A Method for Measuring and Calculating the Accuracy of Single Panel of Plane Antenna
A panel and antenna technology, which is applied in the field of measurement and calculation of the accuracy of a single panel of a surface antenna, can solve the problems of increasing the weight of the antenna reflector, the weight of the mount and the moment of inertia of the antenna, deteriorating the dynamic performance of the antenna, and increasing the manufacturing cost.
Active Publication Date: 2020-10-16
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology
[0003] With the development needs of satellite communications, radio astronomy and deep space exploration, planar antennas are developing towards high-frequency bands and large apertures. In order to achieve high precision of a single panel, the size of the panel design should not be too large, but small-sized panels will increase The weight of the antenna reflector, the weight of the pedestal and the moment of inertia of the antenna will deteriorate the dynamic performance of the antenna and increase the manufacturing cost. It can be seen that the design of large-scale high-precision panels is an urgent need to realize the technology in the existing technology
In particular, the measurement of panel accuracy is an important part of high-precision panel design, but there is still a lack of related technologies for panel accuracy measurement in the prior art
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[0060] Such as figure 1 and 2 As shown, a method for measuring and calculating the accuracy of a single panel of a planar antenna includes the following steps:
[0061] (1) Establish panel local coordinate system x′o′y′z′
[0062] refer to figure 1 , select 3 points P on the panel 1 ,P 2 ,P 3 , where P 1 The point is the origin o' of the local coordinate system x'o'y'z', P 1 ,P 2 The straight line determined by the point is the x′ axis of the local coordinate system, P 1 ,P 2 ,P 3 The plane determined by the three points is the x'o'y' plane of the local coordinate system x'o'y'z', through P 1 The point perpendicular to the x'o'y' plane is the z' axis. After determining the x' axis and z' axis, the y' axis can be determined by the right-hand rule.
[0063] (2) Establish the measurement coordinate system x 1 o 1 the y 1 z 1 Transformation relationship with panel local coordinate system x′o′y′z′
[0064] refer to figure 1 , the measurement coordinate system is x...
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The invention discloses a method for measuring and calculating the accuracy of a single panel of a planar antenna, which belongs to the technical field of antennas. The method includes the steps of establishing a panel local coordinate system, establishing a transformation relationship between the measurement coordinate system and the panel local coordinate system, establishing a transformation relationship between the panel local coordinate system and a theoretical design coordinate system, and calculating the panel precision. The method proposed by the invention can be used to calculate the panel accuracy of measurement or simulation, provide important guidance for theoretical design work, and is an important improvement to the prior art.
Description
technical field [0001] The invention relates to the technical field of antennas, in particular to a method for measuring and calculating the accuracy of a single panel of a planar antenna. Background technique [0002] The surface shape accuracy of the reflector antenna is an important factor affecting the performance of the antenna. Especially for large-aperture, high-frequency antennas, achieving high precision of the main reflector surface has become one of the key technologies for its successful development. The accuracy of a single panel has a crucial impact on the shape of the main reflector. Whether a high-precision panel can be developed is one of the technical bottlenecks in the development of antennas. [0003] With the development needs of satellite communication, radio astronomy and deep space exploration, planar antennas are developing in the direction of high frequency band and large aperture. The weight of the antenna reflector, the weight of the pedestal and...
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IPC IPC(8): G06F30/20G06F17/16
CPCG06F17/16G06F30/20
Inventor 闫丰银秋华曹国光刘国玺
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP