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oe1(光电查) - 科学论文

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  • Design and Simulation of a Slot Waveguide Array Antenna (SWAA) for Satellite Communications

    摘要： One of the most used antennas today, is that of slots in waveguides. These antennas are an important type within the microwave range with various applications in electronic communications systems, radar, and satellite applications, due to its high power capacity, high efficiency, low weight, compact structure and few lateral lobes, all added together to its proven resistance to radiation, high temperatures and vibration, characteristics without which they can not be used in aerospace applications. The following lines show the design and simulation of a Slot Waveguide Array Antenna (SWAA) for satellite communications in the 30 GHz band. The antenna will be approximately 170x170 mm, constituted by 24x24 slots. It will be fed by waveguides in a lower layer connected to the radiating guides through slots. The modeling and design of the different elements that make up the power grid as T- junctions and elbows in the E and H planes were carried out.

    关键词： 30 GHz band,SWAA,waveguide slots,Slot Waveguide Array Antenna,satellite communications

    更新于2025-09-23 15:21:01

  • Meta-waveguide analysis and implementation for using as a slot array antenna

    摘要： This paper presents a novel concept named meta-waveguide structures to design slot array antennas based on metasurface. The proposed method investigates the geometrical parameters of the embedded metasurface and their relations to build up the engineered electric and magnetic fields to introduce efficient slot array antennas. This approach eliminates the necessity of using the well-known offsets in typical slot arrays, which can be benefited from linear array theorem. This idea is realized by employing successive filed curvature along the propagation direction, utilizing periodic metasurfaces. Thereafter, a step-by-step algorithm is recommended to design an efficient slot array antenna. Finally, a prototype is fabricated and tested experimentally validating the theoretical calculations.

    关键词： Metasurface,slot array antenna,slot waveguide array,meta-waveguide

    更新于2025-09-11 14:15:04