Patent ID: 6553239
Filing Date: 2003-04-22
Classification: H04W,Y02D

Abstract:
A transmitter system for a short range wireless point to multi-point communications system, comprising:a transmitter operable to broadcast a plurality of channels over a given frequency band, each channel associated with a different one of a plurality of sub-frequency bands of the frequency band; a plurality of transmitting antennas, each transmitting antenna including a plurality of linear arrays, each linear array having a plurality of radiating elements and a plurality of exciter stubs, each exciter stub being aligned with an associated radiating element, each linear array associated with a different one of the plurality of channels to broadcast information over an associated sub-frequency band of the frequency band, each of the plurality of transmitting antennas having a polarization type different than that of an adjacent transmitting antenna, wherein each exciter stub and associated radiating element are spaced to control a phase between radiating elements.