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Modularized waveguide correction network applied to highly integrated phased array system

A highly integrated and calibrated network technology, applied in waveguides, waveguide-type devices, transmitter monitoring, etc., to achieve the effects of good consistency, improved installation accuracy, and controllable machining accuracy

Active Publication Date: 2017-12-12
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem of integration of large-array series-fed correction network, the present invention aims to provide a modular waveguide correction network suitable for highly integrated phased array system, making it suitable for large or different non-rectangular aperture highly integrated phase Array control system

Method used

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  • Modularized waveguide correction network applied to highly integrated phased array system
  • Modularized waveguide correction network applied to highly integrated phased array system
  • Modularized waveguide correction network applied to highly integrated phased array system

Examples

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Effect test

Embodiment 1

[0034] see figure 1 , the modular waveguide correction network in the one-dimensional scanning active phased array consists of an expansion installation board 1 and two correction modules 2 . The phased array requires one-dimensional scanning of 8°, and the element spacing calculated according to the phased array formula is 0.76 times the free space wavelength. The main waveguide spacing is consistent with it, and is also set to 0.76 times the free space wavelength. The spacing between adjacent main waveguides of different correction modules is also set to 0.76 times the free space wavelength.

[0035] see image 3 One side of the expansion mounting board 1 is provided with eight main waveguide installation holes 11 and two correction waveguide installation holes 12 , one load hole 13 and one correction hole 14 which are connected with two correction modules 2 . see figure 2 , a load hole 13 and a correction hole 14 on both sides go through the expansion mounting plate; s...

Embodiment 2

[0040] see Figure 5 , the correction network is used in a two-dimensional phased array, scanning 30° in the horizontal direction and 5° in the vertical direction. The element spacing in the horizontal direction calculated according to the phased array formula is 0.63 times the free space wavelength. The main waveguide spacing is consistent with it, and is also set to 0.63 times the free space wavelength. The spacing between adjacent main waveguides of adjacent correction modules in the same line is also set to 0.68 times the free-space wavelength. The cell spacing in the vertical direction calculated according to the phased array formula is 0.68 times the free space wavelength. The distance between the centers of the adjacent row correction modules in the vertical direction is also set to be 0.68 times the free space wavelength. The difference from Embodiment 1 is that each correction module includes eight main waveguides and one correction waveguide. The whole correction...

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Abstract

The invention relates to a modularized waveguide correction network applied to a highly integrated phased array system. The network comprises an expansion installation plate and more than two correction modules, wherein the correction module is formed by coupling more than two main waveguides with a correction waveguide, wherein interfaces at one ends of the main waveguides on the same sides of the more than two correction modules, bend openings at two ends of the correction waveguide, more than four main waveguide installation holes on an expansion installation plate and more than four correction waveguide installation holes are connected in a cooperative manner; when in use, interfaces on the other side of the expansion installation plate are connected with a transmitting-receiving component, a load and a correction receiver or a correction transmitter; interfaces at the other ends of the main waveguides on the same sides of the more than two correction modules are connected with an antenna array. According to the network provided by the invention, the correction module is used as a basic unit, and machining accuracy is controllable; short waveguide sections are spliced to replace a long waveguide section, and thus machining and assembly problems of the long waveguide section are avoided. The expansion installation plate is smoother than the long waveguide section, and installation accuracy of the antenna array is enhanced.

Description

technical field [0001] The invention belongs to the technical field of waveguide correction networks for phased array antenna systems, and in particular relates to a modular waveguide correction network suitable for highly integrated phased array systems. Background technique [0002] In a phased array antenna system, the pattern information is the result of combining signals from multiple channels. In order to synthesize an accurate pattern, it is necessary to correct the amplitude and phase characteristics of each channel, that is, to obtain the inherent relative amplitude and phase information of each channel. In operation, the amplitude and phase modulation of each channel needs to subtract the inherent relative amplitude and phase information. [0003] There are two common implementations of band correction networks: [0004] 1. Parallel-fed correction network, in each final stage of the Wilkinson power divider, the energy of the corresponding channel is coupled thr...

Claims

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Application Information

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IPC IPC(8): H04B17/12H01Q23/00H01P3/12
CPCH01P3/12H01Q23/00H04B17/12
Inventor 高初赖清华江涛张晨刘琦
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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