研究目的
Designing a dual-band dual-sense circularly polarized antenna for satellite application, focusing on achieving a low frequency ratio and two opposite circular polarizations.
研究成果
The designed dual-band circularly polarized antenna achieves good circularly polarized characteristic and wide beamwidth, suitable for both LHCP and RHCP states in satellite terminal applications.
研究不足
The study focuses on simulation results without physical prototype testing, which may not account for all real-world variables and constraints.
1：Experimental Design and Method Selection:
The antenna design utilizes stacked patches with reverse truncated corners for dual-band and dual-sense circular polarization. Proximity-coupling is introduced to feed the antenna, improving impedance matching.
2：Sample Selection and Data Sources:
The antenna is simulated using the Ansoft High Frequency Structure Simulator.
3：List of Experimental Equipment and Materials:
The antenna consists of three layers of Arlon AD450 substrate.
4：Experimental Procedures and Operational Workflow:
The design involves adjusting the size of two radiating patches based on operating bands and designing the ground plane for optimal gain and beamwidth.
5：Data Analysis Methods:
Simulated results include return loss, gain, axial ratio, and radiation patterns to evaluate performance.
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