MULTIRANGE DEVICE FOR SELECTING, AMPLIFYING AND CONVERTING SIGNALS Russian patent published in 2017 - IPC H04B1/18 

FIELD: radio engineering, communication.

SUBSTANCE: multichannel device for selecting, amplifying and converting signals comprises M subrange channels. Each channel input is connected to the input of device, and the output is the output for both channel and device. Each channel comprises a series-connected input, an input subrange bandpass filter, a first controllable attenuator, a first radio frequency amplifier, a subrange tunable bandpass filter, a second radiofrequency amplifier, a second controllable attenuator, an analog-to-digital converter, and an output. The subrange bandpass filter includes the first inductor in which the first terminal is connected to an input potential terminal of the device, and the second terminal is connected to the first terminal of the first capacitor whose second terminal is connected to the first terminals of the second and third capacitors, the second terminal of the second capacitor is connected to the common bus, the second terminal of the third capacitor is connected to the first terminal of the second inductor, in which the second terminal is connected to the first terminals of the fourth and fifth capacitors, the second terminal of the fourth capacitor is connected to the common bus, the second terminal of the fifth capacitor is connected to the first terminal of the third inductor, in which the second terminal is connected to the first terminal of the sixth capacitor and to the output potential terminal, the second terminal of the sixth capacitor is connected to the common bus. The subrange tunable bandpass filter contains a common bus, input and output potential terminals, first and second coils.

EFFECT: increasing the sensitivity in each radio channel.

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