Antenna is an indispensable part of โมดูลบลูทู ธ, because of the current technology is not yet able to integrate the antenna into the semiconductor process chip, in addition to the core system chip in the โมดูลบลูทู ธ, the module antenna is another key component that affects the transmission characteristics of the โมดูลบลูทู ธ.

As a Bluetooth module, If it is only a short distance wireless communication, you may not need to consider the location and direction of the module, but a proper Bluetooth antenna design will help achieve more Good transmission quality.

ตัวอย่างเช่น, compare two common antennas for โมดูลบลูทู ธ on the market: IPEX interface external antenna and PCB on-board antenna.

The external antenna of the IPEX interface is the Cable Feeding independent antenna. Its advantages are: better field control, low insertion loss, good signal directionality, high efficiency, ความสามารถในการต่อต้านการแทรกแซงที่แข็งแกร่ง, and can stay away from the interference on the motherboard, and it does not need Too much debugging and matching, as a terminal manufacturer, only need to connect an IPEX antenna outside; แน่นอน, there are disadvantages: high cost and troublesome assembly.

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The PCB on-board antenna has the advantages of less space occupation, ต้นทุนต่ำ, no need to assemble the antenna separately, not easy to touch and damage, and easy assembly of the whole machine, but the gain will less than the external antenna.

ความไม่แน่นอน’s modules have different types of antennas, some of them utilize ceramic antenna, while most of theโมดูลบลูทู ธ include PCB antenna and supports install external antenna as well.