Analog Devices International Unlimited Company

John A Kilpatrick

Islam A Eshrah

Phased arrays to be used for Tx and Rx communications in different frequency bands are disclosed. The phased arrays presented herein are non-uniformly thinned half-duplex phased arrays with dual-band antenna elements. Such phased arrays are 'half-duplex' in that they are configured for communication in one direction at a time, i.e., either for Tx or for Rx, while utilizing a common array. Such phased arrays are 'with dual-band antenna elements' in that, in addition to using antenna elements configured for Tx or for Rx only, they implement some antenna elements that are configured for both Tx and Rx. Such phased arrays are &#x201c;thinned&#x201d; in that they are formed according to a method of optimizing array geometry known as &#x201c;thinning.&#x201d; Such phased arrays are thinned &#x201c;non-uniformly&#x201d; in that different antenna elements used for Tx may have different numbers of nearest and/or second-nearest neighbor antenna elements used for Rx, or vice versa.

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Wakfield, MA, United States of America

John A Kilpatrick