Wilkinson power divider capable of enhancing low-frequency port isolation
一种端口隔离、功分器的技术,应用在电子信息领域,能够解决大插入损耗、系统性能不利、性能达不到使用条件等问题,达到拓宽带宽、增强隔离度的效果
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Embodiment 1
[0035] see figure 1 and figure 2 A Wilkinson power divider capable of enhancing low-frequency port isolation includes a bottom layer, a middle layer and an upper layer, the bottom layer is a printed metal floor (25), the middle layer is a dielectric substrate (1), and an upper layer of microstrip lines, isolation Resistance and capacitance (2)-(24).
[0036] The printed metal floor (25) is made of thin metal copper material with a thickness of about 0.1 mm.
[0037] The dielectric substrate (1) of the intermediate layer is made of Rogers RT / duroid5880 dielectric material with a dielectric constant of 2.2, the dielectric constant εr=2.2, the thickness of the dielectric substrate is 0.762mm, the length of the dielectric substrate is 277.5mm, and the width is 120mm.
[0038] see figure 2 , the inner pin of the first SMA joint (26) is welded to the input port microstrip line (23), and the outer pin is welded to the printed metal floor (25); the second SMA joint (27) is conne...
Embodiment 2
[0045] refer to Figure 4 , the port characteristics of the Wilkinson power divider that can enhance the low-frequency port isolation are tested by a vector network analyzer (29), and the model of the vector network analyzer is Keysight E5080A. Test cable 1 (30) connects port 1 of the vector network analyzer (29) to the first SMA connector (26) of the power splitter, and test cable 2 (31) connects port 2 of the vector network analyzer to the power splitter The second SMA connector (27), this connection is used to test the transmission coefficient between the input port and output port 1 of the power divider. Test cable 1 (30) connects port 1 of the vector network analyzer (29) to the first SMA connector (26) of the power splitter, and test cable 2 (31) connects port 2 of the vector network analyzer to the power splitter The third SMA connector (28), this connection is used to test the transmission coefficient between the input port and the output port 2 of the power divider. ...
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