A controllable antenna system and antenna control method

Abstract

The invention is applicable to the technical field of communication, and provides a controllable antenna system, including a phase shifter unit, an amplitude modulator unit and an input module which are respectively connected to a processor, wherein the phase shifter unit is connected to a first antenna unit and a second antenna unit respectively, the amplitude modulator unit is connected to the first antenna unit and the second antenna unit respectively, and the first antenna unit and the second antenna unit are different in frequency band. According to the controllable antenna system, the frequency, the beam width angle and the beam direction angle of the antenna can be controlled; and therefore, the antenna can be selected to work at the frequency band of 2.4GHz or 5.8GHz. The direction scanning accuracy of the antenna can reach + / -4 degrees, the direction scanning step length of the antenna can reach + / -7 degrees, the horizontal plane half-power beam width angle is not more than 25 degrees, the power control range and accuracy can reach 0-30dB + / -1dB , the beam switching time is not more than 1ms, the system can be set by a human-machine interaction mode as well as a program control mode, and different work modes are selected according to actual requirements for meeting different requirements.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an adjustable antenna system and an antenna adjustment method. Background technique [0002] An antenna is a transformer that converts a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space), or vice versa. In radio equipment, an antenna is a component used to transmit or receive electromagnetic waves. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, and radio astronomy, which use electromagnetic waves to transmit information, rely on antennas to work. In addition, in terms of transmitting energy with electromagnetic waves, non-signal energy radiation also requires antennas. Generally, antennas are reversible, that is, the same antenna can be used as both a transmitting antenna and a receiving an...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a controllable antenna system and antenna control method, aiming to solve the problem that the existing antenna is mainly a single-band, directional antenna with a fixed beam width angle, and the beam direction angle needs to be rotated manually or mechanically. The turntable realizes the control of the beam direction

Furthermore, the existing frequency direction antennas still have problems such as insufficient accuracy of the antenna beam direction angle and the antenna beam width angle.

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