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The current development bottleneck of portable mobile phone jammers

The current development bottleneck of portable mobile phone jammers

  • 2023-01-04

phone jammer


If you look back at the hand-held portable mobile phone jammers ten years ago, you will intuitively feel that the shape of the hand-held shielding devices at that time was so small that it could be held completely with one hand. Their hosts, including antennas, are all Sizes including, will not exceed the range of one hand. At that time, such mobile phone jammers were favored by many customers. After some customers purchased them, they could be used directly in their pockets or handbags. But today, we can no longer see such a small and exquisite handheld shielding device. This is not because there is no customer demand, but the actual situation is that with the continuous upgrading of mobile phone communication technology, various manufacturers basically can no longer produce it. What are the technical bottlenecks encountered in the development of portable mobile phone jammers?

Ten years ago, 2G and 3G mobile phones were widely used. At that time, 4G communication technology had not yet been put into use, and 5G communication was out of reach. When there are only 2G and 3G mobile phones, or to achieve complete shielding of mobile phone signals, it is only necessary to perform signal shielding on the communication frequency bands used by these mobile phone standards. The frequency bands of wireless frequencies used by 2G and 3G are: 800MHz, 900 MHz, 1800 MHz, and 2100 MHz, a total of 4 frequency bands. If you add the standard WiFi2.4G/Bluetooth on the mobile phone, that is, the 2400 MHz frequency band, there are a total of 5 signal frequency bands that need to be shielded. From this point of view, it is not too complicated and difficult to integrate 5 signal shielding modules and supporting power boards, main control boards, power supply batteries, and transmitting antennas into a small handheld terminal.

However, the development of mobile communication technology is non-stop. In just ten years, 4G and 5G have been launched one after another and have been widely used. However, the launch of 4G and 5G does not directly follow the original communication frequency bands of 2G and 3G, but newly enables several high-frequency frequency bands, including: 700 MHz, 1900 MHz, 2300 MHz, 2600 MHz, 3400 MHz , 4800 MHz, etc. In addition, current smartphones use dual-band wireless network technology, and the two frequency bands of WiFi2.4G/WiFi5..8G can be selected and switched at will. These newly added frequency bands are added to the 2G/ The 5 frequency bands of 3G are obvious: if a mobile phone with 5G function needs to be effectively shielded, then this mobile phone jammer will include at least 10-12 shielding modules.

The number of modules for shielding signals has reached 10-12, which has brought great difficulties to the manufacturers of mobile phone jammers, especially how to miniaturize the mobile phone shielding equipment, how to reduce the appearance size as much as possible, Lightweight and long enough battery life? It is not difficult to see the pain points and difficulties that restrict the hand-held and portable mobile phone jammers.

It is precisely because the number of modules includes at least 10-12, which is at least one more than the small equipment ten years ago, and the increased frequency band modules themselves need to have enough installation space, and the number of antennas corresponding to them must also be increase, the capacity of the battery powering it must also increase accordingly. These problems follow one after another, and each problem will bring great difficulties to the portability and miniaturization of mobile phone jammers.

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