Don't understand to ask: why some car antenna long, some antenna short?

Car Antenna

Car antennas are also called vehicle-mounted antennas,the main purpose of the car roof antenna design is to receive radio signals, including radio signals, GPS signals, and other wireless signals for vehicle communication. But there are other antennas installed depending on the purpose of the car. If the bus has DVB-T antenna, car TV antenna. Logistics and taxis are also equipped with GSM antennas and GPS satellite antennas.

Don't understand to ask: why some car antenna long and some antenna short?

At present, the antenna on the common car has these two configurations: rod antenna and shark fin.

The shape and design of an antenna is usually based on its functional requirements and space constraints. There are some differences in function between traditional antennas and shark fin antennas and shapes.

Traditional pole antenna

Traditional antenna shapes may include simple rod antennas, spiral antennas, whip antennas, etc., and their characteristics are as follows:

1. Single function: Usually each antenna is only responsible for a specific function, such as only for receiving radio station signals or GPS signals.

2. Easy installation: Traditional antenna design is relatively simple, installation and maintenance is more convenient.

3. Cost: Compared to integrated shark fin antennas, conventional antennas may cost less because they usually do not contain additional integrated components.

Shark-fin antenna

The shark fin antenna is inspired by the dorsal fin of a shark and is commonly used in modern cars, especially on high-end models. They have the following characteristics:

1. High integration: Shark fin antenna, also known as a combination of antennas, integrates a variety of antenna functions, such as GPS, radar, Wi-Fi, etc., reducing the number of antennas outside the body, making the appearance more concise.

2. Aesthetics: Due to its unique design, the shark fin antenna can be perfectly integrated with the streamlined design of the car, reducing visual interference while providing efficient signal reception.

3. Space utilization: In a limited space, the shark fin antenna can efficiently use space without taking up additional body surface.

In general, the choice of shark-fin antenna and traditional antenna shape mainly depends on the design philosophy of the automobile manufacturer, functional requirements, cost considerations, and expectations for the appearance of the vehicle. With the development of modern technology, rod antennas may not seem aesthetically pleasing, and modern cars tend to adopt shark-fin antennas for higher integration, better aesthetics and more efficient use of space.