ELECTRICALLY TUNABLE CAVITY FOR IMPROVED BANDWIDTH
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2002-Jan-01
In radio products today an important parameter to have is wide bandwidth. Typically bandwidths of ten to twenty megahertz are achieved in today's modem designs. However, when requirements for exceptional selectivity are needed these wide bandwidths are. not possible. High selectivity is normally needed in repeater applications where the transmitter and receiver are both active at the same time. To prevent interference to each other a device such as duplexer is used to provide the necessary isola- tion. These typically have very narrow bandwidths and limit the frequency coverage ofthe system.