Miniature C-band band-pass filter with low insertion loss and excellent high-order harmonic suppression
A high-order harmonic suppression, micro-strip technology, applied in the field of filters, can solve the problems of limitation, volume and large insertion loss, and achieve the effects of low cost, good high-order harmonic suppression, and low loss
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[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0015] combine figure 1 , figure 2 , image 3 , a C-band low insertion loss high-order harmonic suppression microfilter of the present invention, the C-band low insertion loss high-order harmonic suppression microfilter includes a surface-mounted 50 ohm impedance input port P1, input resonance stages L6, C6 , The first level parallel resonance unit L1, C1, the first zero point setting circuit L12, C12, the second level parallel resonance unit L2, C2, the second zero point setting circuit L23, C23, the third level parallel resonance unit L3, C3 , the third zero-point setting circuit L34, C34, the fourth-stage parallel resonant unit L3, C3, the fourth zero-point setting circuit L45, C45, the fifth-stage parallel resonant unit L5, C5, the output resonant stage L7, C7, the first Coupling capacitor C8, second coupling capacitor C9, surface-mounted 50-ohm imped...
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