US Patent 9979097 Expanding lattice notch array antenna and method of fabrication

The present disclosure is directed toward methods for forming an expanding lattice notch array antenna that includes a plurality of notch antenna elements extending from a surface of a base plate. The properties and dimensions of the notch antenna elements can be manipulated in order to provide an expanding notch array antenna whereby an area of a base portion of the array is different from an area of a top portion of the array, without increasing an overall height of the notch array antenna. The method includes coupling a first plurality of notch elements to a first surface of a base plate in a first orientation, expanding a second plurality of notch elements from a first state to a second state and coupling the second plurality of notch elements in the second state to the first surface of the base plate in a second orientation.