Unlock instant, AI-driven research and patent intelligence for your innovation.

A frequency-domain blocking wireless signal blocking method

A wireless signal, blocking technology, applied in the direction of interference to communication, electrical components, etc., can solve problems such as difficult synchronization of base stations, interference of surrounding base stations in designated shielded areas, etc., to solve interference, ensure shielding reliability, and reduce energy. The effect of consumption

Active Publication Date: 2019-03-08
福建澳瀚信息技术有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the third and fourth generation mobile communication networks, time-division duplex technology is introduced, and the uplink and downlink frequency bands are exactly the same. It is difficult to synchronize with the base station by using the traditional blind scan technical solution, so there is obvious interference to the surrounding base stations in the designated shielding area.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A frequency-domain blocking wireless signal blocking method
  • A frequency-domain blocking wireless signal blocking method
  • A frequency-domain blocking wireless signal blocking method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] see figure 2 , image 3As shown, the frequency domain blocking wireless signal blocking device of the present invention includes a receiving antenna, a splitter, a preamplifier module, a frequency processing module, a power amplifier module, a combiner and a transmitting antenna connected in sequence;

[0038] The frequency processing module includes a down-conversion module, an analog-to-digital converter, an FPGA chip, a digital-to-analog converter and an up-conversion module connected in sequence, the down-conversion module is connected to a preamplifier module, and the up-conversion module is connected to The power amplifier module;

[0039] Or the frequency processing module includes at least one frequency processing unit, and the frequency processing unit includes a local oscillator (that is, a local oscillator), a first phase-locked loop, a second phase-locked loop, a first voltage-controlled oscillator, a second voltage-controlled controlled oscillator, a fir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a frequency domain blocking type wireless signal blocking device comprising a receiving antenna, a divider, a preamplifier module, a down-conversion module, a frequency processing module, an up-conversion module, a power amplifier module, a combiner and an emitting antenna, which are connected in sequence. The frequency processing module includes an FPGA chip, a digital-to-analog converter and an analog-to-digital converter. The analog-to-digital converter is connected with the down-conversion module and the FPGA chip. The digital-to-analog converter is connected with the up-conversion module and the FPGA chip. The device is of low radiation.

Description

technical field [0001] The invention relates to a signal blocking device, in particular to a frequency domain blocking wireless signal blocking device and method. Background technique [0002] With the rapid development of mobile communication technology, mobile communication-related products and services have penetrated into every corner of society. While mobile communication technology brings great convenience to people's life, it also makes it possible for a small number of people to use mobile communication technology to engage in illegal activities such as cheating in exams and leaking state secrets. Therefore, in some important places such as government agencies, armed police stations, prisons, schools, etc., it is necessary to deploy signal jammers to shield the signals of mobile communication devices such as user equipment, thereby preventing a few people from using mobile communication technology to engage in illegal activities. Activity. [0003] The common signa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04K3/00
Inventor 陈鲁平陈赋
Owner 福建澳瀚信息技术有限公司