Enhanced bandwidth single layer current sheet antenna

An array of radiating elements comprising:

• a first plurality of antenna elements in a first plane positioned adjacent to one another in an array, said first plurality of planar antenna elements configured for operating on a first band of frequencies;
• a second plurality of planar antenna elements adjacent to one another in an array configuration and forming a cluster within said first plurality of antenna elements, said second plurality of antenna elements positioned in said first plane interposed among said first plurality of planar antenna elements and configured for operating on a second band of frequencies distinct from said first band of frequencies;
• a first effective ground plane for said first plurality of antenna elements;
• a second effective ground plane for said second plurality of antenna elements;
• and wherein said first plurality of elements are low band antenna elements for operating on a lower band of frequencies, said second plurality of elements are high band antenna elements for operating on a relatively higher band of frequencies, and a first spacing between said first plurality of elements and said first effective ground plane is different from a second spacing between said second plurality of elements and said second effective ground plane.

An array of radiating elements comprising:

• a first plurality of antenna elements in a first plane positioned adjacent to one another in an array, said first plurality of planar antenna elements configured for operating on a first band of frequencies;
• a second plurality of planar antenna elements adjacent to one another in an array configuration, said second plurality of antenna elements positioned in said first plane interlaced among said first plurality of planar antenna elements and configured for operating on a second band of frequencies distinct from said first band of frequencies;
• a first effective ground plane for said first plurality of antenna elements;
• a second effective ground plane for said second plurality of antenna elements;
• a first spacing between said first plurality of elements and said first effective ground plane different from a second spacing between said second plurality of elements and said second effective ground plane;
• and
• wherein said second effective ground plane is a low pass frequency selective surface interposed between said second plurality of antenna elements and said first effective ground plane.