Vehicle-mounted rearview mirror LTE antenna

Abstract

The invention provides a vehicle-mounted rearview mirror LTE antenna which comprises an antenna body. The antenna body comprises a flexible medium substrate which is attached in a support frame of a rearview mirror and is provided with a first surface back to the support frame, antenna main ground which is arranged at the lower part of the first surface of the flexible medium substrate and is provided with an upper edge inclined at an angle to increase the pitch between the antenna main ground and a radiator, a feeder line which is accessed from the inclined high end of the antenna main ground, a feeding point which is arranged on the first surface of the flexible medium substrate, is located on the inclined high end of the antenna main ground or close to the inclined high end of the antenna main ground, and is connected with the feeder line, and the radiator which is arranged at the upper part of the first surface of the flexible medium substrate and is connected with the feeding point for signal radiation. The vehicle-mounted rearview mirror LTE antenna provided by the invention has the advantages of small size and simple structure, and can be well combined with the rearview mirror to exhibit great antenna performances.

Description

technical field [0001] The present invention relates to the field of vehicle antennas, in particular to a vehicle rearview mirror LTE (Long Term Evolution, long-term evolution technology) antenna. Background technique [0002] With the popularity of 4G technology, more and more vehicles are beginning to install LTE antennas. How to realize the all-round signal coverage of the whole vehicle is a common problem. [0003] At present, there are several common types of vehicle antennas: 1) The shark fin LTE antenna is installed on the roof and has a large metal ground, so it has good performance, but because the antenna is far away from the vehicle host, it needs more Long radio frequency lines, and the cost of radio frequency lines is very high. In addition, due to the size limitation of the shark fin itself, the isolation between antennas is also a problem; The loss and cost of the cable are very low, but the environment of the antenna itself is poor and the performance is po...

AI Technical Summary

Problems solved by technology

[0003] At present, there are several common types of vehicle antennas: 1) The shark fin LTE antenna is installed on the roof and has a large metal ground, so it has good performance, but because the antenna is far away from the vehicle host, it needs more Long radio frequency lines, and the cost of radio frequency lines is very high. In addition, due to the size limitation of the shark fin itself, the isolation between antennas is also a problem; The loss and cost of the cable are very low, but the environment of the antenna itself is poor and the performance is poor

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