A Fast Evaluation Method for Electrical Performance of Frequency and Pattern Reconfigurable Microstrip Antenna Based...

Area of Science:

• Electromagnetics
• Antenna Theory
• Mechanical Engineering

Background:

• Increasing communication demands necessitate smaller, multifunctional antennas.
• Traditional antennas lead to increased platform size and electromagnetic interference.
• Reconfigurable antennas offer a solution by adapting frequency and beam direction.

Purpose of the Study:

• To develop and validate electromechanical coupling models for reconfigurable microstrip antennas.
• To overcome limitations of purely simulation-based design in reconfigurable antenna research.
• To enable accurate prediction of antenna performance based on structural changes.

Main Methods:

• Design of a reconfigurable antenna with dual resonant frequencies (8.66 GHz, 15.26 GHz) and steerable beams (36.2°, -36.5°).
• Establishment of resonance frequency and pattern function coupling models incorporating structural deformation.
• Experimental validation of the proposed electromechanical coupling models.

Main Results:

• The developed coupling models accurately predict antenna performance within engineering tolerances.
• Relative error between models and experimental results is less than 5%.
• Demonstrated the feasibility of electromechanical coupling theory for reconfigurable antenna design.

Conclusions:

• The proposed electromechanical coupling models provide a robust framework for designing reconfigurable antennas.
• This approach enhances the multifunctionality and electromagnetic compatibility of communication platforms.
• Experimental verification confirms the accuracy and practical applicability of the models.