Abstract
Abstract This paper introduces the concept of millimeter wave, analyzes the advantages and disadvantages and propagation characteristics of millimeter wave, and expounds the research status of millimeter wave ground communication and millimeter wave satellite communication. The military application of millimeter wave communication technology in electronic countermeasures is taken as an example. Finally, the outlook for millimeter wave communication technology will open up new application fields in the future and have broad development prospects.
Highlights
With the rapid development of mobile communications, satellite communications, and onboard electronics, there is an increasing shortage of spectrum resources
Since the millimeter wave is made up of microwaves and light waves, it has some advantages of microwave and light waves
Millimeter waves use the atmospheric window, the attenuation is small, by natural light and The influence of the heat radiation source is small
Summary
With the rapid development of mobile communications, satellite communications, and onboard electronics, there is an increasing shortage of spectrum resources. Due to the extremely rich spectrum resources in the high-frequency microwave band, modern communication systems are developing towards high-frequency microwaves, especially in the millimeter-wave band. The millimeter wave has a small wavelength, allowing a large number of antennas to be installed without increasing the volume of the existing communication device, and the resulting large-scale antenna array can provide high beamforming gain, thereby obtaining sufficient link balance. Bell Labs USA has achieved significant capacity improvement and related efficiency improvements by using large-scale MIMO technology (multi-input and multi-output technology) in the millimeter wave band. With prototypes with peak transmission rates in excess of 50 Gbps, Bell Labs has successfully achieved spectral efficiencies of up to 100 bps / Hz in the 28 GHz millimeter-wave band, and its transfer rate allows users to download faster using the network, enabling only A few hundred megabytes of data transfer is reached in a few seconds. The realization of millimeter wave communication technology has provided a new development direction for future research on the realization of touchable Internet, low latency virtual reality and future applications such as 3D
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