A UWB Filter with Multiple Notches
A technology of ultra-wideband filter and notch frequency, which is applied in the direction of waveguide devices, resonators, electrical components, etc., to achieve the effect of easy processing, easy integration, and compact structure
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[0031] Embodiment 1: as figure 1 , figure 2 , as shown in Figure 3(a) and Figure 3(b), an ultra-wideband filter with multiple notch frequencies, such as figure 1 In the shown ultra-wideband filter with four notch characteristics, the thickness of the microstrip dielectric substrate 1 is 0.5 mm, and the dielectric constant is 3.48.
[0032] Such as figure 1 The shown seventh-order bandpass filter 2 includes: the width of the microstrip line adopted by the first input / output port 11 and the second input / output port 23 is 1mm, and the length is 10mm. The length of the first short-circuit stub 12 and the fourth short-circuit stub 21 is 6.7 mm, and the width is 0.54 mm. The length of the second short-circuit stub 15 and the third short-circuit stub 18 is 6.35mm, and the width is 1.05mm. The length of the first unit element 14 and the third unit element 20 is 12.9 mm, and the width is 1.02 mm. The second unit element 17 has a length of 13 mm and a width of 0.96 mm. The diamet...
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