Patent ID: 11921184
Assignee: LOCATA CORPORATION PTY LTD
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. An apparatus for forming a reciprocal beam at an antenna array, said apparatus comprising:
an antenna array having a plurality of spatially distributed antenna elements;, a switching network for activating said antenna elements in a predetermined sequence for transmitting or receiving signals;, a transmitter operatively associated with said antenna array for generating a signal and transmitting said signal through the sequentially activated antenna elements;, and, a receiver operatively associated with said antenna array for:, receiving incoming signals through said sequentially activated antenna elements;
applying phase or gain manipulations to received incoming signals in substantial synchronisation with said predetermined sequence, said phase or gain manipulations incorporating round-trip path corrections for said antenna array and being selected for forming a reciprocal beam of said antenna array in a predetermined direction; and
accumulating the manipulated incoming signals over an integration period to form said reciprocal beam.