Broadband high-balance on-chip transformer Balun
An on-chip transformer and balance technology, which is applied to waveguide devices, electrical components, connection devices, etc., can solve the problems of low reflection and transformer Balun can not achieve low loss at the same time, achieve high balance, expand the working bandwidth, and meet the design requirements desired effect
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[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0030] Such as figure 2 As shown, a broadband high-balance on-chip transformer balun includes two first primary coils L1 and second primary coils L2 with the same wire width (the two form the primary coil), the secondary coil L3 and a metal ground plane . Different from Figure 1(a), figure 2 The connection relationship between the first primary coil L1 and the second primary coil L2 is cut off, and the center tap of the primary coil and the center tap of the secondary coil L3 are connected together and connected to the ground to realize a good single-ended-differential conversion function.
[0031] The center taps of the two planar spiral inductors constituting the primary coil and the secondary coil L3 are led out from half the length of the respective metal wires used to achieve good phase and amplitude balance at the same time. ...
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