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Dual-band 3-way power divider and combiner based on CRLH-TLs

Published online by Cambridge University Press:  11 June 2015

Mohammad Bemani  and
Saeid Nikmehr
Mohammad Bemani*
Affiliation:
Electrical and Computer Department, University of Tabriz, Tabriz, Iran
Saeid Nikmehr
Affiliation:
Electrical and Computer Department, University of Tabriz, Tabriz, Iran
*
Corresponding author: M. Bemani Email: Bemani@tabrizu.ac.ir
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Abstract

In this paper, by using composite right and left handed transmission lines and non-radiating CRLH-TLs, a dual-band 3-way series power divider (SPD) is presented. The proposed dual-band divider is designed and fabricated on an inexpensive FR4 substrate of thickness h = 0.79 mm and a relative dielectric constant of εr = 4.4 to work at 0.915 and 2.440 GHz. Also, in order to improve the isolation characteristics of this divider, three isolation resistors are implemented among output ports. Derived formulas are presented in details. The dual-band nature of the designed SPD, good input return loss, as well as equal power split among the three output ports, flexibility of spacing the output ports arbitrarily apart, and easy integration with planar devices make the proposed divider well suited for feeding many dual-band microwave circuits, such as multipliers, mixers, and planar array antennas. In addition, due to its excellent return-loss at the output ports and its high isolation, the proposed divider in this paper can be used as a power combiner.

Keywords

Dual-bandSeries power divider (SPD)Power combinerComposite right and left handed transmission line (CRLH-TL)Non-radiating CRLH-TLs (NR-CRLH-TLs)Isolation
Type
Industrial and Engineering Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 7 , November 2016 , pp. 1037 - 1043
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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