Miniaturized Dual-Band Hybrid Couplers With Arbitrary Power Division Ratios

Branch-line and rat-race couplers are designed to have dual-band operation with arbitrary power division ratios. An elementary two-port is proposed to imitate the 90 deg section at the two designated frequencies with different characteristic impedances. The two-port consists of a stepped-impedance s...

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Veröffentlicht in:	IEEE transactions on microwave theory and techniques 2009-01, Vol.57 (1), p.149-156
Hauptverfasser:	HSU, Ching-Luh, KUO, Jen-Tsai, CHANG, Chin-Wei
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Bands Branch-line coupler Circuit design Circuit properties Circuits Couplers Division Dual band Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Impedance Insertion loss Microstrip Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Microwaves Miniaturization Power transmission lines Radio frequency rat-race coupler Simulation stepped impedance Transmission line theory Wireless LAN
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