in clocking angle. In embodiments, the bends in the arms may be located at half a total height of the antenna.

Nested wire monopole HF antenna

A detection system includes a plurality of sensors including an entry sensor having a field of view oriented to detect object entry with respect to an entry portion of an occupancy volume, and an exit sensor having a field of view oriented to detect object exit with respect to an exit portion of the occupancy volume, the exit portion different than the entry portion. The detection system further includes at least one approach sensor having a field of view oriented to detect object approach relative to the entry portion of the occupancy volume, and at least one retreat sensor having a field of view oriented to detect object retreat relative to the exit portion of the occupancy volume.

System and method for occupancy detection

Growing community of inventors

Melbourne, FL, United States of America

Henry J Nizko