Planar Compact Dual-Band Coupled-Line Balun with High Isolation

A planar circuit structure, which is based on three cascaded pairs of coupled lines, an open stub, and an isolation resistor, is proposed in this paper to design a compact dual-band balun with high isolation. This circuit features equal power division with out of phase, all ports matching, high isol...

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Veröffentlicht in:	China communications 2017-02, Vol.14 (2), p.40-48
Hauptverfasser:	Zhang, Weiwei, Wu, Yongle, Wang, Weimin, Shen, Xiaochuan
Format:	Artikel
Sprache:	eng
Schlagworte:	Dual band Impedance Mathematical model Ports (Computers) Resistors Scattering parameters
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