Sub-array division and voltage distribution method and device for sum-difference beam antenna
A technology of voltage distribution and sub-array division, which is applied in the directions of manufacturing antenna array devices, antenna arrays, antennas, etc., can solve the problems of increased loss, increased design, processing and installation complexity, and a wide variety of sub-array divisions, reducing the The number of production molds, the effect of reducing complexity
Active Publication Date: 2022-03-29
南京天朗防务科技有限公司
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Problems solved by technology
[0004] In the antenna design scheme of the prior art, when the sum difference beam and the low sidelobe pattern are realized by dividing sub-arrays, the mirror image symmetry of the left and right half arrays is required. Under this premise, the low sidelobe design has the following problems: , using Taylor weighting or Chebyshev weighting, the amplitude distribution of the factor arrays is different, resulting in a wide variety of sub-array divisions, greatly increasing the complexity of design, processing, and installation. increase loss
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[0022] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0023] refer to figure 1 , which is a schematic flowchart of the sub-array division and voltage distribution of the sum-difference beam antenna provided by the present invention.
[0024] Step 1: Determine the total number of sub-arrays and antenna units of the antenna, and calculate the number of antenna units in each type of sub-array.
[0025] In the specific implementation, it is first necessary to optimize the number of sub-array types. In the second step, it is necessary to obtain the total number of sub-arrays and the total number of antenna units required by the antenna. Due to the particularity of the sum-difference beam antenna, the left and right half-array images of the antenna array are required Symmetrical, so depending on the total number of sub-arrays and the total number of antenna elements, the number of types of sub-arrays ...
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The invention discloses a sub-array division and voltage distribution method and device for a sum-difference beam antenna. The method includes: determining the total number of sub-arrays and the total number of antenna units of the antenna, and calculating the number of antenna units in each type of sub-array; according to each The quantitative relationship between the number of antenna units in the sub-array, adjust the number of sub-arrays in the antenna; divide the antenna unit sub-arrays of the antenna half-array; extract the side lobe of the antenna pattern, and the sub-array of the antenna half-array Perform voltage distribution adjustment. By adopting the above technical solution, on the basis of reducing the number of types of sub-arrays, the complexity of the antenna structure can be reduced, and at the same time, the number of sub-array production molds can be reduced, which facilitates the production of sub-arrays in which antenna units and power dividers are integrated.
Description
technical field [0001] The invention relates to the technical field of antenna design, in particular to a subarray division and voltage distribution method and device for a sum-difference beam antenna. Background technique [0002] The scheme of forming the sum and difference beam by the antenna is to divide the antenna array into left and right half arrays, set up two receiving channels, the two receiving channels are equal-amplitude and in-phase synthesis to obtain the sum beam, and equal-amplitude reverse synthesis to obtain the difference beam. Based on the sum and difference beam formed by the antenna, the angle measurement accuracy can reach less than one tenth of the beam width. The method for the antenna to achieve low sidelobe is to carry out amplitude weighting on the antenna unit, such as Taylor weighting, Chebyshev weighting, etc., so that the maximum sidelobe of the pattern is below -30dB. The low sidelobe design of the antenna can effectively reduce the impact...
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IPC IPC(8): H01Q21/00
CPCH01Q21/0087
Inventor 严文涛余剑锋朱自力孙振龙
Owner 南京天朗防务科技有限公司