.10 Mhz - 3ghz Broadband High Performance Signal Sources Developed

This subject derives from some project of"The design of 10MHz-3GHz high-powered signal generator", which is collaborated with one company. The integrative frequency synthesis technology of DDS+PLL+Sampling Mixer+ frequency multipliers,frequency dividers,filters and ALC is adopted In the designing of the 10MHz-3GHz signal generator. The final scheme is innovative and original not only in the technology but also in some module circuit.The hybrid frequency synthesis technology of DDS+PLL+Sampling Mixer is used in the subject. Using the method of frequency multipliers,frequency dividers,filters,ALC and Sampling Mixer, the broad band,fine frequency resolution,low phase noise function and specification of the system can be realized.The principle of frequency synthesis,DDS,PLL,DDS+PLL is introduced at first in this paper. Subsequently, the general architecture of the 10MHz～3GHz wide bandwidth,low resolution,low spurious frequency synthesis are introduced, then the feasibility of this architecture is elaborates. The ultimate testing result of this subject is represented and analyzed in detail. At last, the questions which must be pay much attention in the system design of each module, the functional realization of each module, and the ultimate testing result of this subject are represented and analyzed in detail.