Abstract: Techniques, apparatus and systems that use one or more composite left and right handed (CRLH) metamaterial structures in processing and handling electromagnetic wave signals. Antenna, antenna arrays and other RF devices can be formed based on CRLH metamaterial structures. The described CRLH metamaterial structures can be used in wireless communication RF front-end and antenna sub-systems.

Abstract: Apparatus, systems and techniques for using composite left and right handed (CRLH) metamaterial (MTM) structure antenna elements and arrays to provide radiation pattern shaping and beam switching.

Abstract: Techniques, apparatus and systems that use one or more composite left and right handed (CRLH) metamaterial structures in processing and handling electromagnetic wave signals. Antennas and antenna arrays based on enhanced CRLH metamaterial structures are configured to provide broadband resonances for various multi-band wireless communications.

Abstract: An integrated K-port antenna where K is an integer equal to 2 or greater and where the antenna is sufficiently small that it can be enclosed by K−1 overlapping spheres each having a diameter of &lgr;/2 where &lgr; is equal to c/f and f represents an operating frequency of the antenna.

Abstract: A wireless communication device comprising a signal processing device coupled to a cluster of multiple port antennas that can simultaneously transmit and/or receive communication signals. The cluster of antennas operates within a frequency band having maximum frequency f, and at least a pair of the antenna ports is placed in a volume of space whose longest linear dimension is &lgr;/3 or less where &lgr; is equal to c/f. During operation of the antenna cluster, the radiation patterns from different antennas have main lobes that point in different directions and have correlations of 0.7 or less with respect to each other.