Design method of anti-interference scatter communication system antenna array

Abstract

The invention provides a design method of an anti-interference scattering communication system antenna array, which is a communication system scattering field antenna array design method capable of enhancing scattering signal intensity and realizing scattering field beamforming, and the design can be used for a scattering communication system to improve communication performance such as communication radius expansion and interference resistance. The method is characterized in that a design method capable of realizing beamforming in any direction in a three-dimensional space is provided based on geometrical characteristics of the three-dimensional space and characteristics of an antenna array; MATLAB and HFSS are adopted to carry out joint design simulation; the HFSS establishes a scatter communication system antenna array model, the array element antenna spacing of the scatter communication system antenna array model is set to be a variable quantity, and MATLAB calculates the optimal array element antenna spacing by adopting a differential evolution algorithm and the HFSS in a combined manner. According to the method, the differential evolution algorithm and the HFSS are adopted onthe MATLAB for joint calculation, so that the antenna scattering direction in the scattering communication system antenna array can be centralized.

Description

technical field [0001] The invention belongs to the field of scattering communication, in particular to an antenna array of a scattering communication system. Background technique [0002] The Internet of Things (IOT) refers to the real-time collection of any information that needs monitoring, connection, and interaction through various devices and technologies such as information sensors, radio frequency identification technology, global positioning system, infrared sensors, and laser scanners. Objects or processes, collect various required information such as sound, light, heat, electricity, mechanics, chemistry, biology, location, etc., and realize the ubiquitous connection between things and things, things and people through various possible network access , to achieve intelligent perception, identification and management of items and processes. The Internet of Things is an information carrier based on the Internet, traditional telecommunication networks, etc. It allows...

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Problems solved by technology

[0004] Existing passive backscatter systems, such as passive RFID systems, Wi-Fi backscatter systems, TV backscatter systems and FM backscatter systems, and LoRa backscatter systems, these passive backscatter systems are It solves the key problem of energy consumption very well, but they all have great limitations in communication distance, and there are still great difficulties in practical application deployment, and the existing passive backscattering system is omnidirectional scattering , it will interfere with all other communications in the pass frequency band during scattered communication

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