An Antenna Layout Optimization Based on Particle Swarm Optimization Algorithm in the Full Frequency Band

Abstract

The invention discloses an antenna layout optimization on full band based on a particle swarm algorithm. The method comprises: step 1, establishing an optimization model in FEKO, to generate a *.pre file; step 2, setting PSO parameters; step 3, setting a primary iteration step length t=1, initializing particle position xi(t) and speed vi(t) randomly; step 4, writing the xi(t) in the *.pre file; step 5, starting PREFEKO and RUNFEKO modules, to generate a *.out file; step 6, using a under-design rate method to set an objective function; step 7, calculating an adaptive value fi(t) of a particle I; step 8, upgrading fbest and fbest<g>; step 9, upgrading speed vi(t) and positions xi(t) of all particles; step 10, determining whether all iteration is completed, if not, setting t=t+1, and returning to the fourths step; step 11, obtaining a vector pbest<g> of optimal positions of all antennas. The method solves problems that quantitative evaluation cannot be performed in a unified manner caused by different operating frequency bands of antennas in onboard multi-antenna layout optimization relative to FEKO.

Description

technical field [0001] The present invention relates to an antenna layout optimization method, more particularly, an antenna layout optimization method aimed at the isolation between antennas in a certain frequency band by using particle swarm algorithm. Background technique [0002] With the development of electronic information technology, the types and quantities of airborne electronic equipment have increased dramatically. In order to meet the needs of communication, navigation, and target recognition in the modern battlefield environment, more and more antennas are installed on aircraft, and its electromagnetic compatibility design has become an important topic in engineering design. The dense arrangement of antennas is accompanied by serious radio interference, and the main transmission path of electromagnetic interference between radio systems is the coupling between antennas. Isolation is often used to quantitatively characterize the strength of this coupling, which...

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Problems solved by technology

In the prior art, when conducting electromagnetic compatibility design for a multi-antenna system, it can only ensure that the isolation of a certain pair of antennas reaches the maximum, but cannot improve the isolation of the entire antenna system, so that all antennas in the system are electromagnetically compatible.

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