Compact range collimator based on plane wave synthesis technology and optimization method thereof

A technology of plane wave and collimator, which is applied in the field of collimator devices with tight field, can solve the problems that the coupling effect between array elements cannot be fully considered, the optimization method is explained, and the calculation convergence is poor.

Active Publication Date: 2020-07-31
上海莱天通信技术有限公司
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Problems solved by technology

Although the calculation time is short, its disadvantage is that the coupling effect between array elements cannot be fully considered in the process of array synthesis, and the calculation convergence is po

Method used

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  • Compact range collimator based on plane wave synthesis technology and optimization method thereof
  • Compact range collimator based on plane wave synthesis technology and optimization method thereof
  • Compact range collimator based on plane wave synthesis technology and optimization method thereof

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Embodiment Construction

[0031] see figure 1 , which is a compact field test system using the collimator device based on plane wave synthesis technology proposed in this application. The compact field testing system is set in a dark room 10 , and the inner wall of the dark room 10 is covered with a wave-absorbing material 15 . A plane wave integrated array antenna collimator 20 is used to generate the quasi-plane wave required for the test, and a quiet zone 50 is realized in the darkroom 10 , and the device under test 30 is located in the center of the quiet zone 30 . The plane wave integrated array antenna 20 is the collimator device based on the plane wave integrated technology proposed in this application, and specifically includes an antenna array, a feeding network, a beamformer, and the like. The plane wave integrated array antenna 20 is set on the array support and the polarization turntable 25 , for example. The array bracket and the polarization turntable 25 are used to set up and adjust th...

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Abstract

The invention discloses a compact range collimator based on a plane wave synthesis technology and an optimization method thereof. The collimator is a plane wave comprehensive array antenna, based on the array near-field synthesis technology, the feed amplitude and the phase of each antenna unit in the plane wave comprehensive array antenna are controlled by adopting a particle swarm optimization algorithm to generate quasi-plane waves required by testing, and a dead zone is realized in a darkroom. The plane wave comprehensive array antenna adopts a rotational symmetry structure and is providedwith a parasitic unit and a decoupling structure; the plane wave comprehensive array antenna comprises an antenna array surface, the antenna array surface comprises a plurality of antenna units. According to the array near-field synthesis technology, plane wave synthesis is carried out by using a near-field directional diagram of each antenna unit in the plane wave synthesis array antenna, and array near-field synthesis is carried out by using the in-array near-field directional diagram considering the coupling effect between array elements. The collimator is advantaged in that the collimatoris high in convergence efficiency, good in optimization effect and high in design precision, and an ideal quiet zone is achieved in a large frequency band.

Description

technical field [0001] The present application relates to a collimator device in an antenna compact range test system, in particular to a compact range collimator device based on plane wave synthesis technology. Background technique [0002] In 4G (fourth generation mobile communication) or earlier mobile communication technologies, the base station antenna does not need to be tested for channel consistency calibration, and the radio frequency characteristics of the base station antenna are tested by using a cable connection method. [0003] The base station antenna of 5G (fifth generation mobile communication) introduces Massive MIMO (Massive Multiple Input Multiple Output, massive multiple input multiple output) technology. This base station antenna adopts an active phased array antenna system, AAU (Active Antenna Unit, active antenna module) is integrated with the array, and signal coverage is achieved through beamforming, and the number of antenna units is 64, 128, 256 o...

Claims

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Application Information

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IPC IPC(8): G01R29/10G06F30/20G06N3/00
CPCG01R29/105G06N3/006
Inventor 毛小莲张淼周建华段保权
Owner 上海莱天通信技术有限公司
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