Synthesis of volumetric ring antenna array for terrestrial coverage pattern.

Area of Science:

• Electromagnetics and Antenna Theory
• Satellite Communications Engineering

Background:

• Terrestrial coverage patterns are crucial for satellite communication systems.
• Designing efficient antenna arrays requires careful consideration of element spacing and excitation.
• Previous antenna designs often face challenges in hardware reduction and side lobe suppression.

Purpose of the Study:

• To synthesize a volumetric ring antenna array for optimal terrestrial coverage.
• To investigate the impact of ring spacing (X-Y plane) and positioning (X-Z plane) on antenna performance.
• To minimize antenna hardware and reduce side lobe levels for satellite applications.

Main Methods:

• Utilizing particle swarm optimization (PSO) for array synthesis.
• Concurrently optimizing ring spacing, ring positions, and excitation parameters.
• Comparing the synthesized array's performance against existing antenna designs.

Main Results:

• The synthesized volumetric ring antenna array demonstrates proper performance for accurate terrestrial coverage.
• The optimized geometry leads to a significant reduction in antenna hardware.
• A notable reduction in the side lobe level was achieved compared to previous designs.

Conclusions:

• The volumetric ring antenna array geometry is suitable for satellite applications requiring accurate terrestrial coverage.
• The particle swarm optimization approach effectively minimized hardware and side lobe levels.
• This design offers a promising solution for efficient and high-performance satellite antenna systems.