Patent ID: 6667724
Filing Date: 2003-12-23
Classification: G01S,H01Q

Abstract:
An impulse radar antenna comprising:(a) an antenna control system; (b) a substantially planar ground element having a first surface and a second surface; and (c) a plurality of antenna elements coupled with said antenna control system; a first set of antenna elements of said plurality of antenna elements being electrically coupled with said first surface in a first array; a second set of antenna elements of said plurality of antenna elements being electrically coupled with said first surface in a second array; each respective antenna element of said plurality of antenna elements being configured for handling ultra wideband electromagnetic signals; said first array and said second array being substantially symmetrically arranged on opposing sides of an axis in said first surface; each respective antenna element of said first set having a most proximate antenna element of said second set; said antenna control system controlling driven pairs of antenna elements of said plurality of antenna elements in a plurality of driving modes; each driven pair of said antenna elements comprising a first pair member selected from said first set and a second pair member selected from said second set; in a first driving mode of said plurality of driving modes said second pair member is said most proximate antenna element of said first pair member; in other said driving modes of than said first driving mode said second pair member is more distal from said first pair member than said most proximate antenna element of said first pair member.