Joint simulation optimization method of microwave sensor based on electromagnetic surface unit structure

Abstract

The invention discloses a joint simulation optimization method of a microwave sensor based on an electromagnetic surface unit structure. The joint simulation optimization method comprises the following steps: step 1, initializing parameters; step 2, forming different EBG structures; 3, calculating the fitness value of each individual sensor model; 4, updating an individual optimal value; 5, updating the optimal value of the population; 6, judging whether the number of iterations reaches the maximum number of iterations or not; if not, repeating the steps 2 to 5; if yes, outputting the optimized electromagnetic surface structure, and ending optimization; and 7, combining the obtained EBG structure with a microstrip antenna, and modeling again to obtain an optimized sensor structure. According to the method, the manual design process can be simplified, the microwave sensor structure with excellent performance can be quickly, reliably and automatically obtained, and the method has a very positive promotion effect on the industrialization process of the EBG structure in the field of microwave sensors.

Description

technical field [0001] The invention belongs to the technical field of microfluidic sensors, and in particular relates to a co-simulation optimization method of a microfluidic sensor based on an electromagnetic structure with higher sensitivity. Background technique [0002] Microwave sensors have been widely used in medical, bioengineering and other technical fields because of their high measurement accuracy, high robustness, low measurement cost, and manufacturing cost. The importance of sensing technology has become increasingly prominent. Among them, in the microfluidic system, the dielectric constant characterization of the liquid to be measured is still facing great challenges in terms of accuracy and precision. In recent years, research on microfluidic sensors has become a hot spot in both industry and academia. [0003] At present, the new artificial electromagnetic material—Electromagnetic Bandgap (EBG) structure has been paid great attention by scholars because i...

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Problems solved by technology

[0005] However, due to the non-differentiability and discontinuity of the design and research of electromagnetic problems, it often takes a lot of time and energy for researchers to study higher-performance electromagnetic devices.

Therefore, it is necessary to provide a more efficient optimization method for parameter design and structure optimization to solve the current problem of heavy and time-consuming optimization of electromagnetic problems and microwave sensor design. Wider application to problems in electromagnetism will be of great significance

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