Frequency and amplitude stabilisation of transmitters for c.w. radar

The requirements for frequency and amplitude stabilisation of the transmitter of a c.w. radar are derived, and loop gain and sensitivity values calculated. It is shown that the desired sensitivity characteristics are provided by a microwave discriminator described previously. The principal criteria in the design of a circuit are considered, and the results achieved with this circuit presented. It is shown that, although adequate performance can be achieved in practice, it is inferior to that which would be predicted.