Double-tuned microwave spectrum analyzer
A microwave spectrum and analyzer technology, applied in spectrum analysis, instruments, measuring devices, etc., can solve the problems of high design cost, complex scheme, and high design and implementation requirements, and achieve the effect of reducing measurement cost, less difficult implementation, and simple design
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[0014] see figure 2 , a double-tuned microwave spectrum analyzer, including a microwave amplifier, a switching filter matrix, a tuning frequency conversion unit, a first intermediate frequency amplifying and filtering unit, a second tuning frequency conversion unit, a second intermediate frequency amplifying and filtering unit and an intermediate frequency processing unit. The matrix is a single band-pass filter or an array composed of multiple band-pass filters arranged together. The primary tuning frequency conversion unit includes a first mixer, and the signal input end of the first mixer is connected with a microwave local oscillator signal source. The primary tuning frequency conversion unit includes a second frequency mixer, the signal input end of the second frequency mixer is connected with a radio frequency local oscillator signal source, and the first and second intermediate frequency amplifying and filtering units both include a signal amplifier and a filter conne...
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