Compact RF antenna

摘要

The antenna has a counterpoise (14), and a radiant unit (12) presenting an open loop shape and including two branches (16, 18) coupled to an antenna cable. The branches respectively define a zigzag forming portion (22) and a rectangular portion (26). The portions are set to resonate at a preset cellular frequency band and extend along parallel directions causing radio-frequency disturbance and coupling phenomena between the portions.