Patent ID: 7791536
Filing Date: 2010-09-07
Classification: H01Q,H03F

Abstract:
1. A multi-aperture phased-array antenna system with shared transmit modules for selectively directing a beam of energy from one of the apertures, the system comprising: a plurality of antenna apertures, each aperture having an array of radiating elements; and a plurality of transmit modules, each transmit module coupled to one radiating element of each of the apertures and configured to selectively provide a high power output signal to a radiating element of only one of the apertures, wherein each transmit module comprises: a variable phase shifter ( a first low-power switch ( a second low-power switch ( a third low-power switch ( a first ninety-degree input coupler ( a second ninety-degree input coupler ( a third ninety-degree input coupler ( a fourth ninety-degree input coupler ( a first power amplification stage ( a second power amplification stage ( a third power amplification stage ( a fourth power amplification stage ( a first ninety-degree output coupler ( a second ninety-degree output coupler ( a third ninety-degree output coupler ( a fourth ninety-degree output coupler (