RFID is Poised for Change

They would be amused at the frenzy of wildly different passive FF UHF tags developed for overcoming the problems of reader to reader interference, signal absorption and reflection at that frequency. With a whimsical smile they will note that the problem was actually solved another way and the best selling UHF tags employ the most primitive pattern of all because they are used on such things as A) Air baggage where Faraday cages or tunnel readers solve the problem and B) Bookshops and apparel stores where the problem is largely non-existent due to low reader density and a largely dry and non-metallic environment.