As the 5G jammer follows the development of 5G simultaneously, it has already been recognized and used by the majority of users. However, unlike the previous 2G, 3G, and 4G eras, the vast majority of shielding devices in the 5G era no longer use the appearance of external antennas. Almost all manufacturers use 5G jammers in unison. The antenna and the main unit are all built-in assembly methods. This way, in addition to making the device have an overall aesthetic appearance, more importantly, since several 5G frequency bands have been added, the corresponding shielding modules also need to be increased accordingly. If the original 2G, 3G , 4G frequency band modules, the total number must exceed 10. With such a large number of modules and antennas, it is undoubtedly a good choice to use an integral package to cover all the components inside the case.

However, if all the key components of the 5G jammer are built and hidden, the most intuitive impact will be brought about. Customers will not be able to quickly tell how many shielding modules are used in this device. They do not know the number of modules and have no way to evaluate them. And analyze how the frequency band of this shielding device is divided.

The final shielding effect of the 5G jammer is closely related to the frequency band division and the number of modules of the shielding device. When the 5G era has not yet arrived, the shielding equipment at that time was more conventional and reasonable in the number of frequency band divisions was 8. When 5G comes out, based on our mainland China's 5G frequency band division standard, at least 700M frequency band, 3400M frequency band, and 3500M frequency band need to be added. In addition, the TDD-LTE frequency band originally assigned to China Mobile's 4G will be expanded from 2555-2655MHz It becomes 2515-2675MHz, and the bandwidth is increased from the original 100M bandwidth to 160M bandwidth. In order to ensure effective shielding for this frequency band, our suggestion is to split the frequency band into two, and the coverage bandwidth of each module It is advisable not to exceed 100M.