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A microwave gun is a powerful device capable of emitting microwave waves in a directed manner. You can make it yourself from the microwave. It requires the utmost care in both creation and use. Next, we list why we need this homemade device.
How to use a directional microwave
A powerful microwave gun can be used for the following purposes:
- Destruction of beetles and other harmful insects. Microwaves turn liquid molecules into steam – this way you can exterminate the bugs that gnaw on wooden buildings. The wood itself is not affected by microwaves.
- Melting of non-ferrous metals.
- Drying and sterilization of cereals (kills bugs and bacteria).
- Disable listening devices. Microwaves interfere with the operation of any “spy” devices.
- Interference for the neighbor’s TV, turned on at full volume – you can easily turn down the sound. It should be noted that telephones hang 10 meters from the cannon, and sound distortion occurs in computers and TVs. Prolonged exposure to these devices is prohibited – they can explode.
- Ignition of fluorescent lamps from a long distance.
- Boiling a small amount of water.
How to make a microwave gun
You will need a microwave – any will do, even a burnt one. We will make a gun from a magnetron – this is the main element of any microwave oven. It must be in working order. To create the device you will also need:
- Container – for example, a tin can. The best option is a loudspeaker enclosure.
- Wire and other small things that may come in handy when connecting parts of the device.
The first step is to remove the magnetron. Initially, this element was created to generate microwave electromagnetic oscillations in radar stations (radar stations). Microwave ovens have magnetrons that generate microwaves at a frequency of 2,45 GHz.
How a magnetron works
In appearance, the emitter resembles a radiator topped with a pin. The radiation power is 0,7-0,8 kW. If you buy a magnetron from your hands, on the radio market, it will cost you about 800 rubles.
The circuit diagram allows you to thoroughly understand the magnetron, which is essentially a diode. The cathode is heated, electrons are knocked out of it. The anode is cold, it has resonators that complicate the form of the electric field formed in the emitter. The latter is placed between coils with current – they create a magnetic field that bends the rectilinear path of electrons. Without the action of the magnetic field, the electrons would tend to the anode in a straight line, and so the path of the electrons is curved under the influence of the Lorentz force.
It is necessary to provide power to the emitter: for example, from a converter with a charger from a computer uninterruptible power supply.
It is necessary to work with a gun very carefully: it is impossible for the radiation to be focused on the body, it is especially dangerous for the eyes.
Why do you need an antenna
For purposeful action, a microwave gun needs an antenna. To do this, make a hole in the jar.
In a jar with a height of 175 mm and a diameter of 75 mm, a hole with a diameter of 20 mm is made on the side, stepping back from the bottom by 37 mm. The magnetron is taken out of the stove body, and the wires leading to it are lengthened with wire.
When designing, be careful. A microwave device based on a magnetron gets very hot, so do not turn it on for a long time. Microwave radiation should be feared: its effect on the body has not been fully studied. When working with the emitter, be sure to use protective equipment.