A shirt with a copper wire sewn into it, and a small transmitter that then retransmitts the cellular signal to and from your and everyone's phones. So you and your community of antenna shirt wearers have a good signal wherever you go.-- pashute, Nov 03 2021 Wonder-Media_20Bra [xenzag, Nov 05 2021] Hat shirley-- pocmloc, Nov 03 2021 Too much copper right against your body could become a copper salt which is one of those bad things for you...-- RayfordSteele, Nov 03 2021 Ha! [pashute] yes - it seems like two ideas combined - antenna in clothing: ( perhaps done as a concept in a1s link, but not WKTE) and an altruistic human signal-booster, using said antenna. So worthy of a [+] for altruistic thinking.
As an aside, I had an animated debate with a radio systems engineer about the plural of the word antenna. we concluded that insects have antennae, and radios have antennas.
I think (in the UK at least) you would run into transmitter licensing issues. Youd also have problems with interference, power supplies, and possibly power RF next to skin.
I remember a discussion with someone who lived in a remote valley in the Highlands. He wanted to use a passive array (a receiver antenna passively feeding a transmit antenna) to beam TV signals to his house- effectively a kind of waveguide. He was told by the Radiocommunications Agency that it wouldnt be allowed as it was technically a transmitter!-- Frankx, Nov 04 2021 See last link for Wonderbra version posted in 2010. I always thought this was one of my best ideas.-- xenzag, Nov 05 2021 random, halfbakery