5G

In a feat of reverse psychology, 5G scare started with rumors about China taking control over areas involving personal privacy and security of the US. It ended with the arrest of a woman in Canada and banning of Huawei technology from many countries including the US (BTW, what Uighurs have to do with Huawei's 5G?).

Mostly concerned with my own physical safety over privacy and other issues, i started to search and write on the subject. But before that i have to put down with some stipulations. In my opinion, formed after many years of being in the middle of a story that clearly involves agents of the Empire of Japan controlling many aspects of my life, i came to the conclusion that China has been fully taken over secretly by Japan, many years ago, under the camouflage of a communist dictatorship and nowadays is used as forced labor base for massive exports of electronics products in the US with the purpose of de-technologizing, de-educating, downgrading, and generally annihilating the work force and ultimately entire population of the US. If tomorrow China would stop exporting electronic goods to the US, US will be paralyzed because they don't have the capacity and readiness to take over this production that has already passed several levels ahead of anything produced in the US in the past, with the exception of Intel maybe.

After stumbling yesterday upon the existing standards for protection from levels of emissions of the "older" technology (1.6 watts/kg), that were probably adopted just to fit the technology and products, not to protect anything, without any scientific backing or studies, they are "just" starting to study the long term effects of "low level" microwave exposure, low meaning it does not instantly boil you, most of the studies searchable on the internet are dated after the "adoption" of the standards, which also proves many other people have second thoughts, and contemplating the enormity of the "allowance", of which many probably don't understand, what else can be said?

One typical, way too circulated American phrase: If you think that is bad, wait until 5G comes. (If you don't, do the same. It doesn't matter).

The main novelty brought by 5G is the way signal is transmitted to the tower (and back but that is not that interesting because of dispersion and distance). Ironically, with the purpose to save power, the emission is made directional and confined to a narrow beam which then can be much stronger (denser).

How narrow, about the size of the antenna itself. This way, the power density can be increased to levels allowing much higher speeds (for higher speeds you need more power to beat the noise which becomes important at higher frequencies modulation). Yes, you read right. With the same 3 watts or whatever, (power is limited due to probably using the same batteries), you emit a narrow beam instead of a spherical wave.

This way you eliminate waste of energy (most of the signal up to 4G goes to nowhere usable) the intensity of the signal can be hundreds of times higher using the same power.

At first it seems ok, if it's directional and does not go all around, it would go to the tower and not to your head. Maybe.

That's what i thought myself for a few seconds or so. But then, you hold your phone in your hand, right, the beam would go right through it? From what i read so far, the beam would follow the tower even if you moved around, actually it wouldn't make sense if it wouldn't, and phased array is the technology used in radars that can scan the area in front of the antenna many times a second, and the phone's inertial and gravimetric sensors together with GPS know its own position so it's perfectly doable, actually already done (though looking weird to me). So what happens when you turn around while pacing and speaking into your office and the tower moves on the other side of your head? Let's say they were conscious enough to embed in the design a function that would allow switching to another tower that is again facing the back side of your phone. But that other tower would be on the other side of the building, right, and the beam won't go through.

I wouldn't dare to say what others did, what would happen when you have a conference meeting with each member having his own beam following each its own tower (carrier)?

Here the technical details i've been trying to delay. How a phased array antenna inside your phone looks like and especially where it's located. (3 in this image).

How are they going to comply with the already immense limits, if the power would be the same 3 watts max but the beam would concentrate all that power in a few square inches?

And ultimately, why do we need all that, just to watch 4k movies on our phones when going in the park?

Here's a really smart one. (It's tough indeed to get radio signals going through metal, duh!)

"no one had demonstrated that it’s possible to build these antennas into phones with full metallic casings, as can be found in the high-end mobile devices from numerous manufacturers [didn't know numerous manufacturers have already manufactured numerous high and/or low end 5G mobile de-vices]. Now researchers from the Shanghai Institute for Advanced Communication and Data Science at Shanghai University in China have developed a 28 Gigahertz (GHz) beam-steering antenna array that can be integrated into the metallic casing of 5G mobile phones."

The trick is, the signal doesn't really go "through" the metal casing, it takes a detour through the glass first. Then it reflects and/or difracts on your head and provided the system is smart enough, will focus onto the tower and adjust strength, by trial and error, taking into account (or maybe not) your head's conductivity.  If  you don't believe me, take one of these, find where the tower is and keep it away from  your head and tower and tell me if you have any signal (nevermind, would probably still have diffraction on the edge of the case and some signal, maybe 25% would go through). Which brings me, this time to a rhetoric question, how the signal goes through "the metal casing" of the "high end" phones for the classic, 4G ones? (unless if the casing itself is the antenna). Nevermind, curiosity got the best of me. And after reading that, here's a good idea for the "high end" users. Better hold your phone with the metal case to your ear!