A miniature broadband monopole antenna design configured with integrated band-selecting filtering is disclosed. The antenna is electrically folded, and includes top and bottom monopole sections, with a meanderline to provide an inductive load between the two sections. The overall antenna structure can...http://www.google.de/patents/US7109927?utm_source=gb-gplus-sharePatent US7109927 - Miniature multi-band, electrically folded, monopole antenna
