| 摘要 |
FIELD: radio engineering and communications.SUBSTANCE: invention relates to radio receiving devices of digital multielement active phased antenna arrays (AFAR). Radio receiving device consists of N channels, each channel has series-connected high frequency amplifier, input of which is input channel, a mixer, second input of which is heterodyne channel input and an intermediate frequency amplifier (IFA), control input of which is control input of channel, and output is output channel and is differential. Output of amplifier, first input of which is heterodyne input of device, is connected to series-connected directional coupler (DC) and power divider, N outputs of which are connected with heterodyne inputs of channels of device. Input of amplitude detector (AD) is connected to second output of DC, and output is connected to input of analogue-to-digital converter (ADC), output of which is connected to input of data control unit. Bidirectional control input of control unit is control input of device, first output is connected to control input of amplifier, rest of control outputs are connected to control inputs of channels of device.EFFECT: simplified adjustment of radio receiving device and possibility of its use in digital multielement AFAR with components in space.1 cl, 3 dwg |
