FREQUENCY MULTIPLIER Russian patent published in 1998 - IPC

FIELD: superhigh-frequency engineering. SUBSTANCE: frequency multiplier has cascaded input and output microstrip filters and varactor diodes connected in parallel to them. Output cavity of input filter also functions as input cavity of output filter, one or both of halves of its strip conductor are grounded through varactor diodes. First resonant frequency of output cavity of input filter equals input power frequency; second resonant frequency equals output power frequency. First resonant frequency of input filter input cavity equals input power frequency; third resonant frequency is higher than output power frequency; output power is supplied to it through voltage node as second resonant frequency. Second resonant frequency of output filter output cavity equals output power frequency; output power is taken off cavity in voltage node at input power frequency. First resonant frequency of output filter output cavity equals output power frequency. EFFECT: simplified design, improved accuracy. 4 cl, 1 dwg