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Characteristics of PCB, FPC and narrowband IOT antenna
1、 Narrowband IOT antenna
The 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 wavelength, so the lower the signal frequency, the longer the antenna.
In order to achieve the transmission effect of the long antenna, the short antenna needs to increase the transmission power, so the intercom needs to transmit signals, which are all long external antennas, while the FM radio only receives and does not send, and there is an internal receiving antenna. 4G (700-2600mhz), WiFi and Bluetooth (2.4GHz) and GPS (1.5GHz).
These commonly used narrowband IOT antenna communication methods can be used as built-in antennas. For small-sized products such as mobile phones, wearable designs and smart homes, external antennas are rarely used, and internal antennas are generally used. High integration, more beautiful product appearance, slightly weaker performance than external antenna.
2、 Characteristics of PCB antenna
An antenna is a specific length of wire. This line can also be drawn on the PCB, which is the PCB antenna. PCB antennas are widely used in single band module circuit boards such as Bluetooth module, WiFi module and ZigBee module. Advantages: almost no cost, 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 board 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, and can be used as a complex antenna with more than ten frequency bands such as 4G. It has good performance. Because of its good flexibility, FPC is easy to paste on arc and irregular planes. The cost is also relatively low.