BROADBAND FREQUENCY SYNTHESISER

摘要

FIELD: radio engineering. ^ SUBSTANCE: device comprises a frequency-tuned signal source, a generator of control commands and serially connected units of frequency tuning range expansion, every of which comprises a divider with a switched division ratio, a mixer and a band-pass filter. ^ EFFECT: increased width of frequency tuning range with provision of high purity of output signal spectrum and high speed of frequency tuning. ^ 4 cl, 10 dwg