Antenna isolation full-wave calculation method based on surface element edge ports
A technology of antenna isolation and calculation methods, applied in design optimization/simulation, special data processing applications, etc., can solve problems such as port response singularity, and achieve the effect of improving calculation accuracy
Active Publication Date: 2022-01-28
BEIHANG UNIV
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[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a full-wave calculation method for antenna isolation based on bin side ports, which overcomes the problem of singular port response caused by discontinuous structures at both ends of the antenna feed port, and the calculation accuracy In particular, the accuracy of the calculation results of the port response has been effectively improved
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[0043] The technical scheme of the present invention is described in further detail below in conjunction with accompanying drawing, but protection scope of the present invention is not limited to the following description.
[0044] like figure 1 As shown, the full-wave calculation method of antenna isolation based on the facet edge port includes the following steps:
[0045]S1. Load the initialized CAD grid model:
[0046] Call the initialized CAD model to load, and extract the transmitting antenna model of the CAD grid model from the nastran format grid model file (such as figure 2 The coaxial feed ultrashort wave dipole antenna shown) and the receiving antenna model (such as image 3 shown), and specify the side feed source of the receiving / transmitting antenna ( figure 2 and image 3 shown by the thick line); at the same time, import the electric large-scale target mesh model from the nastran format mesh model file;
[0047] In the embodiment of this application, the...
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The invention discloses an antenna isolation full-wave calculation method based on surface element edge ports. The antenna isolation full-wave calculation method comprises the following steps of: S1, loading an initialized CAD mesh model; S2, installing a transmitting antenna model and a receiving antenna model on a target grid model; S3, reading point coordinates and point connections of all grids from the transmitting antenna, the receiving antenna, a feed source grid and the target grid model into a memory, and extracting a primary function list, obtaining a primary function sequence number list in which center point coordinates are overlapped with receiving antenna feed point coordinates and transmitting antenna feed point coordinates; S4, calculating the port current of the transmitting antenna and the port current of the receiving antenna; and S5, calculating the isolation between the transmitting antenna and the receiving antenna. According to the method of the invention, the problem of singular port response caused by discontinuous structures at the two ends of an antenna feed port is overcome, and the calculation precision, especially the calculation result precision of the port response, is effectively improved.
Description
technical field [0001] The present invention relates to the calculation of antenna isolation, in particular to a full-wave calculation method of antenna isolation based on facet side ports. Background technique [0002] With the rapid development of electronic technology and communication technology, dozens or even hundreds of electronic systems are integrated on the same platform. At the same time, an electronic system may require several or even dozens of antennas working in different bands to receive or transmit Electronic signals, for example, a variety of electronic devices and their antennas for different functions will be integrated on an aircraft or a warship. The near-far field coupling of different antennas in the same system is very strong, and it may even seriously interfere with the normal operation of each transceiver station, causing the performance of the electronic system to degrade. Therefore, how to predict and avoid this interference is very important for...
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IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 李尧尧蔡少雄曹成
Owner BEIHANG UNIV