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Phased-array antenna system with online internal monitoring function and internal monitoring method

A phased array antenna and function technology, applied in the field of radio frequency communication, can solve the problems of increasing volume and weight cost, and achieve the effect of improving maintainability and reducing miniaturization

Active Publication Date: 2021-08-27
成都雷电微力科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a phased array antenna system with an in-line monitoring function in view of the above-mentioned problems, so as to solve the problem that the phased array antenna can realize the internal high-precision amplitude phase on-line on the original carrier after delivery. monitoring with the lowest possible added volume and weight costs

Method used

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  • Phased-array antenna system with online internal monitoring function and internal monitoring method
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Embodiment 1

[0038] A phased array antenna system with in-line monitoring, see attached figure 1 , figure 2 , including an antenna array 1 , a TR component 2 , a radio frequency switch network 3 , a frequency conversion component 4 , a signal processor 5 and a coupling network 15 .

[0039] The antenna array 1 is a signal transmitting and receiving device, which is responsible for converting the "bound" electromagnetic field signal in the TR component and the "free" electromagnetic wave signal in space according to the agreed rules.

[0040] The coupling network 15, as an in-line monitoring network link, can be arranged anywhere in the phased array antenna system in principle, but for the comprehensiveness and systematicness of the online monitoring, the coupling network 15 is integrated with the antenna array 1 Design, that is, the monitoring network directly collects the coupling signal of each antenna unit in the antenna array 1, and the coupling network 15 adopts a series-parallel co...

Embodiment 2

[0048] This embodiment discloses a phased array antenna system with in-line monitoring function, the phased array antenna system is similar to the phased array antenna system in Embodiment 1, the only difference is that, see the attached figure 1 or attached figure 2 , in this embodiment, the radio frequency switch network 3 further includes: a radio frequency link coupling the network 15 and the absorption load 36 . When the phased array antenna is in the working state instead of the self-monitoring state, in order to reduce the influence of the coupling network on the phased array antenna itself, the coupling network 15 is switched to the state of connecting the absorbing load 36 to reduce the crosstalk of the coupling signal to the phased array Antenna effects.

Embodiment 3

[0050] This embodiment discloses a structure of the radio frequency switch network 3 in the above embodiment, such as figure 1 , figure 2 shown.

[0051] The radio frequency switch network 3 includes a power divider 37, which is connected to the TR component 2, and at the same time, the power divider 37 is also connected to the frequency conversion component 4, so as to transmit the up-conversion signal processed by the frequency conversion component 4 to the TR component 2, or The signal received by the TR component 2 is delivered to the frequency conversion component 4 for down-conversion. The TR component 2 is divided into several TR sub-arrays, and the power splitter 37 is respectively connected to each TR sub-array to achieve the effect of power splitting or beam combining.

[0052] The power divider 37 is connected to the TR component 2, and its other end needs to be connected to the up-converter 41 and the down-converter 43 (not connected simultaneously). For this, t...

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Abstract

The invention discloses a phased-array antenna system with an online internal monitoring function and an internal monitoring method. The system comprises an antenna array, a TR assembly, a radio frequency switch network, a coupling network, a frequency conversion assembly and a signal processor, the antenna array is interconnected with the TR assembly, the frequency conversion assembly comprises an upper frequency converter and a lower frequency converter, the frequency conversion assembly is interconnected with the signal processor, and the coupling network is connected with each antenna sub-array of the antenna array; the radio frequency switch network comprises a radio frequency link between the TR assembly and the up-converter and the down-converter, and a radio frequency link between the coupling network and the up-converter and the down-converter. When internal monitoring is executed, radio frequency links between the frequency conversion assembly and the TR assembly and between the frequency conversion assembly and the coupling network are connected or disconnected respectively, and internal monitoring data can be obtained. According to the invention, the phased-array antenna and the frequency conversion assembly of the on-line self-monitoring network can be shared, and miniaturization and low cost of the system are realized.

Description

technical field [0001] The invention relates to the field of radio frequency communication, in particular to a portable phased array antenna system with an in-line monitoring function and a corresponding in-line monitoring method. Background technique [0002] Due to its microsecond-level beam scanning capability, high-efficiency power-aperture product, flexible beamforming capability, higher system redundancy, and independence from servo systems, active phased array antennas have become more and more popular in recent years. favored by designers of radar or communication systems. However, since the phased array antenna is composed of hundreds or thousands of channels, and each channel contains multi-chip and multi-devices such as processing and control, the structure is relatively complex. Before delivery to the end user, a large number of calibrations and tests will be performed to ensure the performance Up to standard. However, after delivery to the end user, after a lo...

Claims

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Application Information

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IPC IPC(8): H04B17/19H04B17/29H04B7/06H04B7/08
CPCH04B7/0691H04B7/0874H04B17/19H04B17/29
Inventor 丁卓富王更生王震
Owner 成都雷电微力科技股份有限公司
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