Patent Number: 6,426,727

Title: Dipole tunable reconfigurable reflector array

Abstract: The present invention provides a low-cost, frequency-tunable, steerable, reflector array capable of simulating the electromagnetic effects of a parabolic or similarly-shaped reflector on a planar or conformal surface. Simple scatterers such as short circuited dipoles, disposed on a geometrically planar or conformal substrate, are configured from a series of scatterer sub-elements, electrically connected serially to one another by MEMS switches. These connected scatterer sub-elements form a reflective array disposed above a ground plane on the substrate. By properly controlling the length and spacing of the activated dipole elements, it is possible to simulate the equiphase reflection profile of a horn feed or sub-reflector feed of a parabolic or similar reflector. In addition, the array may be steered by selectively controlling the scatterer configurations.

Inventors: Gilbert; Roland (Milford, NH)

Assignee: BAE Systems Information and Electronics Systems Integration Inc.

International Classification: H01Q 3/46 (20060101); H01Q 19/10 (20060101); H01Q 19/19 (20060101); H01Q 1/42 (20060101); H01Q 3/00 (20060101); H01Q 001/38 ()

Expiration Date: 07/30/2019