The "shark fin" antenna design has actually been around for a long time。Because it is inconspicuous，Not taken seriously in daily driving and car use，Therefore, the “shark fin” antenna is not recognized by consumers。In fact, the "shark fin" antenna is very useful，Next let’s talk about the functions of the “shark fin” antenna？

1. Enhance car communication signal

Because automobiles have particularly high requirements for sealing，So the communication signal in the car is not very strong，This will make the car inconvenient while driving。In order to improve the communication signal of the car，The car is designed with an antenna。These antennas are columnar、spiral。The design of these seabet loginantennas is poor，The emergence of "shark fin" antennas solves this problem。So is the role of the "shark fin" antenna just that?？

The biggest advantage of the "shark fin" antenna compared to ordinary antennas is to enhance communication signals。The signal receiving device of the "shark fin" antenna is built-in，So its anti-interference ability is very strong，The interference to radio waves is also relatively small。So while improving the communication signal，Also enhances the stability of communication signals。

2. The rear "shark fin" antenna acts as a spoiler

The car is traveling very fast，Therefore, aerodynamics has very high requirements in automobile exterior design。The design and development team of a vehicle will analyze every detail of the vehicle’s appearance，Choose the best solution to reduce the air resistance coefficient。The design of the "shark fin" antenna was inspired by an Australian aircraft maintenance technician's whim while repairing aircraft spoilers，Later applied for patent，After being bought by BMW, the design was transplanted to the car and is still in use today，This is why BMW cars basically have “shark fin” antennas。

Why did BMW spend a lot of money to buy this patent，The reason is that the "shark fin" antenna is used when the car is driving at high speed，Can cut the air vortex on the roof very well。Especially at speeds above 100km/h，"Shark fin" antenna will be of great help in reducing the fuel consumption of cars。Wind tunnel experts have done experiments，“Shark fin” antenna will reduce high-speed fuel consumption by 3% when the car is driving at high speed，This data is still very gratifying。

3. Release of static electricity on car surfaces in autumn and winter

Entering autumn seabet ioand winter，Especially in the northern region，Static electricity is often generated when cars open the door。The "shark fin" antenna can solve this problem very well，The "shark fin" antenna has a built-in ground wire，Can quickly transfer static electricity generated on the surface of the car body。In this way, there will be no static electricity generated when opening the door, which will speed up the heartbeat。

The "shark fin" antenna mentioned here can save lives at critical times when driving in the wild，When encountering difficulties it is difficult to escape，The signal in the wild is not good，At this time, the strong communication signal of the "shark fin" antenna will play a "life-saving" role。Due to the "shark fin" antenna's signal being amplified and enhanced，Vehicle GPS signals can allow rescuers to better locate vehicles in distress。At the same time due to the application of "shark fin" antenna，Enhance the signal strength of your car phone，Therefore, the possibility of calling for rescue is also very high。

The small "shark fin" antenna is very effective，Not only enhances the communication signal、GPS signal，Can also release static electricity，Greatly improves the fuel economy of vehicles at high speed，The most important thing is to be able to save your life at critical moments。