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Quasi-plane wave generator and generating method based on array antenna

An array antenna and wave generator technology, applied in directions such as antennas, antenna arrays, antenna radiation patterns, etc., can solve the problems of high cost of tight field and high test distance requirements, reduce the space required for testing, improve testing efficiency, and facilitate the The effect of production and processing

Active Publication Date: 2018-10-09
BEIHANG UNIV
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Problems solved by technology

[0007] The invention solves the problem by solving the problem that the existing compact field is expensive and the real far field requires a high test distance, and provides a quasi-plane wave generator and a generation method based on an array antenna, which has low production cost and difficulty, and is easy to install. Simple, adjustable frequency, and the advantages of covering a single frequency band or multiple frequency bands

Method used

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  • Quasi-plane wave generator and generating method based on array antenna
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  • Quasi-plane wave generator and generating method based on array antenna

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] Such as figure 1 , 2 As shown, the composition of the present invention and a schematic diagram of generating a high-quality quasi-plane wave quiet zone. The composition of the present invention includes: a two-dimensional array antenna port 1 , an array antenna unit 2 and an array antenna feeding network 3 . The present invention can generate such as figure 2 As shown, the area that generates the cylindrical high-quality quasi-plane wave quiet zone 4 is located near the size of 1.5 times the diameter of the two-dimensional antenna array aperture 1, wherein the cylindrical central section is parallel to the aperture of the two-dimensional array antenna.

[0046] The array antenna unit selected in the present invention is a dual-polarization antenna with relatively low cross-polarization. Coupled feed and symmetrical structure are ad...

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Abstract

The invention relates to a quasi-plane wave generator and a quasi-plane wave generating method based on an array antenna. The quasi-plane wave generator comprises a two-dimensional array antenna aperture with electrical sizes of length and width exceeding 10 lowest operating frequency wavelengths, an array antenna unit and an array antenna feeding network. The quasi-plane wave generator utilizes aHuygens principle to form a high-quality quasi-plane wave static zone in the vicinity 1.5 times of the aperture size away from the two-dimensional array antenna aperture through performing control over array antenna unit position, excitation amplitude and phases. The quasi-plane wave generator and the generating method based on the array antenna have wide application range, can be applied to directional diagram measurement of an electrical-large antenna and RF index measurement of a system having the electrical-large antenna, and are particularly suitable for base station antenna measurementof 5G mobile communication and measurement of terminal antennas and systems in millimeter wave bands.

Description

technical field [0001] The present invention relates to the field of electromagnetic field and microwave technology, the field of array antenna technology, the field of antenna and system measurement technology, especially to the field of 5G mobile communication base station antenna measurement and millimeter wave band terminal antenna and system measurement. The specific content is an array antenna-based A quasi-plane wave generator and its generation method. Background technique [0002] At present, the research on 5G mobile communication technology and the production of related prototypes have set off a wave of innovation in the mobile communication industry around the world. As one of the key technologies of 5G mobile communication technology, large-scale active antenna array technology has received extensive attention from the industry. The 5G Massive MIMO antenna OTA measurement method is currently a research hotspot in the field of communication antennas. Many equipm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q21/06G01R29/10
CPCG01R29/10H01Q1/36H01Q1/48H01Q21/061
Inventor 苗俊刚孙雪蕾张雨生乔兆龙胡岸勇
Owner BEIHANG UNIV
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