cell phone shield  devices can be divided into three categories according to power. The antenna is either the internal antenna installed in the cell phone shield, and the external antenna installed outside the cell phone shield . The external antenna is also divided into plate antenna, fiberglass omnidirectional antenna, Yagi antenna, and so on. At present, your company has designed a stealth antenna that contains 5G full-band seamless coverage portable cell phone shield equipment, an airtight box of the operation panel, multiple transmission antennas set in the cell phone shield box, broadband RF power amplification module and broadband signal waveform generation module of the corresponding frequency band, and power supply;

 The input end of multiple transmitting antennas is connected with the output end of the broadband RF power amplification module of the corresponding frequency band, the input end of the broadband RF power amplification module of each frequency band of the cell phone shield is connected with the output end of the broadband signal waveform generation module of the corresponding frequency band, and the power supply supplies all broadband RF power amplification modules and broadband signal waveform generation modules; Each broadband signal waveform generation module includes a signal conditioning module and a signal generation module. The signal conditioning module of the mobile phone shielding device is connected with the external control terminal through the operation panel to control the signal frequency band range generated by the signal generation module, which can seamlessly cover all communication frequency bands and all possible remote control frequency bands within the 20MHz-6000MHz frequency band. The jamming effect distance is longer than the ordinary antenna.