Dual polarization slot antenna based on SIW technology

Abstract

The invention discloses a dual polarization slot antenna based on the SIW technology. The advantages of the SIW technology, the advantages of a dual polarization antenna and the advantages of a slot antenna are combined in the dual polarization slot antenna. A homocentric square slot is additionally formed in a copper coated layer on the top of a dielectric layer based on the SIW technology, the frequency is adjusted by adjusting the width of the homocentric square slot so that the frequency of the dual polarization slot antenna can meet the requirement; the dual polarization antenna is adopted, and a positive 45-degree antenna and a negative 45-degree antenna with the polarization directions being orthometric are combined and work under a receiving and transmitting duplex mode at the same time; coupled feeding is adopted, and signals are sent to the upper portion of the antenna through the slot in the copper coated layer at the bottom of the dielectric layer. According to the dual polarization slot antenna, the advantages of the SIW technology, the advantages of the dual polarization antenna and the advantages of the slot antenna are combined, the planarity and miniaturization of the dual polarization slot antenna are achieved based on the SIW technology, and the antenna and a circuit can be integrated.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a dual-polarization slot antenna based on SIW technology. Background technique [0002] The antenna is one of the key devices in the mobile communication network, and it is the entrance and exit of wireless signals. If the main device is compared to the brain of the mobile communication system, then the antenna can be compared to the mouth, eyes or ears. The quality of the antenna directly determines the coverage effect of the mobile communication network and the quality of user perception. Therefore, the antenna plays a vital role in the quality of mobile communication. If the quality of the antenna is not good, even if the quality of the master device is good, the network performance cannot be reflected. [0003] Due to the long-term product price orientation, the proportion of investment in antennas in the field of mobile communications is getting lower and lowe...

AI Technical Summary

Problems solved by technology

Excessively price-oriented factors have led antenna manufacturers to pay less attention to antenna materials, processes, overall reliability and stability in order to make profits and survive, and the resulting disadvantages have gradually emerged

[0004] In practical applications, it is found that a considerable proportion of antennas have good performance in the initial stage of use and can better meet the network coverage requirements. However, after a period of network application, the reliability of the antennas decreases and the performance no longer meets the requirements of network coverage.

This is precisely due to the reduction in the cost of the antenna, which leads to the decline in the quality of the antenna, which cannot be used in the external environment for a long time

The quality of the antenna causes the failure rate of mobile communication network sites to gradually increase, and the losses caused by closed-site maintenance or equipment replacement even exceed the investment savings brought about by the reduction in antenna costs

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