A millimeter-wave dielectric resonator antenna array for Internet of Vehicles communication

Abstract

The invention relates to a millimeter-wave dielectric resonator antenna array used for vehicle network communication, and belongs to the technical field of communication. The millimeter-wave dielectric resonator antenna array includes from bottom to top: microstrip line, dielectric substrate, ground, dielectric resonator antenna unit, and refraction plate; the millimeter-wave dielectric resonator antenna array is established using a cubic dielectric resonator, composed of The dielectric resonator antenna unit is composed of M rows and N columns; the refraction sheet is covered above the radiation antenna; the microstrip line is a microstrip power divider divided into four. The array feeding method of the invention is relatively simple, easy to realize and low in processing cost. The arrays are closely spaced and can be miniaturized well. Standing wave series feeding is adopted, and the pattern has high directional characteristics. It is suitable for the interconnection with the radio frequency system of the Internet of Vehicles.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a millimeter-wave dielectric resonator antenna array for vehicle network communication. Background technique [0002] 1. Development status of this technical field [0003] With the rapid development of intelligent networked vehicles, the communication applications of vehicles are becoming more and more frequent. In recent years, the rapid development of wireless communication, as well as the development of the automotive industry and automotive electronics, has promoted the research of vehicle antennas. Since the antenna system was introduced into the automotive electronics industry, vehicle antennas have become a hot research topic. Since the vehicle antenna is affected by the vehicle body space, medium, location and other environments, the development direction of the vehicle antenna mainly has the following aspects: miniaturization, low cost; diversified integration and...

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Problems solved by technology

[0010] The existing feeder width progressive technology is too thin, the transmission line loss is large, and the radiation efficiency of the antenna is not high; the chip width progressive technology needs to manually change the phase of the line array, and the power divider network used has a large transmission loss and occupies a large space , which is not conducive to miniaturization and has a negative impact on antenna gain; the parallel technology of unequal power splitters adopts a stacked design of multi-layer dielectric substrates, the processing is complicated, and there are large errors in the assembly process, which is not suitable for large-scale production engineering applications; The feeder slotting technology will reduce the gain of the antenna; in order to ensure that the array elements are in phase, the non-uniform series feeder technology introduces more bent feeder lines and increases the overall area, which is not conducive to miniaturization, and will also cause excessive insertion loss and lower antenna radiation efficiency. Reduced, and not conducive to practical processing

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