15 years of experience, the manufacturer tells you the function, principle and precautions of the shielding cover of the wireless module

Module shield, because wireless modules have been used in various fields of the Internet of Things, such as wireless meter reading applications, wireless charging piles, smart thermostats, etc., wireless modules are the first step to achieve communication. It is the most important link in the modern Internet of Things, and it can be said to be very popular in the market. The classification of wireless modules is also diversified, and wireless modules with various functions emerge in endlessly on the market. But have you noticed that most wireless modules come with a metal casing? Do you know what effect this metal shell can play on the wireless module? The metal shell on the wireless module is called the shielding cover, which is one of the hardware facilities of the wireless module. Its main function is divided into two: 1. Prevent interference and radiation to the outside world when the wireless module is working; the greater the power of the wireless module The interference and radiation will be correspondingly larger, so adding a metal casing can reduce these interference and radiation to a certain extent. 2. Shield the interference from the outside world to the wireless module; in the working environment of the wireless module, there are many complex interference sources, such as the external electric field and magnetic field, which are invisible and intangible interference sources. After adding a shielding cover to the wireless module, these external interference sources can be well isolated. The working principle of the shielding cover: Use the shielding cover to enclose important functional components such as relays, chips, single-chip computers, circuit boards, etc. that need to be protected to form a protective circle, which can effectively prevent the radiation interference generated by the wireless module from spreading, or Prevent external interference sources from interfering with the normal operation of the wireless module. Note for shielding cover: 1. The shielding cover is not a necessity. We can judge whether the wireless module needs a shielding cover according to the actual situation. For example, considering the cost, appearance, actual equipment usage, etc., determine whether a shielding cover is needed. 2. When using a shielding case, there are many factors to consider, such as the size of the shielding case, the distance between the shielding case and the electronic components, the material of the shielding case, etc. These factors are all very important; because the shielding case is designed If it is not ideal, it is likely to affect the performance of the wireless module. The shielding cover on each wireless module of Silicon Transmission Technology is carefully designed by our hardware engineers, which can shield most of the external interference and ensure the normal operation of the module. In general, the shielding cover is very important for the wireless module. One is that it can improve the anti-interference ability of the wireless module. The second is that the stronger the anti-interference ability, the correspondingly the transmission distance of the module will be increased. Therefore, the wireless module adds a shield. The cover shell is still very necessary. To increase the wireless control distance, simply pursuing high sensitivity or increasing the transmitting power of the transmitter cannot completely increase the control distance, because in practical applications there will be factors such as power supply, electromagnetic interference in the working environment, or power ripple interference, so it must be integrated Consider the various anti-interference capabilities of the RF receiving end. Our company has introduced CC1310PA, SX1278PA, SI4463PA 1W high-power wireless transceiver modules with shielding cover. These products are all 433MHz wireless transceiver modules with high sensitivity and strong anti-electromagnetic interference ability. They are suitable for wireless remote control products in noisy environments. Hardware, 15 years of ingenuity focusing on module shielding, 20,000+ sets of shielding mold production experience, daily production capacity of 3 million strokes, shielding flatness production control of 0.07mm, partner of Fortune 500 companies. Choose, choose to rest assured!