TWO-PHASE LC-GENERATOR OF QUADRATURE HARMONIC OSCILLATIONS Russian patent published in 2013 - IPC H03B27/00 

FIELD: radio engineering, communications.

SUBSTANCE: two-phase LC-generator of quadrature harmonic oscillations comprises a parallel oscillating LC-circuit, a double-cascade non-inverting active amplifying broadband element, the first cascade of which shall have larger input resistance, and the second cascade shall have larger output resistance, serially with an inductance coil L in the circuit there is a resistive element with low resistance or its equivalent, to which the input of the additional broadband amplifier is connected, at the output of which harmonic oscillations are produced, which are quadrature relative to harmonic oscillations at the output of the first cascade of the active element.

EFFECT: development of an LC-generator of two quadrature oscillations with a fixed phase shift, not varying in process of frequency tuning of generated oscillations.

2 cl, 1 dwg