Patent ID: 9544029
Date: 2017-01-10
CPC Classifications: H01Q,H04B,H04W

Claim:
1. A method of operating an antenna array having a plurality of rows of discrete radiators, the method comprising: generating first pairs of outputs using outputs from a plurality of the discrete radiators at an interior of the rows, wherein each pair of outputs comprises a first output and an orthogonal output orthogonal to the first output; azimuthally shifting the first outputs to produce first azimuthally-shifted outputs; azimuthally shifting the orthogonal outputs to produce second azimuthally-shifted outputs; generating a second pair of outputs orthogonal to each other using outputs from a plurality of the discrete radiators at a first end of the rows; generating a third pair of outputs orthogonal to each other using outputs from a plurality of the discrete radiators at a second end of the rows; elevationally shifting one of the second pair of outputs to produce a first coverage beam; elevationally shifting one of the third pair of outputs to produce a second coverage beam; elevationally shifting the first azimuthally-shifted outputs to produce a first steerable spotlight beam; and elevationally shifting the second azimuthally-shifted outputs to produce a second steerable spotlight beam.