Low-profile radiation unit capable of improving gain and front-to-back ratio

Abstract

The invention discloses a low-profile radiation unit capable of improving gain and front-to-back ratio, and the radiation unit comprises four dipoles, a coupling PCB grounding plate, radiation arms and dipole baluns; every two of the four dipoles are combined to be circumferentially distributed at the top of the coupling PCB grounding plate and fixedly connected with the top of the coupling PCB grounding plate; each dipole is provided with a dipole balun, and a radiation arm is arranged between every two adjacent groups of dipole balun. According to the low-profile radiation unit capable of improving the gain and the front-to-back ratio, the dipole balun is designed to be bent downwards, the requirement for the electrical length of the radiation unit is met, meanwhile, the height of the radiation unit is reduced, the area of the joint of the dipole balun and the radiation arm is increased, and the requirement for electrical coupling of the dipole balun and the radiation arm is met; the joint is subjected to slit slotting design, so that the radiation height of the radiation unit to the ground is improved, and the performance requirement of the radiation unit is met.

Description

technical field [0001] The invention relates to the technical field of communication equipment, in particular to a low-profile radiation unit capable of improving gain and front-to-back ratio. Background technique [0002] With the development of communication technology, the communication system has higher and higher requirements for antennas, and the quality of the radiation unit determines the overall performance of the antenna; at the same time, in order to meet the needs of multiple operators to build a shared base station tower, the operator has strict requirements on the size and weight of the antenna. New requirements are put forward, so designing a radiation unit with small size and high performance will have very important practical significance. [0003] According to the microwave principle, the radiation unit of the antenna is in the frequency bands of LTE700, CDMA800 and GSM900, and the size of the radiation unit is relatively large, which leads to a large overa...

AI Technical Summary

Problems solved by technology

[0003] According to the microwave principle, the radiation unit of the antenna is in the frequency bands of LTE700, CDMA800 and GSM900, and the size of the radiation unit is relatively large, which leads to a large overall size of the antenna under the performance requirements of the communication system; Multiple systems work at the same time. When the front-to-back ratio of the existing antenna is not very high, the multiple systems will interfere with each other, resulting in poor communication signals. In this case, it is increasingly important to improve the front-to-back ratio of the antenna.

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