A Wideband Balanced-to-Unbalanced Coupled-Line Power Divider

A compact wideband balanced-to-unbalanced (BTU) out-of-phase power divider (PD) is proposed in this letter. This novel circuit essentially consists of three pairs of cascaded coupled lines and a grounded resistor for output isolation. By using the even- (odd-) mode method analysis and the traditiona...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2016-06, Vol.26 (6), p.410-412
Main Authors: Weiwei Zhang, Yongle Wu, Yuanan Liu, Ghannouchi, Fadhel M., Hasan, Abul
Format: Article
Language:English
Subjects:
Balanced-to-unbalanced
common-mode suppression
Consistency
Differential equations
Impedance
Joining
Mathematical analysis
Microwaves
power divider (PD)
Power dividers
Resistors
Scattering parameters
Wideband
Wireless communication
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Summary:A compact wideband balanced-to-unbalanced (BTU) out-of-phase power divider (PD) is proposed in this letter. This novel circuit essentially consists of three pairs of cascaded coupled lines and a grounded resistor for output isolation. By using the even- (odd-) mode method analysis and the traditional transmission-line theory, closed-form design equations for equal power division with out of phase from one differential input to two unbalanced outputs, high output isolation and good common-mode suppression are obtained, simultaneously. In addition, an experimental PD is designed and fabricated. The good performance and the consistency between the simulated and measured results verify our design theory.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2016.2561400