Tunable magnetostatic surface-wave-oscillators

A tunable S-band delay line oscillator using magnetostatic surface-waves is described in this paper. This oscillator is made of two monolithic magnetostatic surface wave delay lines in the feedback loop of a solid-state amplifier. Experimental data are presented. This device is compared to an oscillator using only one delay line and multibar parallel - strip transducers in order to select an oscillating single mode.