Since the metal blocks block the transmission of the wireless signal, necessary for mobile coverage, smartphone manufacturers have had to resort to the technique of placing the antennas outside the terminal in order to create these with the metallic bodies that are so fashionable lately. How exactly do these antennas work?

Of course, if we want to make a smartphone with a metal body, it would act as a barrier for the internal antenna, so we would be forced to place them outside. But logically we need a modern design, we cannot put the extendable antenna that the mobile phones of yesteryear had because today the appearance is a fundamental part of the design of a smartphone. For this reason, all smartphones with a metal body have the antennas on the outside in one way or another.

Apple pioneered this technique with its iPhone 5. The entire body of the iPhone 5 was made of metal (a one-piece aluminum alloy). Of course, this increased the difficulty of providing the device with good coverage, because in this case, what Apple did was integrate the antenna into the metal piece, but when it was held with one hand to talk on the phone, the signal was often lost. coverage. For this reason, the decision was made to use two separate antennas, one above and one below, and isolated from each other, to guarantee that at all times it would have an external antenna to catch coverage.

Since the iPhone 6, what Apple has done is adopt a conductive plastic injection process for the antennas. The body of the terminal had a better integrity and the coverage was not lost, because as with the iPhone 5, the two antennas work independently. With the arrival of the iPhone 7 this year this has improved even more, since upward curved “ARC” antennas are now adopted, further improving not only coverage, but the ability of the smartphone to capture more signal bands and not interfere with WiFi, GPS, Bluetooth and more. Apple pioneered this design and it was followed by the Meizu Pro 6, and later by the Vernee Mars, which also use this type of curved antenna that we already talked about in depth a few weeks ago.

At the moment, only these three terminals use the most modern method of locating and manufacturing the antennas (the curved ARC), but many more are taking example. We have already told you many times about the Vernee Mars, the latest to incorporate this trend, a terminal with some very interesting features (Full HD screen, 4 GB of RAM, deca-core processor, etc.) that can still be obtained at a promotional price , for just under 180 euros with shipping included in the GearBest online store.