| （英） |
In recent years, there has been significant research into 5G and related technologies to achieve high-speed, high-capacity, low-latency communication for multiple terminals. 5G is increasingly considered for applications in IoT and V2X, including connected cars, where everything is interconnected. For these systems, circularly polarized antennas are preferred due to their improved communication characteristics. However, developing an antenna that is unidirectional, thin, low-profile, and capable of radiating broadband circularly polarized waves presents a challenge. Although thin, broadband circularly polarized antennas utilizing metamaterials have been reported, none have achieved a thickness of 4 mm or less. In this study, we investigate a compact and thin circularly polarized antenna with rectangular ring structures designed to operate over a wide frequency band, including the 5 GHz wireless LAN, using electromagnetic field analysis. |