Handheld Pressing Equipment
A handheld, device technology, applied in the direction of interference to communications, electrical components, etc., can solve problems such as disrupting public activities, key infrastructure government areas and large-scale conference safety, affecting aircraft take-off and landing, air safety hazards, etc.
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Embodiment 1
[0037] The hand-held pressing equipment that the preferred embodiment of the present invention provides, such as figure 2 As shown; the total length of the hand-held pressing device is 45CM, and the total width is 10.7 cm; the length of the handle 2 is 12 cm, which is to ensure the convenience of operating the power switch button 3 and the pressing switch button 4 with one hand;
[0038] When working: The core host of the hand-held suppression equipment is an integrated design. Through the power switch and suppression switch, the interference source module automatically controls each suppression source and power amplifier module. For blocking interference of remote control and image transmission signals, 1100MHz~1300MHz, 1558MHz~1592MHz are mainly used for blocking interference of GPS and BDS satellite positioning signals, effectively blocking the UAV flight control system and signal transmission system, so that it can The loss of flight control commands and satellite positio...
Embodiment 2
[0040] Hand-held pressing equipment provided by the invention, such as image 3 Shown; Adopt the pistol structure, the operator holds the handle 6 of the gun body, and the knuckles pass through the ring hole to touch the pressing switch button 7, which is very convenient for one-handed operation. The power button of this structure is set at any operable position; because the power button is a one-time switch when in use; and for different types of pressing equipment, the nameplate is placed in the nameplate placement port provided on the outer wall of the barrel.
[0041] When working: if Figure 4 As shown, considering the frequency range of the signal source is 1GHz to 20GHz, it is difficult to use a phase-locked loop to output directly, so a loop is used to output 10GHz to 20GHz, and the frequency is switched by a switch. When outputting 10G to 20G, The switch strobes the direct channel to output directly. When outputting 3-10G, the switch strobes the frequency divider. Th...
Embodiment 3
[0043] On the basis of Example 2, do phase noise analysis; according to the actual test, when the phase detection frequency of HMC704 is 100MHz, the noise floor in the fractional frequency division mode of the main ring=-216+10log10000000=-136dBc / Hz, and the highest output frequency is 15GHz , the phase noise deterioration multiple N=15000 / 100=150, 20log150=43, -136+43=-93dBc / Hz@10KHz. According to the VCO manual, its phase noise is -70dBc / Hz@10KHz, and because the loop bandwidth has the characteristics of a high-pass filter on the VCO phase noise, in order to reduce the influence of the VCO phase noise, the loop bandwidth should be larger, preliminary consideration is 300KHz, and the noise introduced by the VCO at this time is -70-20log30=-98dBc / Hz@10KHz. In addition, it can be inferred from the reference signal that the final result of the superposition of the two main phase noises of the PLL can reach - 85dBc / Hz@10KHz.
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