Phased array antenna with isotropic and non-isotropic radiating and omnidirectional and non-omnidirectional receiving elements

A phased array antenna system comprising:

• a first plurality of radiating array elements, each said radiating element in said first plurality having a first radiating pattern;
• a second plurality of radiating array elements, each said radiating element in said second plurality having a second radiating pattern comprising a radiating pattern of less than half of said first radiating pattern, in the vertical plane;
• each said radiating array element in said second plurality comprising a radiator having an isotropic radiating pattern and a lens to focus the radiated waves into the said non-isotropic radiating pattern;
• said isotropic radiating pattern comprising a field of at least 120° in azimuth and 90° in elevation;
• said non-isotropic radiating pattern comprising a field of less than half of said field of said isotropic radiating pattern in elevation;
• and
• each lens of the second plurality of array elements comprising a cylindrical lens that focuses the waves in the vertical plane.

A phased array antenna system comprising:

• a first plurality of receiving array elements, each said receiving element in said first plurality having a first receiving field of view;
• a second plurality of receiving array elements, each said receiving element in said second plurality having a second receiving field of view of less than half of said first receiving field of view, in the vertical plane;
• each said receiving array element in said second plurality comprising a receiver having an omnidirectional field of view and a lens to focus the received waves into said non-omnidirectional field of view in the vertical plane;
• said omnidirectional field of view comprising a field of at least 120° in azimuth and 90° in elevation;
• said non-omnidirectional field of view comprising a field of less than half of said field of said omnidirectional field of view in elevation;
• and
• each lens of the second plurality of array elements comprising a cylindrical lens that focuses the waves in the vertical plane.