| In modern electronic war, in order to receive one’s own needs in a complex and variable environment, the accuracy of the useful signal, to suppress unwanted signals, filter design is essential. YIG band-stop filter has good reliability, small size, high speed, high selectivity, wide sweep range, gradually receiver front-end applications.This paper studies the YIG double stopband filter technology, it is based on the magnetic properties of ferromagnetic substances spin ferromagnetic resonance principle and design. Its magnetic structure adopted in the design of integrated self-shielded magnetic circuit, the two band-stop filter resonant coupling the unit shared the same magnetic circuit in the same pole head, reducing the volume of the magnetic circuit, to ensure two-way stop-band filter channel same frequency characteristics.This paper studies the figures for the gyromagnetic dual stopband filter drive circuit technology and temperature characteristics of the data acquisition and compensation software design. The ferromagnetic resonance frequency is changed in each filter of each variable plus a small constant current, this current the YIG small ball. Superimposing the band rejection of the two-way filter stopband bandwidth will be changed in order to achieve the bandwidth of the filter is adjustable.6～18GHz YIG In this paper, the design of dual resistance band filter and excitation control software compensation technique, it has the engineering practicality, the insertion loss≤6dB the stopband width≥30MHz (_AT_-40dB) the3dB bandwidth≤300MHz. |
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