Digital receiving module of active phased array antenna of x-band frequency range

The digital receiving module addresses gain control and protection issues in active phased antenna arrays by integrating protective devices and low-noise amplifiers, enhancing accuracy and reliability while reducing size and weight.

RU2865267C1Active Publication Date: 2026-07-01AKTSIONERNOE OBSHCHESTVO NAUCHNO PROIZVODSTVENNOE PREDPRIYATIE ISTOK IMENI A I SHOKINA
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Patent Information

Application Number
RU2025123043
Authority / Receiving Office
RU · RU
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2026-07-01
Estimated Expiration
2045-08-20

AI Technical Summary

Technical Problem

Existing receiving modules of active phased antenna arrays face issues such as lack of control and automatic adjustment of gain at varying temperatures, self-excitation at low temperatures, high power consumption, low integration level, complexity in construction, absence of protective devices leading to reduced reliability, and inability to adjust dynamic range for high-power signals.

Method used

A digital receiving module with a protective device, low-noise amplifiers, band-pass filters, signal mixers, attenuators, low-pass filters, matching amplifiers, a power divider, frequency multiplier, analog-to-digital converter, programmable logic integrated circuit, and control driver, which includes a microwave line, control bus, and supply voltage bus, allowing for automatic gain adjustment and protection against high power levels, while using ADCs with low cost and minimal power consumption.

Benefits of technology

Enhances the speed and accuracy of determining angular coordinates, increases detection range, reduces weight and size, improves integration and maintainability, and increases reliability of the digital receiving module.

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Abstract

FIELD: radio-electronic devices.SUBSTANCE: invention relates to the design of receiving modules of active phased antenna arrays of the X-band frequency range. A digital receiving module of an active phased antenna array of the X-band frequency range comprises a protective device, first and second low-noise amplifiers, first and second band-pass filters, first and second signal mixers, a step attenuator, first, second and third low-pass filters, first, second and third matching amplifiers, a power divider, a frequency multiplier, an analogue-to-digital converter, a programmable logic integrated circuit, a control driver, an antenna input of the module and an input of a local oscillator; according to the invention, the antenna input of the module is connected via a microwave line to the input of the protective device, the output of which is connected to the input of the first low-noise amplifier, the output of the first low-noise amplifier is connected to the input of the first band-pass filter, the output of the first band-pass filter is connected to the input of the first signal mixer, the output of the first signal mixer is connected to the input of the second low-noise amplifier, the output of the second low-noise amplifier is connected to the input of the second band-pass filter, the output of the second band-pass filter is connected to the input of the step attenuator, the output of the step attenuator is connected to the input of the second signal mixer, the output of the second signal mixer is connected via the first low-pass filter and the first matching amplifier to the input of the analogue-to-digital converter, the outputs of which are connected to the inputs of the programmable logic integrated circuit, the input of the power divider is connected to the input of the local oscillator, the first output of the power divider is connected via a frequency multiplier, the second low-pass filter and the second matching amplifier to the second input of the first signal mixer, the second output of the power divider is connected via a third low-pass filter and the third matching amplifier to the second input of the second signal mixer, the control driver is connected via a control bus to the output of the programmable logic integrated circuit and to the inputs of the step attenuator, and each active element has a supply voltage bus.EFFECT: increased speed and accuracy of determining the angular coordinates of a target in space and an increase in the detection range of objects, with a significant reduction in weight and size characteristics, an increase in the level of integration and manufacturability, and improved maintainability and reliability of the digital receiving module.1 cl, 1 dwg
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