Active phased array antenna unit-level inner monitoring device

Abstract

The invention provides an active phased array antenna unit-level inner monitoring device. The active phased array antenna unit-level inner monitoring device comprises a microstrip patch antenna array,a coupling feeder line, an equal-power-dividing power divider, an absorption resistor, a microwave dielectric substrate and a radio frequency monitoring port. The microstrip patch antenna array unitcan adopt any patch form, and the array can adopt any array arrangement mode; the absorption resistor is connected to one end of the coupling feeder line, and the other end is used for performing cascading on the coupling feeder lines through the equal-power-dividing power divider; the length of the coupling feeder line can be adjusted according to actual design requirements, and the microstrip patch antenna array units of any numbers can be covered; and the microstrip patch antenna array, the coupling feeder line and the equal-power-division power divider are all printed on the single-layer microwave dielectric substrate. The microstrip patch antenna array and the monitoring module are integrated, so that the quantity of equipment and the number of cables can be reduced, and compared withthe conventional monitoring module which adopts a multilayer lamination or multilayer board penetration interconnection technology, the monitoring module of the invention is easy to machine and implement, and has the characteristics of being low in cost, high in reliability, high in integration level and convenient to manufacture and assemble.

Description

technical field [0001] The invention relates to an active phased array antenna unit-level monitoring device. Background technique [0002] The active phased array antenna is composed of thousands of radiating elements, and the required beam shape and direction are formed by controlling the amplitude and phase relationship of each radiating element. When the active phased array antenna is working, due to the change of the working condition of the T / R component, the amplitude and phase of the channel radiation unit of the array will change, which will affect the performance of the phased array antenna. Therefore, the amplitude and phase of each antenna unit must be accurately measured in real time. monitoring, correction and compensation to ensure the performance of the active phased array antenna. Therefore, a high-performance monitoring system is a necessary equipment for high-performance active phased array antennas. A good monitoring system plays a very important role in ...

AI Technical Summary

Problems solved by technology

The "internal monitoring" technology is mature, the performance is relatively stable, and it is suitable for the use in the actual working environment. However, the "internal monitoring" method currently used generally requires a large amount of hardware equipment, high cost, and requires the use of a large number of cables, making active The space layout in the phased array antenna is tight

Moreover, the traditionally designed internal monitoring module often adopts lamination technology or multi-layer interconnection technology, which has the problems of high processing precision, difficult process and high cost.

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