How to choose the manufacturing process of the FRP radome is determin by the use requirements of the antenna.
An antenna is a device that radiates radio frequency signals from a transmission line into the air or receives radio frequency signals from the air onto the transmission line.
On the other hand , The antenna is an impedance converter or an energy converter to convert the guided waves propagating on the transmission line. Converted into electromagnetic waves, which propagate in an unrestricted medium, and vice versa.
However , For the design of the wireless transceiver device used in the radio frequency system. The design and selection of the antenna are an important part of it. A good antenna system can achieve the best communication distance. For the same type of antenna, if the manufacturing process of the radome is different. And the size , the wavelength of the radio frequency signal will also be different. The lower the frequency, the larger the antenna required.
The antenna has an external antenna and an internal antenna.
The internal antenna inside the device , and the external antenna install outside the device . For small products such as handheld devices, wearable designs and smart homes. The internal antenna is a good choice. And the manufacturing process of FRP radome makes them have high integration and beautiful appearance. Internet of Things and smart hardware products need to transmit data online, so they all need to use antennas.
The smaller the space, the more frequency bands, and the more complicated the antenna design. External antennas are usually standard products. You can use the antenna of the required frequency band without debugging, just plug and play. For instance , express cabinets, vending machines, etc. usually use magnetic external antennas, which can be fixed on an iron shell. These antennas cannot place in a tin cabinet. Metal will shield the antenna signal, so it can only be placed outside. Above all, This article focuses on the classification and selection of antennas to introduce relevant information about antennas.
1.External antenna
According to the manufacturing process, radiation angle and direction of the radiation field of the FRP radome, external antennas can be divided into omnidirectional antennas and directional antennas.
- Omnidirectional antenna
An omnidirectional antenna, that is, a uniform radiation of 360° is shown on the horizontal pattern, and the manufacturing process of the FRP radome shows a beam with a certain width on the vertical pattern. Generally, the smaller the lobe width, the greater the gain.
- Directional antenna
Directional antenna refers to the manufacturing process of the glass fiber reinforced plastic radome in one or several specific directions. The signal of the mobile communication terminal is particularly strong. This kind of directional antenna has stronger anti-interference performance, and compared with omnidirectional antenna, its signal strength is better in the range of action.
2.Built-in antenna
The built-in antenna is an antenna installed inside the device and integrated with the device. For example, FPC antennas, PCB antennas, spring antennas, ceramic patch antennas, laser direct forming technology (LDS) and hardware shrapnel antennas, etc. all belong to the category of built-in antennas.
