FAST LOCK TIME FRONT END FOR T.D.M
Original Publication Date: 1988-Oct-01
Included in the Prior Art Database: 2001-Oct-30
For aTime Domain Multiplexed communication channel, using vector modulation (i.e., quadruture carriers), it is required to switch from receive to transmit, and viceversa, in a fraction of the frame time; this amounts to sub-milisecond switching. It is also required, while in transmit mode, to provide isolation to the receiver I.F. filter, so as to reduce any stored energy in said filter.