With the emergence of diversified market demands, there are also many types of modern car antennas, which have "evolved" into various shapes and functions. They are no longer limited to listening to radio, but cover wireless remote control, GPS positioning and 4G Internet access and other functions.

With the advent of the 5G era, more new technologies will be applied to automotive systems, which are likely to subvert the existing concept of car driving. These new technologies include car-to-car communication, car AI, etc., all of which are inseparable from cars Communication with the outside world, and the car antenna is the only hardware basis for this communication lifeline. Today, I will introduce you to a brief understanding of different types of automotive antennas, and discuss the development direction of automotive antennas in the future.

whip antenna

The whip antenna is an antenna that points to the sky. The antenna goes from the base to the top, from thick to thin. When the car is driving, the antenna will shake in the wind like a whip. Because the whip antenna is long, it has a relatively strong signal collection capability. Even in some remote places, the driver does not have to worry about the extreme situation of no signal. This type of antenna is mainly used in off-road vehicles or traditional old on the model.

Length is both an advantage and a disadvantage of the whip antenna. Due to the long antenna, it will not only increase the wind resistance of the car during driving, but also may break the antenna when passing through similar tunnels or low road conditions.

With the development of technology, the signal coverage is more and more extensive, and the super strong signal collection ability of the whip antenna no longer has the advantage. At the same time, in order to make up for the shortcomings mentioned above, the whip antenna has gradually developed into a retractable antenna style, which greatly shortens the length of the antenna and reduces the influence of wind resistance. Even so, the short and thick whip antenna affects the appearance of the vehicle and cannot become the mainstream direction of the market.

Built-in antenna

The built-in antenna, usually called "invisible antenna", has the advantage that it can be integrated with the body, neither affecting the beauty of the body nor the wind resistance of the body, but also providing the vehicle with the required wireless signals.

According to the location where the built-in antenna is installed, the common types are glass antenna, spoiler built-in antenna, instrument panel built-in antenna and other main types.

The glass antenna is mainly embedded in the windshield, rear window and side window glass of the car, and has excellent aesthetics and durability. The rear window hidden glass antenna not only receives FM signals, but also has the composite ability of heating and defrosting.

The spoiler built-in antenna integrates the spoiler and the antenna of the car body, which can receive FM/AM radio signals, and can also be used in combination with other media communication frequency bands. It is provided to the car factory through the integrated module design, which greatly reduces the difficulty of the structural design and assembly of the car factory to a certain extent.

Dashboard built-in antenna is an antenna developed to meet the development of car navigation system and realize the interactive transmission of in-vehicle information. It is generally embedded in the vehicle dashboard to realize GPS satellite positioning and other wireless communication applications, such as the intelligent vehicle-road collaboration application of DSRC.

In general, most of the built-in antennas in cars are designed to be integrated and integrated with the car body, but due to the metal properties of the car body itself, part of the performance of the antenna will be affected. At the same time, because the antenna function is relatively simple, the wiring harness layout is also relatively complex, and the later maintenance is difficult. If damaged, it must be replaced with original equipment, and the repair cost is high.

Shark Fin Antenna

The shape of the shark fin antenna resembles a shark fin and a vertical tail. The antenna is integrated with the body, which not only ensures the beauty of the body, but also effectively reduces wind resistance.

The shark fin antenna effectively overcomes the shortcomings of traditional whip antennas and built-in antennas. It mainly uses the latest electronic technology to integrate all the functions of ordinary antennas. Features. The shark fin antenna effectively integrates the radio FM antenna unit, the GSM communication antenna unit, and the GPS antenna unit. Using the principle of aerodynamics, it effectively eliminates the airflow noise of the traditional rod antenna and makes the driving quieter.