Characteristics of PCB, FPC and narrowband IOT antenna
Time：2021-07-06 09:25:10 Author：Suzhou Cowin Antenna Electronics Click：
Internet of things and intelligent hardware products need antennas to transmit data online. The smaller the space and the more frequency bands, the more complex the antenna design. The length of the antenna is about 1 / 4 of the electromagnetic wave length, so the lower the signal frequency, the longer the length of the antenna.
In order to achieve the transmission effect of the long antenna, the short antenna needs to improve the transmission power. Therefore, the walkie talkie needs to transmit signals. They are all long external antennas, while the FM radio only receives but not transmits, and there is a built-in receiving antenna. For example, 2g (900MHz), 4G (700-2600mhz), WiFi and Bluetooth (2.4GHz), GPS (1.5GHz).
These commonly used narrowband IOT antenna communication methods can be used as built-in antennas. For small-size products such as mobile phones, wearable designs and smart homes, external antennas are rarely used, and built-in antennas are widely used. High integration, more beautiful appearance, and slightly weaker performance than the external antenna.
2、 Characteristics of PCB antenna
An antenna is a specific length of wire. This line can also be drawn on the PCB board, which is the PCB antenna. PCB antenna is widely used in single band module circuit boards such as Bluetooth module, WiFi module and ZigBee module. Advantages: almost no cost, and there is no need to debug again after one adjustment.
3、 Characteristics of FPC antenna
FPC antenna is equivalent to pulling out the antenna line on the PCB and using other external metal as the antenna. It is usually used in medium and low-end mobile phones and intelligent hardware products with complex frequency bands. Advantages of FPC antenna: it is applicable to almost all small electronic products. It can be used as a complex antenna with more than 10 frequency bands such as 4G, with good performance. Because FPC is flexible and easy to paste on arc and irregular planes. The cost is also relatively low.