Bae HongGuk, Lee JaeGon, Park SangWook
Department of ICT Convergence, Soonchunhyang University, Asan 31538, Republic of Korea.
Department of Electronic SW Engineering, Kyungnam University, Changwon 51767, Republic of Korea.
Sensors (Basel). 2024 Oct 18;24(20):6695. doi: 10.3390/s24206695.
As metasurfaces are in the spotlight, research is being conducted to incorporate them into transmitarray (TA) antennas. Among these, as an attempt to create a low-profile design, a patch antenna classified as low-gain can be utilized as an appropriate source antenna. However, for high efficiency of the TA, the gain of the source antenna must be fundamentally improved. For this, a simple side metal structure was applied to a metallic cross-type slot transmitarray. This acts as a resonant element and reflector by utilizing the electromagnetic wave radiated from the source antenna. The changes in the center frequency and gain due to the application of the side metal structure to the source antenna were analyzed. The gain of the source antenna was improved by a total of 4.63 dB. This is expected to be applied to create various source waves and to conduct future research on improving the gain in transmitarray antennas.
由于超表面备受关注，目前正在开展将其纳入透射阵列（TA）天线的研究。其中，作为实现低剖面设计的一种尝试，可将归类为低增益的贴片天线用作合适的源天线。然而，为了使TA具有高效率，必须从根本上提高源天线的增益。为此，在金属十字形缝隙透射阵列上应用了一种简单的侧边金属结构。该结构通过利用源天线辐射的电磁波，起到谐振元件和反射器的作用。分析了在源天线上应用侧边金属结构后中心频率和增益的变化。源天线的增益总共提高了4.63 dB。预计这将应用于产生各种源波，并用于未来关于提高透射阵列天线增益的研究。
