Patents Assigned to Amstar Technical Products Co., Inc.
  • Patent number: 4549185
    Abstract: A system and method is disclosed for using a combining network to combine antenna beams from different frequency bands so that the same port on the signal distribution system can be used for two or more beams produced by a multidirectional antennae array so that the size of the signal distribution system required is reduced. The combining network uses a series of multiplexing filters which maintain low loss within the antenna frequency bands and a good impedance match at the output port over the frequency range of the combined beams. Only the beams are combined which are either oriented in a different direction or which are not adjacent in frequency so that the problem of signal cancellation at cross-over frequencies between adjacent bands is eliminated.
    Type: Grant
    Filed: November 3, 1981
    Date of Patent: October 22, 1985
    Assignee: Amstar Technical Products Co., Inc.
    Inventor: Thomas O. Dixon