A Smart Antenna System

Abstract

The invention discloses an intelligent antenna system, which includes an information collection and processing unit, an antenna array and a radome. The information collection and processing unit and the antenna array are located inside the radome and installed on the radome respectively. The antenna array includes 8 antennas with the same structure , 8 antennas are connected end to end along a circle to form an octagonal inner circle. The information collection and processing unit includes SP8T radio frequency switch, low noise amplifier, power amplifier, terminal radio frequency baseband module, WIFI module, GPS positioning module and electronic compass module , the GPS positioning module and the electronic compass module locate the mobile terminal equipment to determine the angle between the mobile terminal equipment and the target base station, and then determine the working status of the SP8T RF switch, so that the electromagnetic waves emitted in the antenna array radiate to the target base station. One of the antennas is connected to the working state; the advantages are high reliability, low design difficulty and design cost, high gain, and high phase switching accuracy.

Description

technical field [0001] The invention relates to an antenna system, in particular to an intelligent antenna system. Background technique [0002] In special application scenarios such as high-speed rail, vehicles, and ships, it is necessary to equip mobile terminal equipment to establish a connection with the target base station to enable mobile terminal users to communicate with external mobile terminal users. As one of the core components of mobile terminal equipment, the antenna needs to emit electromagnetic waves that can always radiate to the target base station in order to ensure that mobile terminal users can keep in touch with external mobile terminal users. However, the position and state of the mobile terminal user are not constant, and the position and state of the mobile terminal device will also change with the mobile terminal user, and the relative position of the mobile terminal device and the target base station will also change accordingly. If it can be ensu...

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Problems solved by technology

Although the design difficulty and design cost of the antenna system in motion is relatively low, and the antenna gain is relatively high, but because the servo drive system requires structural components such as servo motors (stepping motors), synchronous wheels, and synchronous belts, it will fail due to wear and tear during long-term operation. Many, poor reliability, the servo motor controls the radiation direction of the parabolic antenna or flat panel array antenna, due to the inevitable error between the software and hardware, the radiation direction of the antenna cannot be accurately aligned with the target base station, and the phase switching accuracy is not high

The LTE smart antenna system works by controlling the radiation direction of the antenna through the beamforming of the feeding network. Although its reliability and phase switching accuracy are high, the beamforming will cause the loss of antenna gain and affect the performance of the antenna. The feed network for beamforming is relatively complex, and the design difficulty and cost are high

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