Balance-to-unbalance signal filtering power divider
A signal filtering and unbalanced technology, which is applied in the direction of waveguide devices, circuits, connecting devices, etc., can solve the problems of large size, insufficient common mode suppression, and complex structure of filter power splitters.
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[0053] Example 1
[0054] The three-dimensional structure of a balanced to unbalanced signal filtering power divider is as figure 1 As shown, the relevant dimensions are as figure 2 Shown. The dielectric substrate 20 used has a relative dielectric constant of 3.55, a thickness of 2 mm, and a loss tangent of 0.0027. Combine figure 2 , The various sizes of the power divider are as follows: M1 = 4mm, M2 = 4mm, M3 = 3mm, L1 = 1.2mm, L2 = 0.2mm, L3 = 0.1mm, L4 = 21.96mm, L5 = 44.67mm, L6 = 43.78 mm. The entire structure is arranged axisymmetrically about the center line of the long side of the dielectric substrate 20.
[0055] The power divider of this example is modeled and simulated in the electromagnetic simulation software HFSS.13.
[0056] image 3 It is the S parameter simulation diagram when the differential mode signal is input in the embodiment. It can be seen that the center frequency of the power divider is 2GHz, and the rectangular coefficient is very high, which can wel...
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