A Miniaturized Low-Profile Ultra-Wideband Omnidirectional Vertical Polarization Antenna

Le résumé fourni par la source

In recent years, with the rapid development of wireless communication, communication devices are required to have wider bandwidth, smaller size, and omnidirectional radiation characteristics [1], [2]. Aircraft exhibit different flight postures during flight, and to meet the communication needs under various postures, vertically polarized omnidirectional antennas, which have uniform radiation characteristics in the horizontal direction, are widely used in unmanned aerial vehicle (UAV) communication systems. The low-profile design of antennas can reduce the antenna's profile height, enabling conformal integration with the aircraft body, thereby minimizing the impact on the aircraft's aerodynamic characteristics. Moreover, ultra-wideband (UWB) characteristics, which enable high-speed signal transmission, are widely applied in airborne antennas [3]–[6]. However, there is a close relationship between antenna size and operating frequency, and how to increase antenna bandwidth while reducing antenna size has always been a concern.

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