| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: invention relates to microwave phased antenna arrays and can be used in passive and active radar for continuous concurrent surveillance of space. A multibeam microwave linear antenna array includes N transceiving modules, each having an antenna element, an amplifier with microwave switches, a microwave divider and a beam-forming device. A two-dimensional antenna array comprises P linear multibeam microwave antenna arrays. Each linear array is a row, wherein each M board of elementary adders further includes a microwave divider on K channels, connected to the output of a monolithic amplifier. Outputs of the channels of dividers of each board in each row are shifted by a step equal to L/M, where L is the length of the board. Outputs of the row are connected by vertical columns, which are beam-forming devices. The total number of outputs of the boards of the columns in receiving mode is equal to M×K, where each output matches its own beam in space. In transmission mode, outputs of K board of M columns are converted to inputs of channels (beams) emitted by the active phased antenna array.EFFECT: enabling formation of an existing fan of narrow beams, covering the entire monitored solid angle by both a one-dimensional and a two-dimensional antenna array.2 cl, 7 dwg |
