Resources Contact Us Home
Base station antenna arrangement

Image Number 12 for United States Patent #5596329.

A smart antenna for a base station comprises a plurality of antenna arrays each capable of forming a multiplicity of separate overlapping narrow beams in azimuth, the arrays being positioned such that the totality of beams formed by the arrays provides a substantially omni-directional coverage in azimuth A plurality of r.f. transceivers is provided each for transmitting and receiving r.f. signals for one or more calls, with switching matrix means for connecting each transceiver with one or other of the arrays via beamformers. Each transceiver is connected by a switch matrix to a particular array to exchange r.f. signals with a remote station located in the area covered by one of the narrow overlapping beams. Means are provided for selecting for a given call more than one of the best received signals from the multiplicity of narrow overlapping beams and the selected signals are combined to form a single receive signal input for the r.f. transceiver for the given call.

  Recently Added Patents
Power conversion device for electric vehicle
Method for increasing expression of active tumor necrosis factor receptor family member-Ig fusion proteins
Tap initialization of equalizer based on estimated channel impulse response
Pattern generation method and pattern generation program
Image correction method
Interest point detection
Advanced CAPTCHA using images in sequence
  Randomly Featured Patents
Correction method and correction apparatus of mask pattern
Ink jet recording device
Rotor assembly for a combine
Driver for a semiconductor chip
Swimming pool with ladder
System for integrally generating NC data
Coating machine for the processing of chocolate and similar masses
Button drill bit structure
Method and device for rapidly inducing and then maintaining hypothermia
Image sensing apparatus