| 摘要 |
FIELD: radio electronics; signal processing devices such as delay lines used in radar, measurement technology, and communications engineering. SUBSTANCE: acoustic line is made of ferrite material having porosity of 0.3-6.0%, average grain diameter of 1.5-6 mcm, and pore radius of 0.3-7 mcm. EFFECT: reduced loss and improved nonlinearity of acoustoelectronic devices. |
