The original tapered chamber was developed to reduce stray signals normally associated with a more traditional rectangular chamber. In a tapered chamber, a feed antenna is placed at the throat of a tapered section. This chamber design had several problems: the original concept could not satisfy bo…

Wireless systems are linked together through an electromagnetic field that propagates from the transmitter to the receiver, and as a result engineers must be concerned with the transmitting and receiving antennas and the propogation path to improve service. Modern wireless systems have been develo…