COMBINED ADAPTIVE ANTENNA ARRAY Russian patent published in 2021 - IPC H01Q21/00 H01Q3/26 

FIELD: antenna tech.

SUBSTANCE: invention can be used in radio-technical navigation systems when receiving navigation signals by the navigation equipment of the consumer of the global navigation satellite system (NEC GNSS) under conditions of intentional interference. The essence of the claimed solution lies in the use of two types of antenna elements in the antenna array with different designs and directivity characteristics, providing spatial differentiation of the useful signal and the interference signal. A combined adaptive antenna array is used, consisting of N peripheral antenna elements having a radiation pattern with a maximum in the horizontal plane and a minimum in the vertical plane and are tuned to receive an interference signal coming mainly from the horizontal direction, an adaptive processor whose outputs are connected to the inputs of N blocks of a complex signal weighting, a common adder, to which the outputs of the complex signal weighting units are connected, an antenna element is placed in the center of the antenna array, which has a directional pattern close to uniform in the upper hemisphere, providing reception of both a useful signal and an interference signal, the output of which is connected to the first summing input of the second adder, the second subtractive input of which is connected to the output of the first adder, and the output of the second adder is connected to the adaptive processor and is also the output of the device.

EFFECT: increased signal-to-noise ratio at the output of the adaptive antenna array.

1 cl, 8 dwg