Slot-Coupled Multisection Quadrature Hybrid for UWB Applications

Authors:

27 February 2009

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Wireless Components Letters

Vol. 19 (3) , 143-145
DOI:10.1109/lmwc.2009.2013700

Abstract

We present a three-section quadrature hybrid based on slot-coupled directional couplers, which operates over a bandwidth from 3.1 to 10.6 GHz. A prototype has been fabricated which exhibits a return loss better than 20 dB, isolation around 20 dB, an amplitude imbalance between output ports of less than plusmn0.75 dB and a phase imbalance between +1^deg and -3^deg across the 3.1-10.6 GHz band. This design outperforms previously reported results for ultra wide band operation.

Keywords

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