An Enhanced Frequency-Ratio Coupled-Line Dual-Frequency Wilkinson Power Divider

This brief presents a novel design of a dual-band equal split Wilkinson power divider. It is based around a single coupled line section as core and uses stub-based port matching networks at each of the ports. It then incorporates only one isolation resistor, which is independent of frequency-ratio,...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2018-07, Vol.65 (7), p.888-892
Main Authors: Maktoomi, M. H., Banerjee, D., Hashmi, M. S.
Format: Article
Language:English
Subjects:
Circuits and systems
Coupled lines
Dual band
dual band circuit
impedance matching circuit
Mathematical model
planar circuit
Ports (Computers)
Power dividers
Prototypes
Resistors
RF/microwave circuit
Wilkinson power divider
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Summary:This brief presents a novel design of a dual-band equal split Wilkinson power divider. It is based around a single coupled line section as core and uses stub-based port matching networks at each of the ports. It then incorporates only one isolation resistor, which is independent of frequency-ratio, for achieving perfect isolation. Closed form design equations are developed for the general analysis of the power divider and design case studies are provided to evaluate the proposed design. The developed prototypes for frequency-ratios of 2 and 7 show a good agreement between the electromagnetic simulated and measured results and thus validate the reported theory.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2017.2749407