MULTI-BAND ANTENNA FOR GSM, UMTS, AND WIFI APPLICATIONS

摘要

The multi-band antenna (100) described herein includes multiple antenna elements (r26, 13$,; 140) that collectively resonate in multiple different frequency bands. One exemplary antenna (100) includes first and second vertically spaced antenna elements (120, 130) that connect to a ground plane (110). A feed antenna element (140) positioned between the first and second antenna elements (120, 130) connects to an antenna feed (148). The electro-magnetic coupling produced by the arrangement of these antenna elements (120, 130, 140) produces multiple resonant frequencies, and therefore, defines multiple operating frequency bands of the multi-band antenna (100).