Atomic radio arrives
A new antenna created with individual atoms
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The antennas of your devices allow you to connect to the WiFi network, talk on the phone, use your wireless headphones and much more. But all that takes up space, in the form of pieces of metal; a very valuable space when you also have to integrate all kinds of chips and a battery increasingly larger.
That's because the size of the antenna influences the wavelength at which they can work; specifically, the antenna must have a size half as small as the wavelength it wants to receive. Only in this way is it possible for the metal of the antenna to capture the radio waves and convert them into electricity.
Therefore, any device will need an antenna of a different length for each type of signal it wants to capture. The solution to this may be atomic radio, a concept that has the potential to revolutionize antennas as we know them; and most importantly, no need to have an antenna for each type of connection.
The key lies in the Rydberg atoms, whose name comes from Rydberg Technologies, the company whose employees have published a study in which they have reinvented the antenna; and in fact, it works completely differently. Said atoms are maintained in a gaseous state in a vapor chamber, in an excited state; that means that they are very sensitive to the electric fields that pass through them, and that the changes caused can be measured.
The idea of ??this antenna is to use a laser to constantly measure the state of atoms, which are specifically cesium; when an electric field passes through them, they will react in a certain way, and that can be interpreted as a signal. The system would only have to interpret those signals to obtain the transmitted data.
This type of antenna has many advantages, for example, that it does not require any electromagnetic protection; so it can be used in systems that receive electromagnetic radiation constantly, like satellites. But it can also withstand interference or directed attacks; It is only necessary to design the receiver so that it operates only in the bands that we want, ignoring the rest.
In addition, these steam chambers are only a few millimeters in size; in a current device that would mean gaining a lot of space suddenly that can be used for other things, or to create smaller and more manageable products.
This atomic radio, as its creators call it, will probably start in airplanes or ships, as an alternative method of communications.
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