GSM capable microchip. How small can they be?

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KimvdLinde

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How small could you make the GSM microchip? I am thinking, would it be possible to make a microchip of the same size as the chips used for animal chipping that would be picked up by GSM receivers? (And I am thinking no need for anything else). if such a microchip would be available, it would dramatically simplify tracking stolen smaller animals like cats and expensive pet birds. Some pet birds cost US$10,000, and I am sure that if there is a chip that makes tracking possible, they will be sold to people. So, how small could such a chip be made?
 

The problem is not likely to be the size of the chip - indeed the die of highly integrated GSM transceivers is already sufficiently small. I'd expect the battery and/or antenna (not to mention SAR/exposure guidelines) are going to be your most significant obstacles to subcutaneous trackers...
 

I have already contacted a company that makes chips that convert body heat to electricity, and the number of times a day that the chip has to send can be rather low as the purpose is to track animals when they are stolen. There are already animal GSM/GPS trackers that can be on a collar, and those send much more frequent. Do you need an antenna for sending? I would not think so.
 

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