For mounting an antenna device on a first side of a panel body, a mount screw is protruded from the antenna device and formed with a slit extending from a distal end face thereof in an axial direction thereof. A washer has a first engagement member extended from a main body. The washer is adapted to...http://www.google.es/patents/US7222829?utm_source=gb-gplus-sharePatente US7222829 - Antenna mounting structure
