Resonance frequency adjusting method and device of sea surface antenna and electronic equipment

Abstract

The invention discloses a resonant frequency adjusting method and device of a sea surface antenna and electronic equipment. The method comprises the following steps of: obtaining a seawater impedance value corresponding to a working sea surface environment of a to-be-adjusted antenna, and determining a shortened length determination relationship in the working sea surface environment based on the seawater impedance value; obtaining the diameter and the theoretical length of the to-be-adjusted antenna and a first impedance characteristic in a test sea surface environment the same as the working sea surface environment, and obtaining an oscillator shortened length according to the shortened length determination relationship; adjusting the length of the to-be-adjusted antenna based on the oscillator shortened length to obtain a second impedance characteristic of the adjusted antenna; and testing each electrical parameter of the adjusted antenna in the test sea surface environment, and judging whether each electrical parameter meets a preset standard or not. According to the resonance frequency adjusting method and device of the sea surface antenna and the electronic equipment of the invention, antenna inductive reactance is subjected to zeroing processing, the corresponding optimal shortened length of the antenna in different media is calculated, and the length of the original antenna is adjusted, so that the original working frequency of the antenna reaches a resonance state.

Description

technical field [0001] The present application relates to the technical field of antenna resonant frequency adjustment, in particular, to a method, device and electronic equipment for adjusting the resonant frequency of a sea surface antenna. Background technique [0002] The underwater vehicle can receive video data from the sea by releasing and controlling the drone. In order to realize the control of the UAV and high-speed information transmission, the underwater vehicle and the UAV can maintain two-way short-distance communication in the 430MHz~440MHz frequency band or the center frequency of 433MHz. At present, there are still two major problems to be solved to realize the two-way communication between the underwater vehicle and the UAV: ​​First, because the floating cable is far away from the underwater vehicle, the loss of the signal in the transmission line is relatively large, and the antenna can only Two-way communication with the UAV with a small power; second, t...

AI Technical Summary

Problems solved by technology

At present, there are still two major problems to be solved to realize the two-way communication between the underwater vehicle and the UAV: ​​First, because the floating cable is far away from the underwater vehicle, the loss of the signal in the transmission line is relatively large, and the antenna can only Two-way communication with the UAV with a small power; second, the half-wave vibrator antenna has obvious inductive reactance in the sea environment, resulting in mismatch loss of transmit power

[0003] For problem 1, optical fiber and signal amplifier can be used instead of traditional transmission lines to reduce signal loss and amplify it, but due to volume and power supply limitations, the degree of improvement is limited

At present, the research on the shortening effect of the antenna is in free space, and it is not applicable to the situation where the antenna is in a non-free space medium such as a complex environment on the sea surface, so it is impossible to strictly and accurately optimize the shortening of the antenna

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