METHOD OF HETERODYNE SIGNAL PENETRATION CONTROL IN DIRECT CONVERSION METHODS

摘要

FIELD: physics, radio. ^ SUBSTANCE: invention concerns radio communication and can be applied in multiband wireless communication devices. System and method of heterodyne (HD) frequency generation in a receiver or transmitter with zero intermediate frequency (IF) are claimed. Method of HD frequency generation in multiband wireless communication device involves receiving first signal from voltage-controlled generator (VCG) with VCG frequency within first frequency band; division of the first signal frequency by programmed value N to obtain second signal with downconverted frequency, with programmed value N change partially based on master signal; and first signal is mixed with second signal to obtain output signal with HD frequency within the second frequency band determined by the first frequency band and programmed value N. ^ EFFECT: reduced heterodyne signal penetration allowing receiver or transmitter to operate in several radio communication modes and bands and to comply with relevant technical specifications. ^ 50 cl, 8 dwg