Abstract:In this paper, an all metal focusing transmitarray antenna using a II-shaped slot element is proposed. The transmitarray is formed by stacking four identical metal phase shift layers and three identical square waveguide layers on each other. To meet the requirements of high-temperature plasma transmission diagnosis, a 2024 aluminum alloy material is used. The simulated results indicate that, unlike the feed antenna, the proposed antenna can concentrate most of the electric field energy into a small area. To ve… Show more
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