Magnetostrictive Delay Line for Video Signals

Initial development of a magnetostrictive delay line capable of delaying an IF carrier which is amplitude modulated by radar video frequencies is presented. Pulses of IF energy up to 7 mc have been successfully delayed. A typical delay line operated at 5 mc has an insertion loss of 82 db for 70-µsec delay and an attenuation of approximately 8 db for each additional 70-µsec of delay. This line has the advantage that it can be conveniently provided with multiple pick-offs.