研究目的
To design and simulate a Slot Waveguide Array Antenna (SWAA) for satellite communications, which will operate in the 29.5-31 GHz band.
研究成果
The design and simulation of a SWAA for satellite communications confirmed that waveguide slot antennas are suitable for aerospace applications due to their high power capacity, efficiency, and resistance to harsh conditions. However, the design did not fully meet all specifications, highlighting the need for more precise modeling and consideration of mutual coupling effects in future work.
研究不足
The design did not fully comply with the desired NLPS of 20 dB and the bandwidth specifications, possibly due to the effects of mutual coupling between slots not being contemplated and the subarrays being too long (12x6 slots).
1：Experimental Design and Method Selection:
The design and simulation of a SWAA for satellite communications in the 30 GHz band was carried out using CST Microwave Studio software. The antenna was designed to be approximately 170x170 mm, constituted by 24x24 slots, fed by waveguides in a lower layer connected to the radiating guides through slots.
2：Sample Selection and Data Sources:
The design was based on specifications for satellite communications, including a gain greater than 30 dBi, a beam width of 3 degrees in both planes, a fractional bandwidth of 5%, and an ROE less than
3：
4：List of Experimental Equipment and Materials:
CST Microwave Studio software was used for modeling and simulation.
5：Experimental Procedures and Operational Workflow:
The design included the modeling of T-junctions and elbows in the E and H planes, and the simulation of the antenna's performance parameters.
6：Data Analysis Methods:
The simulation results were analyzed to evaluate the antenna's compliance with the specified performance criteria.
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