Patent ID: 8639191
Filing Date: 2014-01-28
Classification: H04B

Abstract:
1. A communication system comprising: a communication path capable of conveying communication signals, the communication path comprising a cable having two substantially parallel separated conductors terminated with a resistance corresponding to a characteristic impedance of the communication path, a plurality of communication devices, each communication device adapted to receive and generate VHF or UHF communication signals, a near field antenna associated with each communication device, the near field antenna being coupled to the communication path, and provided sufficiently near to the communication path, to couple VHF or UHF communication signals to or from the communication device to the communication path, wherein an impedance of the near field antenna reflected onto the communication path is small compared to the characteristic impedance of the communication path, and wherein the near field antenna is provided on a non-conductive substrate including a plurality of tracks on one side and a shield on another side.